Download or read book Development of Irrigation Coefficients in the Transition Zone written by Cory Cleveland Ketchum and published by . This book was released on 2022 with total page 63 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Simulating Energy Balance and Hydrologic Cycle in a Desert oasis Transitional Zone Using RZWQM2 written by Che Liu and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: "The simulation of energy balance is essential to define soil water and heat flux, and quantifying crop water demand and optimizing irrigation management practices are critical to water resource management in extremely arid desert oases. The objectives of this study were (i) to evaluate the performance of RZWQM2 in simulating energy balance in bare soil ground in the desert-oasis transitional zone thus evaluate the relationship between precipitation and groundwater recharge; (ii) to develop an optimal irrigation scheme for cotton planted in this area using the RZWQM2 model being calibrated against soil moisture content, cotton growth stage, and cotton yield. This study took an irrigated agricultural field in an extremely arid oasis transition zone in Cele, Xinjiang, northwest of China as a research site, and the revised hybrid RZWQM2 model was evaluated in simulating energy balance components, soil water content in different soil layers, crop growth stages and yield under desert climate. The energy balance components were measured on a bare soil near the cotton planting field. The model performed well in simulating total shortwave radiation (Ts) and net radiation (Rn), with coefficient of determination (R2) > 0.93, model efficiency (ME) > 0.80 and percent bias (PBIAS)
Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1991 with total page 804 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Selected Water Resources Abstracts written by and published by . This book was released on 1991 with total page 816 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book River Basin Management in the Twenty First Century written by Victor Roy Squires and published by CRC Press. This book was released on 2014-07-10 with total page 544 pages. Available in PDF, EPUB and Kindle. Book excerpt: Worldwide development of agriculture and industry creates burgeoning demands on natural resources. Management of the rivers and the surrounding landscape is one of the important tasks for today and for the foreseeable future. Lessons learned from centuries of management (and mismanagement) have been distilled into principles and practices which form the subject matter for this book. It provides both a global perspective and an entrée to the special problems associated with management of transboundary rivers.
Download or read book Journal of the Irrigation and Drainage Division written by American Society of Civil Engineers. Irrigation and Drainage Division and published by . This book was released on 1979 with total page 944 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Arid Lands Water Evaluation and Management written by Robert Maliva and published by Springer Science & Business Media. This book was released on 2012-06-09 with total page 1068 pages. Available in PDF, EPUB and Kindle. Book excerpt: A large part of the global population lives in arid lands which have low rainfall and often lack the water required for sustainable population and economic growth. This book presents a comprehensive description of the hydrogeology and hydrologic processes at work in arid lands. It describes the techniques that can be used to assess and manage the water resources of these areas with an emphasis on groundwater resources, including recent advances in hydrologic evaluation and the differences between how aquifer systems behave in arid lands versus more humid areas. Water management techniques are described and summarized to show how a more comprehensive approach to water management is required in these areas, including the need to be aware of cultural sensitivities and conditions unique to many arid regions. The integration of existing resources with the addition of new water sources, such as desalination of brackish water and seawater, along with reusing treated wastewater, will be required to meet future water supply needs. Also, changing climatic conditions will force water management systems to be more robust so that future water supply demands can be met as droughts become more intense and rainfall events become more intense. A range of water management techniques are described and discussed in order to illustrate the methods for integrating these measures within the context of arid lands conditions.
Download or read book An Introduction to Hydraulics of Flood Control Channels for Professional Engineers written by J. Paul Guyer, P.E., R.A. and published by Guyer Partners. This book was released on 2024-06-08 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introductory technical guidance for professional engineers interested in flood water protection. Here is what is discussed: 1. INTRODUCTION, 2. HYDRAULIC DESIGN ASPECTS, 3. FLOW THROUGH BRIDGES, 4.TRANSITIONS, 5. SPECIAL CONSIDERATIONS, 6. STABLE CHANNELS.
Download or read book Productivity Growth in Agriculture written by Keith Owen Fuglie and published by CABI. This book was released on 2012 with total page 390 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume is written primarily for agricultural economists doing research on productivity. It includes discussions of the theoretical underpinnings of productivity measurement as well as the many practical considerations that go into translating this theory into actual measures of aggregated outputs and inputs. The unifying concept of agricultural productivity used across the chapters of this volume is aggregate total factor productivity (TFP) of the sector. The volume also contains detailed analysis of the underlying causes of agricultural productivity growth. Part I (chapters 2-6) examines agricultural productivity in high-income and transition countries. Part II (chapters 7-11) examines agricultural productivity growth and its driving forces in five important agricultural producers in Asia and Latin America. Part III (chapters 12-14) focuses on measuring and identifying constraints to agricultural productivity growth in sub-Saharan Africa. Part IV (chapters 15-16) gives a global perspective on agricultural productivity.
Download or read book Land Use Transitions and Rural Restructuring in China written by Hualou Long and published by Springer Nature. This book was released on 2020-05-27 with total page 577 pages. Available in PDF, EPUB and Kindle. Book excerpt: Intended as a comprehensive guide to the study of land use and rural development, this book offers detailed descriptions of land use transitions and rural restructuring. To do so, it chiefly focuses on three main aspects, the first of which is the application of geographical perspectives in order to understand rural issues in connection with urbanization, industrialization, globalization and rural vitalization strategies in contemporary China. Secondly, it presents a rich blend of regional and national analyses; detailed explorations of local cases; and critical and theoretically informed discussions that address historical paths and future projections. Lastly, it adapts concepts derived from western literature to situations and experiences in rural China, and provides empirical evidence from an “insider” perspective. Given its scope, the book offers a valuable resource for researchers, and for graduate students / courses in geography and sociology.
Download or read book Biology Bulletin of the Academy of Sciences of the USSR written by Akademii︠a︡ nauk SSSR. and published by . This book was released on 1978 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Applied Mechanics Reviews written by and published by . This book was released on 1948 with total page 630 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ground Water Quality Protection written by Deborah Fairchild and published by CRC Press. This book was released on 1987-05-01 with total page 596 pages. Available in PDF, EPUB and Kindle. Book excerpt: This new book provides a sound summary of the rapidly expanding body of knowledge on ground water pollution sources, evaluation and control. It is used to plan and implement ground water quality management programs, and also may be used as a text. The first three (introductory) chapters are about ground water quality, its importance, its management, and information sources.
Download or read book Water Relations of Plants and Soils written by Paul J. Kramer and published by Academic Press. This book was released on 1995-07-28 with total page 513 pages. Available in PDF, EPUB and Kindle. Book excerpt: Water Relations of Plants and Soils, successor to the seminal 1983 book by Paul Kramer, covers the entire field of water relations using current concepts and consistent terminology. Emphasis is on the interdependence of processes, including rate of water absorption, rate of transpiration, resistance to water flow into roots, soil factors affecting water availability. New trends in the field, such as the consideration of roots (rather than leaves) as the primary sensors of water stress, are examined in detail. - Addresses the role of water in the whole range of plant activities - Describes molecular mechanisms of water action in the context of whole plants - Synthesizes recent scientific findings - Relates current concepts to agriculture and ecology - Provides a summary of methods
Download or read book Transactions Congress on Irrigation and Drainage written by and published by . This book was released on 1972 with total page 714 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vols. for 2002 accompanied by CD-ROM containing v.2 of the congress, and another CD-ROM containing the work of the 18th congress.
Download or read book Geological Survey Professional Paper written by and published by . This book was released on 1974 with total page 378 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Guidelines for Predicting Crop Water Requirements written by J. Doorenbos and published by . This book was released on 1975 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt: Calculation of crop evapotranspiration; Selection of crop coeficient; Calculation of field irrigation requirements.
