Estimation Of Evapotranspiration Rates In Irrigated Lands Of The Fergana Valley Using Stable Isotopes
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Estimation Of Evapotranspiration Rates In Irrigated Lands Of The Fergana Valley Using Stable Isotopes
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Author : Gulomjon Umirzakov
language : en
Publisher: Cuvillier Verlag
Release Date : 2016-03-30
Estimation Of Evapotranspiration Rates In Irrigated Lands Of The Fergana Valley Using Stable Isotopes written by Gulomjon Umirzakov and has been published by Cuvillier Verlag this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-03-30 with Science categories.
Agriculture in Uzbekistan critically depends on water resources availability, therefore crop production, especially of cotton and winter wheat, is restricted mainly to irrigated areas. As a result of water shortage under climate change, land degradation issues in the region worsened and water use efficiency has considerably decreased over the decades. Hence, it is essential to investigate water balance parameters in irrigated lands. Environmental isotopes have been widely applied in hydrological investigations, particularly estimation of evapotranspiration rate, one of the main components of the water balance in irrigated lands. This study aims to estimate evapotranspiration rates in cotton fields by applying water stable isotopes (2H and 18O). The study is based on the field experiments conducted during the vegetation periods 2010 and 2011 in the Fergana Region of Uzbekistan. Soil for isotope analysis were sampled in a sandy field, sandy loam #1 field (rich with gypsum) and sandy loam #2 field (without gypsum). The soil water from the samples was extracted by the cryogenic extraction method. δ2H and δ18O ratios of extracted water were determined using the laser spectroscopy method. Evapotranspiration rates were estimated with the isotope mass balance model. Besides evapotranspiration estimation, this study examines the variability and characteristics of stable isotope signatures of different water sources in the study region and analyzes water extraction processes from different soil types and temporal changes of isotope signatures through the depth in irrigated cotton fields.
Integrated Water Resources Management Karlsruhe 2010
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Author : Hartwig Steusloff
language : en
Publisher: KIT Scientific Publishing
Release Date : 2010
Integrated Water Resources Management Karlsruhe 2010 written by Hartwig Steusloff and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010 with Business & Economics categories.
In dieser Arbeit werden dual-orthogonal, linear polarisierte Antennen für die UWB-Technik konzipiert. Das Prinzip zur Realisierung der Strahler wird vorgestellt, theoretisch und simulativ untersucht, sowie messtechnisch verifiziert. Danach werden Konzepte zur Miniaturisierung der Strahler dargelegt, die anschließend zum Aufbau von Antennengruppen verwendet werden. Die Vorteile der entwickelten Antennen werden praktisch anhand des bildgebenden Radars und des Monopuls-Radars gezeigt.
Bibliography Of Agriculture
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Author :
language : en
Publisher:
Release Date : 1981
Bibliography Of Agriculture written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1981 with Agriculture categories.
Bibliography Of Agriculture With Subject Index
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Author :
language : en
Publisher:
Release Date : 1979
Bibliography Of Agriculture With Subject Index written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1979 with Agriculture categories.
The Aral Sea Basin
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Author : Stefanos Xenarios
language : en
Publisher: Routledge
Release Date : 2019-09-17
The Aral Sea Basin written by Stefanos Xenarios and has been published by Routledge this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-09-17 with Science categories.
This book offers the first multidisciplinary overview of water resources issues and management in the Aral Sea Basin, covering both the Amu Darya and Syr Darya River Basins. The two main rivers of Amu Darya and Syr Darya and their tributaries comprise the Aral Sea Basin area and are the lifeline for about 70 million inhabitants in Central Asia. Written by regional and international experts, this book critically examines the current state, trends and future of water resources management and development in this major part of the Central Asia region. It brings together insights on the history of water management in the region, surface and groundwater assessment, issues of transboundary water management and environmental degradation and restoration, and an overview of the importance of water for the key economic sectors and overall socio-economic development of Central Asian countries, as well as of hydro politics in the region. The book also focusses on the future of water sector development in the Basin, including a review of local and international actors, as well as an analysis of the current status and progress towards the Sustainable Development Goals by Basin countries. The book will be essential reading for those interested in sea basin management, environmental policy in Central Asia and water resource management more widely. It will also act as a reference source for decision-makers in state agencies, as well as a background source of information for NGOs.
Irrigation Drainage And Salinity
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Author : Food and Agriculture Organization of the United Nations
language : en
Publisher:
Release Date : 1973
Irrigation Drainage And Salinity written by Food and Agriculture Organization of the United Nations and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1973 with Alkali lands categories.
Climate Change Water And Food Security
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Author : Hugh Turral
language : en
Publisher: Fao
Release Date : 2011
Climate Change Water And Food Security written by Hugh Turral and has been published by Fao this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with Agriculture categories.
The rural poor, who are the most vulnerable, are likely to be disproportionately affected.
Transport In The Atmosphere Vegetation Soil Continuum
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Author : Arnold F. Moene
language : en
Publisher: Cambridge University Press
Release Date : 2014-01-31
Transport In The Atmosphere Vegetation Soil Continuum written by Arnold F. Moene and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-01-31 with Technology & Engineering categories.
Traditionally, soil science, atmospheric science, hydrology, plant science and agriculture have been studied largely as separate subjects. These systems are clearly interlinked, however, and in recent years a great deal of interdisciplinary research has been undertaken to better understand the interactions. This textbook was developed from a course that the authors have been teaching for many years on atmosphere-vegetation-soil interactions at one of the leading international research institutes in environmental science and agriculture. The book describes the atmosphere-vegetation-soil continuum from the perspective of several interrelated disciplines, integrated into one textbook. The text is interspersed with many student exercises and problems, with solutions included. It will be ideal for intermediate to advanced students in meteorology, hydrology, soil science, environmental sciences and biology who are studying the atmosphere-vegetation-soil continuum, as well as researchers and professionals interested in the observation and modelling of atmosphere-vegetation-soil interactions.
Current Trends In Landscape Research
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Author : Lothar Mueller
language : en
Publisher: Springer Nature
Release Date : 2019-11-13
Current Trends In Landscape Research written by Lothar Mueller and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-11-13 with Science categories.
This book presents definitions, key concepts and projects in landscape research and related areas, such as landscape science and landscape ecology, addressing and characterising the international role, status, challenges, future and tools of landscape research in the globalised world of the 21st century. The book brings together views on landscapes from leading international teams and emerging authors from different scientific disciplines and regions of the globe. It describes approaches for achieving sustainability and for handling the multifunctionality of landscapes and includes international case studies demonstrating the great potential of landscape research to provide partial sustainable solutions while developing cultural landscapes and protecting semi-natural landscapes. It is intended for scientists from various disciplines as well as informed readers dealing with landscape policies, planning, evolvement, management, stewardship and conservation.
Aridity
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Author : Monique Mainguet
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-03-14
Aridity written by Monique Mainguet and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-03-14 with Science categories.
At the intersection of environmental science and human biology, this book deals with dry ecosystems, the societies so affected, and the inventiveness of those living under such conditions. It also tries to answer the question of whether long-lasting development is possible in dry environments.
