Predicting Rainfall Erosion Losses

Predicting Rainfall Erosion Losses PDF Author: Walter H. Wischmeier
Publisher:
ISBN:
Category : Agricultural conservation
Languages : en
Pages : 70

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Book Description
The Universal Soil Loss Equation (USLE) enables planners to predict the average rate of soil erosion for each feasible alternative combination of crop system and management practices in association with a specified soil type, rainfall pattern, and topography. When these predicted losses are compared with given soil loss tolerances, they provide specific guidelines for effecting erosion control within specified limits. The equation groups the numerous interrelated physical and management parameters that influence erosion rate under six major factors whose site-specific values can be expressed numerically. A half century of erosion research in many States has supplied information from which at least approximate values of the USLE factors can be obtained for specified farm fields or other small erosion prone areas throughout the United States. Tables and charts presented in this handbook make this information readily available for field use. Significant limitations in the available data are identified.

Predicting Rainfall Erosion Losses

Predicting Rainfall Erosion Losses PDF Author: Walter H. Wischmeier
Publisher:
ISBN:
Category : Agricultural conservation
Languages : en
Pages : 70

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Book Description
The Universal Soil Loss Equation (USLE) enables planners to predict the average rate of soil erosion for each feasible alternative combination of crop system and management practices in association with a specified soil type, rainfall pattern, and topography. When these predicted losses are compared with given soil loss tolerances, they provide specific guidelines for effecting erosion control within specified limits. The equation groups the numerous interrelated physical and management parameters that influence erosion rate under six major factors whose site-specific values can be expressed numerically. A half century of erosion research in many States has supplied information from which at least approximate values of the USLE factors can be obtained for specified farm fields or other small erosion prone areas throughout the United States. Tables and charts presented in this handbook make this information readily available for field use. Significant limitations in the available data are identified.

National Engineering Handbook

National Engineering Handbook PDF Author: United States. Soil Conservation Service
Publisher:
ISBN:
Category : Flood control
Languages : en
Pages : 748

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Book Description


Hydrology Handbook

Hydrology Handbook PDF Author: American Society of Civil Engineers
Publisher: Amer Society of Civil Engineers
ISBN: 9780784401385
Category : Science
Languages : en
Pages : 784

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Book Description
MOP 28 serves as a basic reference, providing a thorough, up-to-date guide for hydrologists.

Managing Agricultural Greenhouse Gases

Managing Agricultural Greenhouse Gases PDF Author: Mark Liebig
Publisher: Academic Press
ISBN: 012386898X
Category : Technology & Engineering
Languages : en
Pages : 602

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Book Description
Global climate change is a natural process that currently appears to be strongly influenced by human activities, which increase atmospheric concentrations of greenhouse gases (GHG). Agriculture contributes about 20% of the world's global radiation forcing from carbon dioxide, methane and nitrous oxide, and produces 50% of the methane and 70% of the nitrous oxide of the human-induced emission. Managing Agricultural Greenhouse Gases synthesizes the wealth of information generated from the GRACEnet (Greenhouse gas Reduction through Agricultural Carbon Enhancement network) effort with contributors from a variety of backgrounds, and reports findings with important international applications. - Frames responses to challenges associated with climate change within the geographical domain of the U.S., while providing a useful model for researchers in the many parts of the world that possess similar ecoregions - Covers not only soil C dynamics but also nitrous oxide and methane flux, filling a void in the existing literature - Educates scientists and technical service providers conducting greenhouse gas research, industry, and regulators in their agricultural research by addressing the issues of GHG emissions and ways to reduce these emissions - Synthesizes the data from top experts in the world into clear recommendations and expectations for improvements in the agricultural management of global warming potential as an aggregate of GHG emissions

USDAHL-70 Model of Watershed Hydrology

USDAHL-70 Model of Watershed Hydrology PDF Author: H. N. Holtan
Publisher:
ISBN:
Category : Hydrology
Languages : en
Pages : 92

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Book Description


Hydrologic Modeling

Hydrologic Modeling PDF Author: Vijay P Singh
Publisher: Springer
ISBN: 9811058016
Category : Science
Languages : en
Pages : 718

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Book Description
This book contains seven parts. The first part deals with some aspects of rainfall analysis, including rainfall probability distribution, local rainfall interception, and analysis for reservoir release. Part 2 is on evapotranspiration and discusses development of neural network models, errors, and sensitivity. Part 3 focuses on various aspects of urban runoff, including hydrologic impacts, storm water management, and drainage systems. Part 4 deals with soil erosion and sediment, covering mineralogical composition, geostatistical analysis, land use impacts, and land use mapping. Part 5 treats remote sensing and geographic information system (GIS) applications to different hydrologic problems. Watershed runoff and floods are discussed in Part 6, encompassing hydraulic, experimental, and theoretical aspects. Water modeling constitutes the concluding Part 7. Soil and Water Assessment Tool (SWAT), Xinanjiang, and Soil Conservation Service-Curve Number (SCS-CN) models are discussed. The book is of interest to researchers and practitioners in the field of water resources, hydrology, environmental resources, agricultural engineering, watershed management, earth sciences, as well as those engaged in natural resources planning and management. Graduate students and those wishing to conduct further research in water and environment and their development and management find the book to be of value.

Irrigation Potential in Africa

Irrigation Potential in Africa PDF Author: Karen Frenken
Publisher: Food & Agriculture Org.
ISBN: 9789251039663
Category : Irrigation
Languages : en
Pages : 196

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Book Description


What Limits Agricultural Intensification in Cambodia?

What Limits Agricultural Intensification in Cambodia? PDF Author: Kimsun Tong
Publisher:
ISBN:
Category : Agricultural credit
Languages : en
Pages : 40

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Book Description


Watershed Models

Watershed Models PDF Author: Vijay P. Singh
Publisher: CRC Press
ISBN: 1420037439
Category : Science
Languages : en
Pages : 678

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Book Description
Watershed modeling is at the heart of modern hydrology, supplying rich information that is vital to addressing resource planning, environmental, and social problems. Even in light of this important role, many books relegate the subject to a single chapter while books devoted to modeling focus only on a specific area of application. Recognizing the

Extreme Hydrology and Climate Variability

Extreme Hydrology and Climate Variability PDF Author: Assefa Melesse
Publisher: Elsevier
ISBN: 0128159995
Category : Science
Languages : en
Pages : 584

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Book Description
Extreme Hydrology and Climate Variability: Monitoring, Modelling, Adaptation and Mitigation is a compilation of contributions by experts from around the world who discuss extreme hydrology topics, from monitoring, to modeling and management. With extreme climatic and hydrologic events becoming so frequent, this book is a critical source, adding knowledge to the science of extreme hydrology. Topics covered include hydrometeorology monitoring, climate variability and trends, hydrological variability and trends, landscape dynamics, droughts, flood processes, and extreme events management, adaptation and mitigation. Each of the book's chapters provide background and theoretical foundations followed by approaches used and results of the applied studies. This book will be highly used by water resource managers and extreme event researchers who are interested in understanding the processes and teleconnectivity of large-scale climate dynamics and extreme events, predictability, simulation and intervention measures. - Presents datasets used and methods followed to support the findings included, allowing readers to follow these steps in their own research - Provides variable methodological approaches, thus giving the reader multiple hydrological modeling information to use in their work - Includes a variety of case studies, thus making the context of the book relatable to everyday working situations for those studying extreme hydrology - Discusses extreme event management, including adaption and mitigation