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Books > Earth & environment > Earth sciences > The hydrosphere > General

International Trade in Hazardous Wastes (Paperback): D.K. Asante-Duah, I.V. Nagy International Trade in Hazardous Wastes (Paperback)
D.K. Asante-Duah, I.V. Nagy
R1,440 Discovery Miles 14 400 Ships in 10 - 15 working days

This book discusses the need for a regulated and informed forum for international trade in hazardous waste. The authors argue that with careful planning, health and ecological risks can be minimized and net economic benefits realized fairly. The book examines the key parameters that should be considered by potential trading nations to ensure an optimally safe and mutually beneficial partnership. The authors provide comprehensive coverage of the political, environmental, industrial and economic issues involved in this complex and increasingly controversial practice.

Migration Processes in the Soil and Groundwater Zone (1991) (Paperback): Ludwig Luckner Migration Processes in the Soil and Groundwater Zone (1991) (Paperback)
Ludwig Luckner
R2,485 Discovery Miles 24 850 Ships in 10 - 15 working days

This comprehensive work integrates knowledge from physics, chemistry, biology, mathematics, geology, engineering, and several other fields. Its purpose is to provide solution methods, techniques of parameter estimation, and tools for solving the complex problems of mathematical modeling. The main topics presented include fundamentals of mathematical modeling of migration processes; analytical, numerical, and inverse solutions to migration problems; and techniques of parameter estimation and monitoring of migration processes. The book is perfect for anyone involved in the areas of hydrogeology, soil science, environmental engineering, subsurface cleanup, water sciences, agronomy, land development, and civil engineering. It provides professionals with a survey of the methodology of migration model building, the mathematical tools for solving these models, and the technique of parameter estimation in laboratories and in the field. Consultants will appreciate the book's multidisciplinary theoretical background and first approximations for a broad variety of migration data. Professors and students gain an integrated survey of subsurface solute and heat transport, storage, transformation, and exchange processes in both theoretical and practical applications, complete with example problems and solutions.

Handbook of Bioremediation (1993) - Norris * Hinchee * Brown * Mccarty Semprini * Wilson * Kampbell Reinhard * Bouwer * Borden... Handbook of Bioremediation (1993) - Norris * Hinchee * Brown * Mccarty Semprini * Wilson * Kampbell Reinhard * Bouwer * Borden * Vogel Thomas * Ward (Paperback)
Robert D. Norris
R1,195 R1,130 Discovery Miles 11 300 Save R65 (5%) Ships in 10 - 15 working days

Written by leading soil and ground-water remediation scientists, Handbook of Bioremediation presents information regarding the processes, application, and limitations of using remediation technologies to restore contaminated soil and ground water. It covers field-tested technologies, site characterization requirements for each remediation technology, and the costs associated with their implementation. In addition to discussions and examples of developed technologies, the book provides insights into technologies ranging from theoretical concepts to limited field-scale investigations. In situ remediation systems, air sparging and bioventing, the use of electron acceptors other than oxygen, natural bioremediation, and the introduction of organisms into the subsurface are among the specific topics covered in this invaluable handbook.

Remote Sensing the Mekong (Paperback): Claudia Kuenzer, Patrick Leinenkugel, Stefan Dech Remote Sensing the Mekong (Paperback)
Claudia Kuenzer, Patrick Leinenkugel, Stefan Dech
R1,497 Discovery Miles 14 970 Ships in 10 - 15 working days

The Mekong Basin in Southeast Asia is one of the largest international river basins in the world. Its abundant natural resources are shared by six riparian countries and provide the basis for the livelihoods of more than 75 million people. However, ongoing socio-economic growth and related anthropogenic interventions impact the region's ecosystems, and there is an urgent need for the monitoring of the basin's land surface dynamics. Remote sensing has evolved as a key tool for this task, allowing for up-to-date analyses and regular monitoring of environmental dynamics beyond physical or political boundaries and at various temporal and spatial scales. This book serves as a forum for remote-sensing scientists with an interest in the Mekong River Basin to present their recent basin-related works as well as applied case studies of the region. A broad range of sensors from high to medium resolution, and from multispectral to SAR systems, are applied, covering topics such as land cover/land use classification and comparison, time series analyses of climate variables, vegetation structure and vegetation productivity, as well as studies on flood mapping or water turbidity monitoring. This book was originally published as a special issue of the International Journal of Remote Sensing.

Fluoride Removal from Groundwater by Adsorption Technology - The occurrence, adsorbent synthesis, regeneration and disposal... Fluoride Removal from Groundwater by Adsorption Technology - The occurrence, adsorbent synthesis, regeneration and disposal (Hardcover)
Abdulai Salifu
R5,354 Discovery Miles 53 540 Ships in 10 - 15 working days

In the Eastern corridor of Northern region of Ghana, presence of high fluoride concentration in the groundwater has made many drilled boreholes unusable for drinking. Little is, however, known about the factors contributing to the occurrence of high fluoride in this part of Ghana and it's spatial distribution. Treatment of the fluoride-contaminated groundwater by adsorption is also hampered by the lack of suitable adsorbents that are locally available. Based on principal component analysis, and saturation indices calculations, this thesis highlights that, the predominant mechanisms controlling the fluoride enrichment probably include calcite precipitation and Na/Ca exchange processes, both of which deplete Ca from the groundwater, and promote the dissolution of fluorite. The mechanisms also include F-/OH- anion exchange processes, as well as evapotranspiration processes which concentrate the fluoride ions, hence increasing its concentration in the groundwater. Spatial mapping showed that the high fluoride groundwaters occur predominantly in the Saboba, Cheriponi and Yendi districts. The thesis further highlights that, modifying the surface of indigenous materials by an aluminium coating process, is a very promising approach to develop a suitable fluoride adsorbent. Aluminum oxide coated media reduced fluoride in water from 5. 0 +/- 0.2 mg/L to 1.5 mg/L (which is the WHO health based guideline for fluoride), in both batch and continuous flow column experiments in the laboratory. Kinetic and isotherm studies, thermodynamic calculations, as well as analytical results from Fourier Transform Infrared Spectroscopy and Raman spectroscopy, suggest the mechanism of fluoride adsorption onto aluminium oxide coated media involved both physisorption and chemisorption processes. Field testing in a fluoritic community in Northern Ghana showed that the adsorbent is also capable of treating fluoride-contaminated groundwater in field conditions, suggesting it is a promising defluoridation adsorbent. The adsorbent also showed good regenerability potential that would allow re-use, which could make it practically and economically viable. Additional research is, however, required to further increase the fluoride adsorption capacity of developed adsorbent.

Refining the Committee Approach and Uncertainty Prediction in Hydrological Modelling (Hardcover): Nagendra Kayastha Refining the Committee Approach and Uncertainty Prediction in Hydrological Modelling (Hardcover)
Nagendra Kayastha
R3,649 Discovery Miles 36 490 Ships in 10 - 15 working days

Due to the complexity of hydrological systems a single model may be unable to capture the full range of a catchment response and accurately predict the streamflows. A solution could be the in use of several specialized models organized in the so-called committees. Refining the committee approach is one of the important topics of this study, and it is demonstrated that it allows for increased predictive capability of models. Another topic addressed is the prediction of hydrologic models' uncertainty. The traditionally used Monte Carlo method is based on the past data and cannot be directly used for estimation of model uncertainty for the future model runs during its operation. In this thesis the so-called MLUE (Machine Learning for Uncertainty Estimation) approach is further explored and extended; in it the machine learning techniques (e.g. neural networks) are used to encapsulate the results of Monte Carlo experiments in a predictive model that is able to estimate uncertainty for the future states of the modelled system. Furthermore, it is demonstrated that a committee of several predictive uncertainty models allows for an increase in prediction accuracy. Catchments in Nepal, UK and USA are used as case studies. In flood modelling hydrological models are typically used in combination with hydraulic models forming a cascade, often supported by geospatial processing. For uncertainty analysis of flood inundation modelling of the Nzoia catchment (Kenya) SWAT hydrological and SOBEK hydrodynamic models are integrated, and the parametric uncertainty of the hydrological model is allowed to propagate through the model cascade using Monte Carlo simulations, leading to the generation of the probabilistic flood maps. Due to the high computational complexity of these experiments, the high performance (cluster) computing framework is designed and used. This study refined a number of hydroinformatics techniques, thus enhancing uncertainty-based hydrological and integrated modelling.

Operational Flood Forecasting, Warning and Response for Multi-Scale Flood Risks in Developing Cities (Hardcover): Maria... Operational Flood Forecasting, Warning and Response for Multi-Scale Flood Risks in Developing Cities (Hardcover)
Maria Carolina Rogelis
R5,052 Discovery Miles 50 520 Ships in 10 - 15 working days

The aim of this book is to contribute to understanding risk knowledge and to forecasting components of early flood warning, particularly in the environment of tropical high mountains in developing cities. This research covers a challenge, taking into account the persistent lack of data, limited resources and often complex climatic, hydrologic and hydraulic conditions. In this research, a regional method is proposed for assessing flash flood susceptibility and for identifying debris flow predisposition at the watershed scale. An indication of hazard is obtained from the flash flood susceptibility analysis and continually, the vulnerability and an indication of flood risk at watershed scale was obtained. Based on risk analyses, the research follows the modelling steps for flood forecasting development. Input precipitation is addressed in the environment of complex topography commonly found in mountainous tropical areas. A distributed model, a semi-distributed model and a lumped model were all used to simulate the discharges of a tropical high mountain basin with a paramo upper basin. Performance analysis and diagnostics were carried out in order to identify the most appropriate model for the study area for flood early warning. Finally, the Weather Research and Forecasting (WRF) model was used to explore the added value of numerical weather models for flood early warning in a paramo area.

Managing Basin Interdependencies in a Heterogeneous, Highly Utilized and Data Scarce River Basin in Semi-Arid Africa - The Case... Managing Basin Interdependencies in a Heterogeneous, Highly Utilized and Data Scarce River Basin in Semi-Arid Africa - The Case of the Pangani River Basin, Eastern Africa (Hardcover)
Jeremiah Kipkulei Kiptala
R5,057 Discovery Miles 50 570 Ships in 10 - 15 working days

For integrated water resources management both blue and green water resources in a river basin and their spatial and temporal distribution have to be considered. This is because green and blue water uses are interdependent. In sub-Saharan Africa, the upper landscapes are often dominated by rainfed and supplementary irrigated agriculture that rely on green water resources. Downstream, most blue water uses are confined to the river channels, mainly for hydropower and the environment. Over time and due to population growth and increased demands for food and energy, water use of both green and blue water has increased. This book provides a quantitative assessment of green-blue water use and their interactions. The book makes a novel contribution by developing a hydrological model that can quantify not only green but also blue water use by many smallholder farmers scattered throughout the landscape. The book provides an innovative framework for mapping ecological productivity where gross returns from water consumed in agricultural and natural vegetation are quantified. The book provides a multi-objective optimization analysis involving green and blue water users, including the environment. The book also assesses the uncertainty levels of using remote sensing data in water resource management at river basin scale.

Modernisation Strategy for National Irrigation Systems in the Phlippines - Balanac and Sta. Maria River Irrigation Systems... Modernisation Strategy for National Irrigation Systems in the Phlippines - Balanac and Sta. Maria River Irrigation Systems (Hardcover)
Mona Liza Delos Reyes
R5,090 Discovery Miles 50 900 Ships in 10 - 15 working days

The book presents documentary evidence of the insufficiency of rehabilitation works to close the gap between the irrigation service and actual area irrigated of publicly funded national irrigation systems in the Philippines. It outlines a methodology for formulating a modernisation plan for national irrigation systems with focus on the mostly ungauged, medium to small canal irrigation systems. The proposed methodology adaptively modified some known modernisation concepts and techniques and integrated them in a more holistic framework in the context of changing weather patterns and river flow regimes. It includes in-depth review of rehabilitation works; system diagnosis; revalidation of design assumptions on percolation and water supply; characterisation of system management, irrigation service and demand; and drawing up of options and a vision for the modernised irrigation systems. Central to the proposed modernisation strategy is the logical coherence among the design of physical structures, system operation and water supply so that improvements of irrigation service are possible. The book discusses the development of the proposed methodology and demonstrates its utility in two case study irrigation systems.

Point Cloud Data Fusion for Enhancing 2D Urban Flood Modelling (Hardcover): Vorawit Meesuk Point Cloud Data Fusion for Enhancing 2D Urban Flood Modelling (Hardcover)
Vorawit Meesuk
R5,779 Discovery Miles 57 790 Ships in 10 - 15 working days

Modelling urban flood dynamics requires proper handling of a number of complex urban features. Although high-resolution topographic data can nowadays be obtained from aerial LiDAR surveys, such top-view LiDAR data still have difficulties to represent some key components of urban features. Incorrectly representing features like underpasses through buildings or apparent blockage of flow by sky trains may lead to misrepresentation of actual flood propagation, which could easily result in inadequate flood-protection measures. Hence proper handling of urban features plays an important role in enhancing urban flood modelling. This research explores present-day capabilities of using computer-based environments to merge side-view Structure-from-Motion data acquisition with top-view LiDAR data to create a novel multi-source views (MSV) topographic representation for enhancing 2D model schematizations. A new MSV topographic data environment was explored for the city of Delft and compared with the conventional top-view LiDAR approach. Based on the experience gained, the effects of different topographic descriptions were explored for 2D urban flood models of (i) Kuala Lumpur, Malaysia for the 2003 flood event; and (ii) Ayutthaya, Thailand for the 2011 flood event. It was observed that adopting the new MSV data as the basis for describing the urban topography, the numerical simulations provide a more realistic representation of complex urban flood dynamics, thus enhancing conventional approaches and revealing specific features like flood watermarks identification and helping to develop improved flood-protection measures.

Numerical Modelling of Ice Floods in the Ning-Meng Reach of the Yellow River Basin (Hardcover): Chunqing Wang Numerical Modelling of Ice Floods in the Ning-Meng Reach of the Yellow River Basin (Hardcover)
Chunqing Wang
R5,057 Discovery Miles 50 570 Ships in 10 - 15 working days

The Ning-Meng reach of the Yellow River basin is located in the Inner Mongolia region at the Northern part of the Yellow River. Due to the special geographical conditions, the river flow direction is towards the North causing the Ning-Meng reach to freeze up every year in wintertime. Both during the freeze-up and break-up period, unfavourable conditions occur which may cause ice jamming and ice dam formation leading to dike breaching and overtopping of the embankment. Throughout history this has often led to considerable casualties and property loss. Enhanced economic development and human activities in the region have altered the characteristics of the ice regime in recent decades, leading to several ice disasters during freezing or breaking-up periods. The integrated water resources management plan developed by the Yellow River Conservancy Commission (YRCC) outlines the requirements for water regulation in the upper Yellow River during ice flood periods. YRCC is developing measures that not only safeguard against ice floods, but also assure the availability of adequate water resources. These provide the overall requirements for developing an ice regime forecasting system including lead-time prediction and required accuracy. In order to develop such a system, numerical modelling of ice floods is an essential component of current research at the YRCC, together with field observations and laboratory experiments. In order to properly model river ice processes it is necessary to adjust the hydrodynamic equations to account for thermodynamic effects. In this research, hydrological and meteorological data from 1950 to 2010 were used to analyse the characteristics of ice regimes in the past. Also, additional field observations were carried out for ice flood model calibration and validation. By combining meteorological forecasting models with statistical models, a medium to short range air temperature forecasting model for the Ning-Meng reach was established. These results were used to improve ice formation modelling and prolong lead-time prediction. The numerical ice flood model developed in this thesis for the Ning-Meng reach allows better forecasting of the ice regime and improved decision support for upstream reservoir regulation and taking appropriate measures for disaster risk reduction.

Optimization of Biological Sulphate Reduction to Treat Inorganic Wastewaters - Process Control and Potential Use of Methane as... Optimization of Biological Sulphate Reduction to Treat Inorganic Wastewaters - Process Control and Potential Use of Methane as Electron Donor (Hardcover)
Joana Cassidy
R3,362 Discovery Miles 33 620 Ships in 10 - 15 working days

This work investigated two different approaches to optimize biological sulphate reduction in order to develop a process control strategy to optimize the input of an electron donor and to study how to increase the feasibility of using a cheap carbon source. Feast/famine regimes, applied to design the control strategy, were shown to induce the accumulation of storage compounds in the sulphate reducing biomass. This study showed that delays in the response time and a high control gain can be considered as the most critical factors affecting a sulphide control strategy in bioreactors. The delays are caused by the induction of different metabolic pathways in the anaerobic sludge, including the accumulation of storage products. On this basis, a mathematical model was developed and validated. This can be used to develop optimal control strategies. In order to understand the microbial pathways in the anaerobic oxidation of methane coupled to sulphate reduction (AOM-SR), diverse potential electron donors and acceptors were added to in vitro incubations of an AOM-SR enrichment at high pressure. Acetate was formed in the control group, probably resulting from the reduction of CO2. These results support the hypothesis that acetate may serve as an intermediate in the AOM-SR process.

Multiple Scales of Suspended Sediment Dynamics in a Complex Geometry Estuary (Hardcover): Fernanda Achete Multiple Scales of Suspended Sediment Dynamics in a Complex Geometry Estuary (Hardcover)
Fernanda Achete
R4,911 Discovery Miles 49 110 Ships in 10 - 15 working days

Many estuaries are located in urbanized, highly engineered environments. Cohesive sediment plays an important role due to its link with estuarine health and ecology. An important ecological parameter is the suspended sediment concentration (SSC) translated into turbidity levels and sediment budget. This study contributes to investigate and forecast turbidity levels and sediment budget variability at San Francisco Bay-Delta system at a variety of spatial and temporal scales applying a flexible mesh process-based model (Delft3D FM). It is possible to have a robust sediment model, which reproduces 90% of the yearly data derived sediment budget, with simple model settings, like applying one mud fraction and a simple bottom sediment distribution. This finding opens the horizon for modeling less monitored estuaries. Comparing two case studies, i.e. the Sacramento-San Joaquin Delta and Alviso Slough, a classification for estuaries regarding the main sediment dynamic forcing is proposed: event-driven estuary (Delta) and tide-driven estuary (Alviso Slough). In the event-driven estuaries, the rivers are the main sediment source and the tides have minor impact in the net sediment transport. In the tide-driven estuaries, the main sediment source is the bottom sediment and the tide asymmetry defines the net sediment transport. This research also makes advances in connecting different scientific fields and developing a managerial tool to support decision making. It provides the basis to a chain of models, which goes from the hydrodynamics, to suspended sediment, to phytoplankton, to fish, clams and marshes.

Ganga-Brahmaputra-Meghna Waters - Advances in Development and Management (Paperback): Mahesh Chandra Chaturvedi Ganga-Brahmaputra-Meghna Waters - Advances in Development and Management (Paperback)
Mahesh Chandra Chaturvedi
R2,033 Discovery Miles 20 330 Ships in 10 - 15 working days

Once a prosperous region, the Ganga-Brahmaputra-Meghna (GBM) river basin-inhabited by about a tenth of the world's population-is currently one of the poorest. Large-scale socioeconomic development is urgently needed to ensure the sustainability of the region, and the management of water resources is a crucial part of this. Ganga-Brahmaputra-Meghna Waters: Advances in Development and Management discusses water resource development and management issues related to the GBM river basin, including interactions, institutional set ups, and future perspectives. It also proposes several novel technologies, developed by the author, to help revolutionize the development of India's waters. Written by an authority in water resource management studies, the book addresses the need for a holistic, integrated, basin-wide approach to improve the quality of life for people living within the region. Pointing out that water does not recognize political boundaries, the text also discusses Nepal, Bangladesh, and Bhutan as integral parts of the GBM basin. The author suggests that the unique geophysical and hydrologic characteristics of the basin present an opportunity for technologies that can increase the available water and hydroelectric potential in the region. The proposed advances can also help generate collaborative development between India and its neighboring countries. The book emphasizes the adoption of a societal-environmental systems management approach, which treats the physical and social-environmental systems as integral components, backed by participatory transparent modeling. It also argues that technology must be considered a key part of the system. A unique contribution to water resources engineering, this book provides readers with a case study of the development and management of the world's largest water system. It offers new perspectives and useful advice for other countries and regions developing river and irrigation plans and for policy makers involved in large-scale water resources engineering.

Remote Sensing of Global Croplands for Food Security (Paperback): Prasad Thenkabail, John G. Lyon, Hugh Turral, Chandrashekhar... Remote Sensing of Global Croplands for Food Security (Paperback)
Prasad Thenkabail, John G. Lyon, Hugh Turral, Chandrashekhar Biradar
R2,442 Discovery Miles 24 420 Ships in 10 - 15 working days

Increases in populations have created an increasing demand for food crops while increases in demand for biofuels have created an increase in demand for fuel crops. What has not increased is the amount of croplands and their productivity. These and many other factors such as decreasing water resources in a changing climate have created a crisis like situation in global food security. Decision makers in these situations need accurate information based on science. Remote Sensing of Global Croplands for Food Security provides a comprehensive knowledge base in use of satellite sensor-based maps and statistics that can be used to develop strategies for croplands (irrigated and rainfed) and their water use for food security. Over 50 Multi-disciplinary Global Experts Give Insight and Provide Practical Approaches Emphasizing practical mapping technologies based on advanced remote sensing data and methods, this book provides approaches for estimating irrigated and rainfed cropland areas and their water use on a national, continental, or global basis. Written by 50+ leading experts working at the forefront of this critical area, it offers case studies from a variety of continents highlighting the subtle requirements of each. In a very practical way it demonstrates the experience, utility, and models for determining water resources used and resulting yields of irrigated and rainfed croplands. The authors discuss: (a) innovative methods used for mapping croplands, (b) approaches adopted to collect cropland data in different countries by traditional and non-traditional means, (c) accuracies, uncertainties, and errors involved in producing cropland products, (d) surface energy balance models used to assess crop water use, and (e) extensive results and outcomes pertaining to global croplands and their water use. Develop Strategies for an Enhanced Green Revolution and an Accelerated Blue Revolution Linking croplands to water use and food security, the book provides a global perspective on this sensitive issue. It gives insight into the extent of cropland usage, their spatial distribution, their cropping intensities, and their water use patterns. The editors collect the experience, methods, models, and results that show the way forward and help in decision-making on water resources and food security. All of this is required for developing strategies for an enhanced green revolution and for an accelerated blue revolution.

Forest Landscape Restoration - Integrated Approaches to Support Effective Implementation (Hardcover): Stephanie Mansourian,... Forest Landscape Restoration - Integrated Approaches to Support Effective Implementation (Hardcover)
Stephanie Mansourian, John Parrotta
R4,494 Discovery Miles 44 940 Ships in 10 - 15 working days

Forest landscape restoration (FLR) is a planned process that aims to regain ecological integrity and enhance human wellbeing in deforested or degraded landscapes. The aim of this book is to explore options to better integrate the diverse dimensions - spatial, disciplinary, sectoral, and scientific - of implementing FLR. It demonstrates the value of an integrated and interdisciplinary approach to help implement FLR focusing specifically on four issues: understanding the drivers of forest loss and degradation in the context of interdisciplinary responses for FLR; learning from related integrated approaches; governance issues related to FLR as an integrated process; and the management, creation and use of different sources of knowledge in FLR implementation. The emphasis is on recognising the need to take human and institutional factors into consideration, as well as the more obvious biophysical factors. A key aim is to advance and accelerate the practice of FLR, given its importance, particularly in a world facing increasing environmental challenges, notably from climate change. The first section of the book presents the issue from an analytical and problem-orientated viewpoint, while later sections focus on solutions. It will interest researchers and professionals in forestry, ecology, geography, environmental governance and landscape studies.

Alboran Sea - Ecosystems and Marine Resources (Hardcover, 1st ed. 2021): Jose Carlos Baez, Juan-Tomas Vazquez, Juan Antonio... Alboran Sea - Ecosystems and Marine Resources (Hardcover, 1st ed. 2021)
Jose Carlos Baez, Juan-Tomas Vazquez, Juan Antonio Caminas, Mohammed Malouli Idrissi
R4,897 Discovery Miles 48 970 Ships in 18 - 22 working days

The Alboran Sea represents a regional Mediterranean space where North and South worlds merges, creating a geopolitical region where marine resources and maritime activities should be managed from a national and international perspectives. It is widely known, that currently the planet is suffering a global change, and it is also affecting the Alboran Sea, its ecosystems and populations. An important first step to update a paramount vision on this region is to understand the climatic, geologic and oceanographic, including biochemical cycles, process which shapes the rich geodiversity, biodiversity, the productivity, and the sustainable use of the marine resources from Alboran Sea. The fisheries management system should take into account marine environmental variability to achieve biological sustainability of marine resources. Well-funded policy-makers' decisions require a sound science based knowledge of the interaction between the marine environment and commercial stocks. This is because the role of marine environment in the evolution of fish stocks is sometimes even more important than the one played by fishers in the commercial exploitation of them. Finally, we should analyze the different aspects of political context that could affect the management of the resources from Alboran Sea in the context of climate change. This book reviews different aspects of the Alboran Sea to help understand the current situation from the original Tethis Ocean. The book is divided into four blocks: (i) Oceanographic, geological and ecological context (chapters 2 to 7), (ii) biodiversity and ecosystems distribution (chapters 8 to 12), (iii) fisheries resources and aquaculture (chapters 13 to 20), and (iv) conservation, management and marine polices (chapters 21 to 25).

An Introduction to Advanced Fluid Dynamics and Fluvial Processes (Hardcover): B.S. Mazumder, T I Eldho An Introduction to Advanced Fluid Dynamics and Fluvial Processes (Hardcover)
B.S. Mazumder, T I Eldho
R4,977 Discovery Miles 49 770 Ships in 10 - 15 working days

Gives comprehensive treatment on fluid dynamics and fluvial process from fundamentals to advanced level applications in one volume Present knowledge on sediment transport and its interaction with turbulence Covers recent methodologies on the study of turbulent flow theories with verification of data collected by ADV, PIV, LDA, and imaging techniques Explores latest empirical formulae for estimation of bed load, saltation and suspension Contains theory to experimentations with field practices with comprehensive explanations and illustrations with introduction of environmental fluid mechanics

Agricultural Water Productivity Optimization for Irrigated Teff (Eragrostic Tef) in a Water Scarce Semi-Arid Region of Ethiopia... Agricultural Water Productivity Optimization for Irrigated Teff (Eragrostic Tef) in a Water Scarce Semi-Arid Region of Ethiopia (Hardcover)
Yenesew Mengiste Yihun
R3,641 Discovery Miles 36 410 Ships in 10 - 15 working days

The prospects for the future are clear. Agriculture will have to respond to changing patterns of demand for food and combat food insecurity and poverty amongst marginalized communities. In so doing, agriculture will have to compete for scarce water with other users and reduce pressure on the water environment. Moreover, water managers have to unlock the potential of agricultural water management practices to raise productivity of water, spread equitable access to water, and conserve the natural productivity of the water resource base. This PhD thesis presents field tests combined with modelling work on the cultivation of irrigated Teff (Eragrostic Tef) in the Awash Rift Valley of Ethiopia. The field experiments were conducted during the dry season for two years. The results of these studies revealed that dealing with improvement of water productivity is closely related to the irrigation practice of regulated deficit irrigation and has a direct effect on yield, as the amount of water applied decreases intentionally the crop yield drops. Overall, this research has demonstrated the potential and the limitations of combining experimental fieldwork with modelling to optimize agricultural water productivity for Teff cultivation. Focusing on only experimental fieldwork is a single approach, and is hardly ever sufficient for achieving the best solutions to current water management problems. New guidelines on using the combined effort of experimental work in the field to produce field experimental data and using models are clearly needed. It is to these needs as well as to the required increase of Teff production under water scarce conditions that this research provides its main contribution.

Piping and Valves (Hardcover): Frank R Spellman, Joanne Drinan Piping and Valves (Hardcover)
Frank R Spellman, Joanne Drinan
R5,762 Discovery Miles 57 620 Ships in 10 - 15 working days

This volume in the Fundamentals for the Water and Wastewater Main Operator series covers the basics of piping and valves in water and wastewater plants, including details on fittings, strainers, filters, traps and control systems. The book explains how pipes and valves are used to feed materials (e.g., chemicals) into influents and effluents and siphon off unwanted liquid and gaseous by-product. Also covered is how pipes are developed into systems and subsystems and coordinated into a plant-wide functioning unit.

Nano-biotechnology for Waste Water Treatment - Theory and Practices (Hardcover, 1st ed. 2022): Jai Prakash Narain Rai, Shweta... Nano-biotechnology for Waste Water Treatment - Theory and Practices (Hardcover, 1st ed. 2022)
Jai Prakash Narain Rai, Shweta Saraswat
R3,164 Discovery Miles 31 640 Ships in 18 - 22 working days

This book embodies the potentials of nanobiotechnology-based water treatment techniques to provide a solid understanding of the subjects. Starting with a refresher of the basic conventional technologies which are now been integrated with nanomaterials for an efficient, viable, and eco-friendly treatment of contaminated water. The book covers various physical, chemical, and hybrid methods of nanobiomaterial synthesis and their fabrication for characterizing existing techniques. The book gives special attention to those nanotechnology-based approaches that promise easier, faster, and cheaper processes in contaminants monitoring and their treatment. Several case studies explain in an easy to understand format how employing nanobiomaterials as an indicator and analytical tool will enable students to learn about cleaning up the environment.

Groundwater Flow Understanding - From Local to Regional Scale (Paperback): J. Joel Carrillo Rivera, M. Adrian Ortega Guerrero Groundwater Flow Understanding - From Local to Regional Scale (Paperback)
J. Joel Carrillo Rivera, M. Adrian Ortega Guerrero
R2,083 Discovery Miles 20 830 Ships in 10 - 15 working days

Any sustainable groundwater development programme requires knowledge of the prevailing flow system, extending from local to regional scale. This book of selected papers discusses integral groundwater management with scale flow issues and presents methods of defining, preventing, controlling and mitigating negative environmental impacts related to groundwater. It highlights specific issues such as trans-boundary groundwater flow, groundwater recharge, groundwater mining, and groundwater flow in thick aquifers, and stresses the importance of the sustainable development of groundwater and its social and economic implications. The book will interest groundwater researchers and professionals, students, government administrators and educators, providing new insights into the procedures and processes that are influenced by the scale of the groundwater flow system.

Handbook of Coastal Processes and Erosion (Hardcover): Paul D. Komar Handbook of Coastal Processes and Erosion (Hardcover)
Paul D. Komar
R6,767 Discovery Miles 67 670 Ships in 10 - 15 working days

The objective of this book is to focus on the physical processes that cause coastal erosion.Many scientists and engineers have focused their research on the entire range of physical processes from the waves and the currents in the nearshore to the response of the beach, via sand transport, resulting in a changing coastal morphology. Of these many processes, this book focuses only on those which directly relate the generation of coastal erosion. Some chapters deal exclusively with the physical processes, while others provide examples of erosion problems although most of the chapter topics have clear implications for issues of coastal-zone management, these issues are not belaboured as several other books are already available in this area. The objective is to provide state-of-the-art presentation of the science of coastal erosion processes.

Transboundary Hydro-Governance - From Conflict to Shared Management (Hardcover, 1st ed. 2018): Jacques Ganoulis, Jean Fried Transboundary Hydro-Governance - From Conflict to Shared Management (Hardcover, 1st ed. 2018)
Jacques Ganoulis, Jean Fried
R4,633 Discovery Miles 46 330 Ships in 10 - 15 working days

Attending water security is an important challenge and a major systemic risk humanity faces in the years to come. This is due to population increase, over-consumption of water, especially in agriculture, climate change and various forms of water pollution. The issue becomes more complicated in transboundary water catchments that cover almost half of the world's land surface, with about 60% of global river flow and 40% of the world's population. Also, in many parts of the planet, like Saharan Africa, population depends on groundwater resources located in transboundary aquifer systems. These facts illustrate the importance of the book's subject, which is the governance of transboundary waters, both surface and groundwater. The book is written by two distinguished scientists, who, having worked in various international institutions, like UNESCO, GEF, UNEP and at the European Commission, have both an extended expertise on how to bridge the gap between science and political decision-making, which is the main factor for an effective governance of water resources. What is new in the book is the integrated analysis of transboundary governance of both surface water and groundwater, as it occurs in reality. In current literature, groundwater is still often missing for the benefit of surface water or, on the contrary, it is treated separately from surface water. The most important feature of the book is to distinguish between the real and a "good" or an effective transboundary water governance and to provide practical tools, methodologies and examples for its implementation in the field. Published timely during 2018, the book will contribute to address successfully practical problems of governance of transboundary waters that represent a very important part of our precious fresh water resources.

Ecological Causal Assessment (Paperback): Susan B. Norton, Susan M. Cormier, Glenn W. Suter II Ecological Causal Assessment (Paperback)
Susan B. Norton, Susan M. Cormier, Glenn W. Suter II
R2,125 Discovery Miles 21 250 Ships in 10 - 15 working days

Edited by experts at the leading edge of the development of causal assessment methods for more than two decades, Ecological Causal Assessment gives insight and expert guidance on how to identify cause-effect relationships in environmental systems. The book discusses the importance of asking the fundamental question "Why did this effect happen?" before moving on to "How can we fix it?" The book provides a deeper understanding of different philosophical and analytical approaches, and of cognitive tendencies that can lead to errors. It describes formal processes for causal assessment that are particularly helpful when the situation is complex or contentious. It also describes how to approach the analysis of available data and to optimize collection efforts. The text then details a transparent process that helps others replicate results and can be used to convince skeptics that the true cause has been identified. Several detailed case studies show how to apply the process to streams, watersheds, and a terrestrial wildlife population. Causal assessment is a challenging, but endlessly fascinating endeavor. Success requires the persistence to figure things out and solid strategies for using the information that you have and getting more of the right kind of information that you need. This book gives you just that: the skills, knowledge, and confidence needed to successfully unravel tough environmental problems and build the knowledge base for effective management solutions. Read interview about this book with author Sue Norton here: http://www.freshwater-science.org/Publications/Newsletter-In-The-Drift/ITD--Fall-2015.cfm#itdqna

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