Managing Water on China's Farms: Institutions, Policies and the Transformation of Irrigation under Scarcity is a comprehensive and current look at the water shortage problems in China. While China has emerged as a major player in the world economy, water is the most critical factor that limits the country's further growth. China's growing water problems also have a large impact worldwide, with public health as well as economic impacts. If China were to rely heavily on food produced outside of China, the massive volume of food imports would raise food prices internationally. This book examines a series of water issues, beginning with a description of the water shortage problems in China, particularly in the northern part of the country. It then looks at the government and farmers' responses and whether past policies have been effective in resolving the water problems. Managing Water on China's Farms documents the change of existing and new water management institutional forms over time and across provinces throughout northern China, and then assesses the impacts of these changes in the rural sector. Finally, it examines potential solutions that the research has uncovered, answering the question: Who can build the bridge over China's troubled waters? Using analyses from information collected firsthand in China's rural villages, the series of surveys covers diverse geographic regions that are representative of north China and includes perspectives from multiple stakeholders such as village leaders, water managers, and farmers. The policy-oriented research and rich analysis in this book make it of interest to both policy makers and researchers with a focus on China water problems. This book can also be used in a Master or Ph.D. level resource economics course.

This collection features four peer-reviewed literature reviews on soil health indicators. The first chapter describes indicators and frameworks for soil health currently in use. It evaluates the principles underpinning current approaches to monitoring soil quality/health and shows these principles have been applied in the development of a practical soil health toolkit for use by UK farmers. The second chapter reviews the range of physical, chemical and biological indicators of soil health and how they can be used in practice. It focusses on measuring soil health in organic vegetable cultivation and, in particular, ways of measuring the effects of adding organic amendments to improve soil health. The third chapter discusses key issues in soil organic carbon (SOM) modelling and the development of increasingly sophisticated, dynamic SOM models. It looks at the role of SOM models in improving soil health monitoring and developing decision support tools for farmers The final chapter reviews current challenges in collecting more systematic and reliable data on earthworm communities, including issues in identifying different earthworm groups. It includes a case study on developing a robust method for accurate measurement of earthworm communities in soil in assessing and improving soil health.

Microirrigation has become the fastest growing segment of the irrigation industry worldwide and has the potential to increase the quality of food supply through improved water fertilizer efficiency. This book is meant to update the text "Trickle Irrigation, Design, Operation and Management." This text offers the most current understanding of the management criteria needed to obtain maximum water and fertilization efficiency.
* Presents a detailed explanation of system design, operation, and management specific to various types of MI systems
* Analyzes proper use of irrigation technology and its effect to increase efficiency
* Provides an understanding to the basic science needed to comprehend operation and management
* Over 150 figures of designs and charts of systems including, surface drip, subsurface drip, spray/microsprinkler, and more

This book takes stock of micro irrigation systems (MIS), the technological intervention in India's agricultural and water management sectors, over the past couple of decades. Based on empirical research from the major agriculturally dynamic states, viz., Gujarat, Rajasthan, Maharashtra, Tamil Nadu, Andhra Pradesh and Karnataka, the book provides a nuanced understanding and objective assessment of the implementation and adoption of MIS across these states. It addresses several of the questions related to adoption and impacts of MIS in India. On the adoption side, the key question that the book addresses is which segment of the farming community adopts MIS across states? The impacts analysed include those on physical, agronomic and economic aspects. At the macro level, the question being asked is about the future potential of MIS in terms of saving water from agriculture and making more water available for environment. The book also addresses the question of the positive/negative externalities and real social benefits and costs from the use of MIS, a major justification for heavy capital subsidies for its purchase by farmers. It also brings out certain critical concerns pertaining to MIS adoption, which need to be addressed through more empirical research based on longitudinal panel/ cross sectional data. The book would be of great use to researchers (agricultural water management, irrigation economics), students of water resource engineering, irrigation engineering and water resources management, as well as to policy makers and agricultural water management experts - national and international.

We must enhance the effectiveness ofland stewardship and management of the world's natural resources to meet a growing global population's need for conservation, sustainable development, and use of land, water, and other natural resources. Ecosystem-based, mul tiple-use land stewardship is necessary when considering the present and future uses ofland, water, and other natural resources on an operationally efficient scale. We need holistically planned and carefully implemented watershed management practices, projects, and pro grams to accommodate the increasing demand for commodities and amenities, clear water, open space, and uncluttered landscapes. An international conference in Tucson, Arizona, from March 13 to 16, 2000, examined these needs and increased people's awareness of the contributions that ecosystem-based, multiple-use watershed management can make to future land stewardship. The conference was sponsored by the School of Renewable Natural Resources, University of Arizona; the College of Agriculture, University of Arizona; the Rocky Mountain Research Station, USDA Forest Service; the Research Center for Conservation of Water Resources and Disaster Pre vention, National Chung-Hsing University, Taiwan; the Department of Forest Resources, University of Minnesota; the Center for Integrated Natural Resources and Agriculture Man agement, University of Minnesota; the Centro de Investigaciones Biologicas del Noreste, Mexico; the International Arid Lands Consortium; the USDA Natural Resources Conserva tion Service; the Bureau of Land Management of the Department of the Interior; the Salt River Project, Phoenix, Arizona; the Southern Arizona Chapter, Southwestern Section of the Society of American Foresters; and IUFRO Working Party 8. 04. 04, Erosion Control by Watershed Management."

At last, integrated management of drought on farms is dealt with in one comprehensive book. Although drought is a highly variable, near-universal natural phenomenon which has repercussions on a country's water and food supplies and many other sectors of the economy, there are many ways of avoiding, resisting and mitigating the effects of drought. Pro-active preparedness entails using the principles of risk management to upgrade the drought resistance of a farm systematically, and to have auxiliary contingency plans at the ready for use during unusually long droughts. The book provides tools for these strategies as it covers the management of water, soils, crops, rangeland, fodder and livestock, and many other drought-related topics. Audience: This book will be an important source of information for university and college staff and students in agricultural sciences, water and land use, environmental management, geography and risk management, and also farmers, agricultural advisors and policy makers.

The comprehensive and compact presentation in this book is the perfect format for a resource/textbook for undergraduate students in the areas of Agricultural Engineering, Biological Systems Engineering, Bio-Science Engineering, Water Resource Engineering, and Civil & Environmental Engineering. This book will also serve as a reference manual for researchers and extension workers in such diverse fields as agricultural engineering, agronomy, ecology, hydrology, and meteorology.

Rashda:The Birth and Growth of an Egyptian Oasis Village is an interdisciplinary study from a multi-perspective, using various kinds of data and information. It offers a comprehensive description of Rashda, a village in Dakhla Oasis in Egypt from its beginning to the present. Key concepts are the uncertainty of the water supply, the dependence on the political regime and the rational behaviour of individuals. The villagers of Rashda have dealt with the difficult natural circumstances by creating the local customs of irrigation and cultivation. The development of village recently depends ever more on the government, as long as large amounts of finance and superior technology are necessary to dig deeper wells to secure water for cultivation.

This book targets the issue of water scarcity in Egypt as a typical example of the world water crisis. Today, the available water resource is facing its limit because of rapid increase in water demand as a result of population growth and changes in peoples' life-style. The basic idea to solve the problem of water scarcity is that the irrigation sector, the biggest user of water, should increase water use efficiency. However, the real problem is how this can be achieved in view of the crucial need for water in this sector. This book addresses this challenge through case studies from the Nile delta in Egypt. The water problem in the Nile delta, the major source for water in Egypt, is discussed in this book from all its various aspects. This book covers the situation before and after the advent of the Aswan High Dam, so that the reader understands the entire development. Another special feature are the extensive and scientific descriptions of contemporary topics in water and agriculture, especially from the viewpoint of water saving and sustainability. These descriptions are based on field experiments and surveys in a six-year international research project. Topics of this book are local, but their implications are global.

A Tradition in Transition presents an in-depth assessment of the century-old Wadi Laba indigenous spate irrigation system in Eritrea. This system has relied on earthern and brushwood structures and customary water rules to support subsistence livelihoods of the Wadi Laba communities for many years. The book presents original research, which analyzes the effectiveness of contemporary water laws and a new headwork in improving production and standard of living. It also compares the lack of success of these new approaches with traditional methods of water management.

Volume 3 takes the subject of better land husbandry further. The book first points out the sort of things which have been, and are being used, but are failing to deliver what is required. It then explains the causes of erosion, the theory and practice of soil and water conservation, and practical and lasting ways to construct terraces, including such details as how to build different kinds of terrace walls. Nothing grows from the top down, as also with soil improvement. It explains in detail the way of achieving practical and sustainable soil and water conservation, practical ways in which farmers can themselves make and use practical and lasting ways to construct terraces, including such details as how to build different kinds of terrace walls.

Egypt is a country of tremendous land resources but limited water resources The area of cultivated land is only 3.2% of the gross area. The river Nile is the main sources of water. In the recent years the Governement established large-scale agricultural projects in light of food security related to the population growth. Expansion of irrigated agriculture has to be predomantly relalized bt increasing the water use efficiency. In Egypt, the dominant irrigation method is surface irrigation, which covers approximately 83% of the irrigated areas. Surface irrigation or gravity methods are generally characterized by a low efficiency. One opportunity to increase the efficiency is to convert surface irrigation to modern irrigation systems, which are generaly highly expensive for a country like Egypt. Another option to increase the efficiency of surface irrigation systems is to convert the traditional irrigation method based on continuous flow to surge flow irrigation. Surge flow irrigation is the intermittent application of water to furrows in a series of relatively short on and off time periods. This study has been carried out to demonstrate the applicability of surge flow irrigation for water saving under the short field conditions that prevail in Egypt. The results indicate that surge flow irrigation is an effective irrigation method to save water and to increase crop production.