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Books > Earth & environment > Earth sciences > Geology & the lithosphere > Soil science, sedimentology
This Ph.D. thesis attempts to decipher the closure of the Palaeozoic Palaeo-Asian Ocean along the enigmatic Solonker Suture in East Asia adopting a methodology that integrates geochemical and geochronological data from Palaeozoic sedimentary and volcanic rocks in the region. It provides an in-detail but also broad insight into the Palaeozoic to early Mesozoic tectonic evolution of the region, not only pin-pointing the debated location of the Solonker Suture but also the timing of final disappearance of the Palaeo-Asian Ocean during Permian to Early Triassic times. The results have led to propose a tectonic 'soft-collision' model for the amalgamation of the North China Craton and the Mongolian Terranes in northern Asia explaining the general absence of geologic features characteristic for continent-continent collisions such as the occurrence of regional-scale high-grade metamorphic rocks, ophiolite belts and fold-thrust structures. This new model may serve as a blueprint for the tectonic evolution of similar suture zones that are characterized by the absence of typical collision related lithologies and structures. The thesis is particularly useful as a guide for researchers who seek an in-depth understanding of the Palaeozoic to early Mesozoic tectonic evolution of northern China and Central Asia along the Solonker Suture.
The book encompasses different Agriculturally Important microorganisms (AIMs), mechanisms of action and modes of application for sustainable agriculture. The potential of microbes in nitrogen fixation, solubilizing nutrients like phosphorous, Potassium, tolerance to etc. are the major strength of the book. There is relatively a new frontier, use of Plant Growth Promoting Rhizobacteria(PGPR)in enhancing crop productivity. These microbes inhabit at the rhizospheric region of the root and facilitate plant growth through a variety of direct and indirect mechanisms. These PGP have been identified to solubilize phosphate, Potassium, Zinc, produce siderophore, IAA, Hydrogencyanide, fix ammonia and many more. Today, such microbes are extensively studied not only as a biofertilizer or fortification of nutrient to the plant, but also a potential agent to decrease application of chemical fertilizer and other agrochemicals. The book also gives an insight to this aspect also. Last but not the least,a light has been thrown on use and application of nano-biofertilizer for sustainable agriculture. Note: T&F does not sell or distribute the hardback in India, Pakistan, Nepal, Bhutan, Bangladesh and Sri Lanka. This title is co-published with NIPA.
Proceedings of the International Geotechnical Symposium on [title], Fukuoka Kyushu, Oct. '88. No index; acidic paper. Annotation copyright Book News, Inc. Portland, Or.
I write because I am concerned that I and my agricultural colleagues have avoided addressing the moral dimension of the environmental and social problems we have contributed to. I hope for an exchange of ideas about agriculture's moral dilemmas. I encourage my readers to engage in a collective conversation about the dilemmas and avoid remaining in what Merton calls "the collective arrogance and despair of his own herd." If those engaged in agriculture continue to ignore and fail to realize our common difficulties they will be addressed and resolved by societal pressure and political action, which may not yield the resolution we favor. The book's goal is not to resolve the moral dilemmas raised. It is to raise them and encourage thought and discussion. It will ask but not answer why nearly all involved in agriculture have not addressed the moral concerns voiced by the general public. The agricultural enterprise is committed to the benefits and future success of the present, very productive, chemical, capital, and energy intensive system, which is, in the minds of many, not sustainable. The internal justification invokes the moral claim that they feed the world's population. The question remains whether or not the prevailing moral justification of feeding the world is adequate given all the issues modern, developed country agriculture faces: pesticides in soil, water, and food, cruelty to animals, Biotech/GMO's, corporate agriculture, pollution by animal factory waste, exploitation of and cruelty to migrant labor.
The cropping system is one of the important components of sustainable agriculture, since it provides more efficient nutrient cycling. As such, balanced fertilization must be based on the concept of sustainable crop production. Feeding the rapidly growing world population using environmentally sustainable production systems is a major challenge, especially in developing countries. A number of studies have highlighted the fact that degradation of the world's cultivated soils is largely responsible for low and plateauing yields. Soil is lost rapidly but only formed over millennia, and this represents the greatest global threat to nutrient dynamics in agriculture. This means that nutrient management is essential to provide food and nutritional security for current and future generations. Nutrient dynamics and soil sustainability imply the maintenance of the desired ecological balance, the enhancement and preservation of soil functions, and the protection of biodiversity above and below ground. Understanding the role of nutrient management as a tool for soil sustainability and nutritional security requires a holistic approach to a wide range of soil parameters (biological, physical, and chemical) to assess the soil functions and nutrient dynamics of a crop management system within the desired timescale. Further, best nutrient management approaches are important to advance soil sustainability and food and nutritional security without compromising the soil quality and productive potential. Sustainable management practices must allow environmentally and economically sustainable yields and restore soil health and sustainability. This book presents soil management approaches that can provide a wide range of benefits, including improved fertility, with a focus on the importance of nutrient dynamics. Discussing the broad impacts of nutrients cycling on the sustainability of soil and the cropping systems that it supports, it also addresses nutrient application to allow environmentally and economically sustainable agroecosystems that restore soil health. Arguing that balanced fertilization must be based on the concept of INM for a cropping system rather than a crop, it provides a roadmap to nutrient management for sustainability. This richly illustrated book features tables, figures and photographs and includes extensive up-to-date references, making it a valuable resource for policymakers and researchers, as well as undergraduate and graduate students of Soil Science, Agronomy, Ecology and Environmental Sciences.
The well being of the humans including animals depend upon very much on how the soil productivity is maintained without ecosystems degradation. Most likely soil can efficiently sustain humanity with food, fibre, feed to animals and clean environmental maintenance only when it is considered and managed from the holistic and ecosystem points of view. Plants need at least 16 essential elements for their normal growth and to complete their life. The soil testing provides the status of the nutrients determined in the laboratory for the application of appropriate rate of fertilizers to eliminate the nutrients limiting for production. The soil testing along with plant analysis gives the true status of plant nutrients affected by soil properties to take the proper care for the plant growth. Our available water resources are diminishing and getting polluted with excess use of fertilizers and pesticides which are ultimately affecting the environment, food produced and water quality. The purpose of this book 'Soil Testing and Analysis' is i to provide the vital plant nutrients functions for which soil testing is to be made; ii to determine the nutrient status of the soil with appropriate methods, measurements and criteria for interpreting those assessments; iii to analyze the appropriate parts of the plant samples for nutrient elements with available methods of analysis; iv to analyze the important water quality parameters with interpretations; and v to prepare the soil, plant and water samples for the analysis of pesticide residues with the different available methods. This is a comprehensive presentation of useful information for the scientific and technical personals involved in such types of analysis.
Several textbooks and edited volumes are currently available on general soil fertility but' to date' none have been dedicated to the study of "Sustainable Carbon and Nitrogen Cycling in Soil." Yet this aspect is extremely important, considering the fact that the soil, as the 'epidermis of the Earth' (geodermis)' is a major component of the terrestrial biosphere. This book addresses virtually every aspect of C and N cycling, including: general concepts on the diversity of microorganisms and management practices for soil, the function of soil's structure-function-ecosystem, the evolving role of C and N, cutting-edge methods used in soil microbial ecological studies, rhizosphere microflora, the role of organic matter (OM) in agricultural productivity, C and N transformation in soil, biological nitrogen fixation (BNF) and its genetics, plant-growth-promoting rhizobacteria (PGPRs), PGPRs and their role in sustainable agriculture, organic agriculture, etc. The book's main objectives are: (1) to explain in detail the role of C and N cycling in sustaining agricultural productivity and its importance to sustainable soil management; (2) to show readers how to restore soil health with C and N; and (3) to help them understand the matching of C and N cycling rules from a climatic perspective. Given its scope, the book offers a valuable resource for educators, researchers, and policymakers, as well as undergraduate and graduate students of soil science, soil microbiology, agronomy, ecology, and the environmental sciences. Gathering cutting-edge contributions from internationally respected researchers, it offers authoritative content on a broad range of topics, which is supplemented by a wealth of data, tables, figures, and photographs. Moreover, it provides a roadmap for sustainable approaches to food and nutritional security, and to soil sustainability in agricultural systems, based on C and N cycling in soil systems.
Meeting the food requirements of an ever-increasing population is a pressing challenge for every country around the globe. Soil degradation has a negative impact on food security by reducing the cultivated land areas, while at the same time the world population is predicted to increase to 9.2 billion in 2050. Soil degradation adversely affects soil function and productivity and degraded soils now amount to 6 billion ha worldwide. The major factors are salinization, erosion, depletion of nutrients due to exhaustive agricultural practices and contamination with toxic metal ions and agrochemicals, which reduces the activity of soil microbe. In addition, poor soil management also decreases fertility. As such, measures are required to restore the soil health and productivity: organic matter, beneficial microorganisms and nutrient dynamics can all improve the physical, chemical and biological properties of soil. Understanding the role of soil health restoration and management in sustainability and nutritional security calls for a holistic approach to assess soil functions and examine the contributions of a particular management system within a defined timescale. Further, best management practices in cropping systems are important in ensuring sustainability and food and nutritional security without compromising the soil quality and productivity po tential. Rational soil management practices must allow environmentally and economically sustain able yields and restoration of soil health.
This book is a much-expanded and updated edition of a previous
volume, published in 1996 as No-tillage Seeding: Science and
Practice. The base objective remains to describe, in lay terms, a
range of international experiments designed to examine the causes
of successes and failures in no-tillage. The book summarizes the
advantages and disadvantages of no tillage and highlights the pros
and cons of a range of features and options, without promoting any
particular product. Topics added or covered in more detail in the
second edition include:
Bioremediation is a rapidly advancing field and the technology has been applied successfully to remediate many contaminated sites. The goal of every soil remediation method is to enhance the degradation, transformation, or detoxification of pollutants and to protect, maintain and sustain environmental quality. Advances in our understanding of the ecology of microbial communities capable of breaking down various pollutants and the molecular and biochemical mechanisms by which biodegradation occurs have helped us in developing practical soil bioremediation strategies. Chapters dealing with the application of biological methods to soil remediation are contributed from experts authorities in the area of environmental science including microbiology and molecular biology from academic institutions and industry."
This book discusses how sediments compact with depth and applications of the compaction trends. Porosity reduction in sediment conveniently indicates the degree of sediments compacted after deposition. Published empirical curves- the compaction curves- are depth-wise porosity variation through which change in pore spaces from sediment surface to deeper depths e.g. up to 6 km can be delineated. Porosity is derived from well logs. Compaction curves, referred to as the Normal Porosity Profile of shales, sandstones and shale bearing sandstones of different models are reviewed along with the different mechanical and chemical compaction processes. These compaction models reveals how porosity reduces depth-wise and the probable reason for anomalous zones. Deviation from these normal compaction trends may indicate abnormal pressure scenarios: either over- or under pressure. We highlight global examples of abnormal pressure scenarios along with the different primary- and secondary mechanisms. Well logs and cores being the direct measurements of porosity, well log is the only cost-effective way to determine porosity of subsurface rocks. Certain well logs can detect overpressure and the preference of one log above the other helps reduce the uncertainty. Apart from delineation of under-compacted zones by comparing the modeled- with the actual compaction, porosity data can also estimate erosion.
This book presents evidence-based approaches and techniques used to diagnose and manage organic solutes, oxidative stress, and antioxidant enzymes in crop plants under abiotic stressors. It discusses strategies in abiotic stress tolerance including osmoregulation, osmoprotectants, and the regulation of compatible solutes and antioxidant enzymes in plants. With contributions from 49 scholars worldwide, this authoritative guide is educational for scientists working with plants and abiotic stressors. Provides comprehensive coverage of all aspects of abiotic stress, from abiotic stresses' effects on plant growth, development, and defense mechanisms, to functionality of enzymatic and non-enzymatic antioxidant enzymes in crop plants. Outlines the dangers of reactive oxygen species. Discusses using antioxidant enzymes and antioxidant molecules in plant protection mechanisms. Edited by Arafat Abdel Hamed Abdel Latef, Professor of Plant Physiology at South Valley University, Egypt, this book is written for graduate students and scholars researching abiotic plant stressors. "The book represents an excellent strategy to understand the mechanisms and techniques of antioxidant enzymes in the plant cell under stress conditions." - Professor Mostafa El-sheekh "Provides a thorough and detailed picture of the updated knowledge on the techniques used to manage organic solutes, oxidative stress and stress-related enzymes under abiotic stressors." - Bhoopander Giri, Ph.D. "Will serve as an imperative source of scientific literature in the plant stress biology field." - Narendra Singh Yadav, Ph.D. "The book has eighteen chapters written by scholars of international expertise in plant stress management." - Dr. Sikander PAL, Senior Assistant Professor
This book charts and explains how human activities have shaped and altered the development of soils in many parts of the world, taking advantage of five decades of soil analytical work in many archaeological landscapes from around the globe. The core of this volume describes and illustrates major transformations of soils and the processes involved in these that have occurred during the Holocene and how these relate to human activities as much as natural causes and trajectories of development, right up to the present day. This is done in two ways: first by examining a number of major processes and impacts on the landscape such as Holocene warming and the development of woodland, clearance and agricultural activities, and second by examining the trajectories of these changes in soil systems in different palaeo-environmental situations in several diverse parts of the world. The transformations identified are relevant to prevalent themes of today such as over-development and soil, land and environmental degradation and resilience. The studies articulated relate to Britain, southeastern Europe, the Mediterranean basin, East Africa, northern India and Peru in South America.
Globally, 30% of the world population lived in urban areas in 1950, 54% in 2016 and 66% projected by 2050. The most urbanized regions include North America, Latin America, and Europe. Urban encroachment depletes soil carbon and the aboveground biomass carbon pools, enhancing the flux of carbon from soil and vegetation into the atmosphere. Thus, urbanization has exacerbated ecological and environmental problems. Urban soils are composed of geological material that has been drastically disturbed by anthropogenic activities and compromised their role in the production of food, aesthetics of residential areas, and pollutant dynamics. Properties of urban soils are normally not favorable to plant growth-the soils are contaminated by heavy metals and are compacted and sealed. Therefore, the quality of urban soils must be restored to make use of this valuable resource for delivery of essential ecosystem services (e.g., food, water and air quality, carbon sequestration, temperature moderation, biodiversity). Part of the Advances in Soil Sciences Series, Urban Soils explains properties of urban soils; assesses the effects of urbanization on the cycling of carbon, nitrogen, and water and the impacts of management of urban soils, soil restoration, urban agriculture, and food security; evaluates ecosystem services provisioned by urban soils, and describes synthetic and artificial soils.
The living soil is crucial to photosynthesis, biogeochemical cycles, global food production, climate change, biodiversity, and plant and animal health. In the past decade, scientists have made significant advances in soil microbiology research. While the basic principles are now better understood, knowledge has been forthcoming on the best available technologies and methods applied to researching soil microorganisms, their diversity, interactions, biochemistry, survival, gene expression, and their roles in global climate change, plant disease suppression and growth stimulation, and biogeochemical cycles. This knowledge can be applied to better predict the transformation of pollutants in soil and the activities of microbes in the rhizosphere. It will also assist us in fostering crop production in an era with an increasing human population and intensification of agriculture. Following the tradition of its predecessors, Modern Soil Microbiology, Third Edition, is an indispensable source that supports graduate/undergraduate teaching for soil and environmental microbiologists in academia, as well as in government and industrial laboratories. It is a comprehensive collection of chapters on various aspects of soil microbiology, useful for all professionals working with soils. Compiled by internationally renowned educators and research scholars, this textbook contains key tables, figures, and photographs, supported by thousands of references to illustrate the depth of knowledge in soil microbiology. FEATURES Fully updated and expanded to include new key chapters on historical developments, future applications, and soil viruses and proteins Discusses molecular methods applied to soil microbiology, diverse soil microorganisms, and global climate change Emphasizes the role of terrestrial microorganisms and cycles involved in climate change Details the latest molecular methods applied to soil microbiology research User-friendly for students, and containing numerous tables, figures, and illustrations to better understand the current knowledge in soil microbiology
Organic farming is not only a philosophy; it is also a well-researched science. The second edition of The Science and Technology of Organic Farming presents the scientific basis of organic farming and the methods of application needed to achieve adequate yields through plant nutrition and protection. Organic farming is a scientifically derived method of improving soil fertility to increase agricultural yields with limited chemical inputs. As such, it can meet public demand for reduced chemical inputs in agriculture and play a key role in meeting the needs of a growing world population. The new edition of this highly regarded book gives clear and comprehensive details on how soil fertility can be maintained and how plants can be nourished in organic agriculture. Chapters on soil fertility and plant nutrition explain the chemistry of the plant, the soil, and the soil solution and outline the importance of plant macronutrients and micronutrients. The book offers practical information on using of green manures, composts and lime to maintain soil fertility; introduces methods of tillage of land; provides organic methods of controlling weeds, insects, and diseases; and suggests how food produce can be stored without refrigeration. The text provides information on how to assess and govern the nutritional status of crops and the fertility and condition of soil and presents guidelines, recommendations, and procedures for determining the best fertility recommendations for individual situations. This edition includes an entirely new chapter on hydroponics that explains organic approaches to hydroponic crop production. With a full bibliography of references, this text is a practical guide for anyone interested in organic farming, from farmers and agricultural advisers to teachers, soil scientists, plant scientist, entomologists and students of other biological and environmental sciences.
Compost Utilization in Production of Horticultural Crops provides information for the compost industry to develop horticulture production efforts and techniques. This highly practical book contains information applicable to current production issues facing the fruit and nuts, vegetable, and ornamentals and turfgrass industry. Written by scientific experts, chapters evaluate the uses of compost for greater crop yields and decreased plant disease and pesticide application, irrigation water and fertilizer demand. Considering compost use increases carbon sequestration, the book provides guidelines on converting safe waste materials into composted soil amendments while minimizing negative impacts on the environment. Chapters cover the diversity and variability on compost uses of available feedstocks; composting methods, application rates, methods and timing; and considers the benefits of application alone or combined with other organic or inorganic nutrient sources. Practical reference for regular use by professionals in compost and horticulture industries. Presents information for both agricultural and waste management. Addresses the effects of compost on soil health and food safety. Discusses compost quality and compost as a supplement in soil fertility programs. Features information on compost nematodes management, compost teas effect on foliar diseases, and the economic impact of compost on crop production. This book is essentail reading for fruit and nuts, vegetable, ornamental, landscape and turfgrass producers; waste and compost industry representatives, consultants and regulators; and academic plant and soil science researchers.
Management Strategies for Water Use Efficiency and Micro Irrigated Crops presents new research and technologies for making better use of water resources for agricultural purposes. The chapters focus on better management to improve allocation and irrigation water efficiency and look at performance factors as well. Chapters look at irrigation technology, environmental conditions, and scheduling of water application. One section of the book focuses on water management in the cultivation of sugarcane, a very important industrial crop used in many fields. Other sections are devoted to principles and challenging technologies, water use efficiency for drip-irrigated crops, performance of fertigated rice under micro irrigation, and evaluation of performance of drip-irrigated crops. This valuable book is a must for those struggling to find ways to address the need to maintain efficient crop production in the midst of water shortages. With chapters from hands-on experts in the field, the book will be an invaluable reference and guide to effective micro irrigation methods.
Humans generate millions of tons of waste every day. This waste is rich in water, nutrients, energy and organic compounds. Yet waste is not being managed in a way that permits us to derive value from its reuse, whilst millions of farmers struggle with depleted soils and lack of water. This book shows how Resource Recovery and Reuse (RRR) could create livelihoods, enhance food security, support green economies, reduce waste and contribute to cost recovery in the sanitation chain. While many RRR projects fully depend on subsidies and hardly survive their pilot phase, hopeful signs of viable approaches to RRR are emerging around the globe including low- and middle-income countries. These enterprises or projects are tapping into entrepreneurial initiatives and public private partnerships, leveraging private capital to help realize commercial or social value, shifting the focus from treatment for waste disposal to treatment of waste as a valuable resource for safe reuse. The book provides a compendium of business options for energy, nutrients and water recovery via 24 innovative business models based on an in-depth analysis of over 60 empirical cases, of which 47 from around the world are described and evaluated in a systematic way. The focus is on organic municipal, agro-industrial and food waste, including fecal sludge, supporting a diverse range of business models with potential for large-scale out-and up-scaling.
This new book, Principles and Practices of Sustainable Micro Irrigation, is the first in the new series on micro irrigation, which offers a vast amount of knowledge and techniques necessary to develop and manage a drip/trickle or micro irrigation system. Written by experienced scientists from various parts of the world, the chapters in this book offer basic principles, knowledge, and techniques of micro irrigation management, which are essential in designing, developing, and evaluating an agricultural irrigation management system. The methods and techniques have worldwide applicability to irrigation management in agriculture. The book includes coverage of many important topics in the field, including: * An historical review of micro irrigation * The current global status of the field and its potential * Basic principles and applications * New research on chemigation and fertigation * Technologies for specific crops, such as sugar cane * Irrigation software for micro irrigation design * Affordable and low-cost micro irrigation solutions for small farms and farms in developing countries * Micro irrigation design using Hydrocalc software This book is a must for those interested in irrigation planning and management, namely, researchers, scientists, educators, and students.
This unique book focuses on remote sensing (RS) and geographical information systems (GIS) in Iraq. The environmental applications include monitoring and mapping soil salinity and prediction of soil properties, monitoring and mapping of land threats, proximal sensing for soil monitoring and soil fertility, spatiotemporal land use/cover, agricultural drought monitoring, hydrological applications including spatial rainfall distribution, surface runoff and drought control, geo-morphometric analysis and flood simulation, hydrologic and hydraulic modelling and the effective management of water resources. Also, this book assesses the impacts of climate change on natural resources using both RS and GIS, as well as other applications, covering different parts of Iraq. The book chapters include tens of maps extracted from the remotely sensed datasets, in addition to tables and statistical relations obtained from the results of the studies of the chapters' authors. These studies have been conducted in different parts of Iraq; in the north (Kurdistan region) with its mountainous and undulating lands, in western parts which have desert soils, and in central and southern Iraq where there are salty soils, dunes, wetlands, and marshes. The book is written by distinguished scientists from Iraq, China, USA, Italy, Iran, Germany, and the Czech Republic who are interested in the Iraqi environment. The book is therefore a useful source of information and knowledge on Iraqi environment for graduate students, researchers, policy planners, and stakeholders in Iraq as well as similar regions. |
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