Surface Runoff and Infiltration Processes in the Volta Basin, West Africa PDF Download
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Author: Ayodele Ebenezer Ajayi
Publisher: Cuvillier Verlag
ISBN: 3865370977
Category : Hydraulics
Languages : en
Pages : 157
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Book Description
"The study presents the analyses of field observations and simulation experiments with an event-based, two-dimensional hydrodynamic model. The model summarized the interactions between temporally dynamic rainfall, infiltration process and surface runoff in a catchment with varied soil physio-hydraulic properties, surface-roughtness, slope-lengths and vegetation structure. Both observation and simulation results indicate that the observation scale affects runoff coefficient and runoff discharge per unit area. The effect of scale is a result of spatial variability in infiltration opportunities, which vary with the slop length and distribution of saturated conductivity, leading to different trasmission losses potential during runoff routing downslope. The magnitude of the difference is influenced by surface and vegetated microtopography, which determine the flow rate"--Back cover.
Author: Ayodele Ebenezer Ajayi
Publisher: Cuvillier Verlag
ISBN: 3865370977
Category : Hydraulics
Languages : en
Pages : 157
Get Book
Book Description
"The study presents the analyses of field observations and simulation experiments with an event-based, two-dimensional hydrodynamic model. The model summarized the interactions between temporally dynamic rainfall, infiltration process and surface runoff in a catchment with varied soil physio-hydraulic properties, surface-roughtness, slope-lengths and vegetation structure. Both observation and simulation results indicate that the observation scale affects runoff coefficient and runoff discharge per unit area. The effect of scale is a result of spatial variability in infiltration opportunities, which vary with the slop length and distribution of saturated conductivity, leading to different trasmission losses potential during runoff routing downslope. The magnitude of the difference is influenced by surface and vegetated microtopography, which determine the flow rate"--Back cover.
Author: Barnabas Akurigo Amisigo
Publisher: Cuvillier Verlag
ISBN: 3865377017
Category :
Languages : en
Pages : 199
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Book Description
Author: Purna Nayak
Publisher: BoD – Books on Demand
ISBN: 953510246X
Category : Science
Languages : en
Pages : 326
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Book Description
Hydrology is the science that deals with the processes governing the depletion and replenishment of water resources of the earth's land areas. The purpose of this book is to put together recent developments on hydrology and water resources engineering. First section covers surface water modeling and second section deals with groundwater modeling. The aim of this book is to focus attention on the management of surface water and groundwater resources. Meeting the challenges and the impact of climate change on water resources is also discussed in the book. Most chapters give insights into the interpretation of field information, development of models, the use of computational models based on analytical and numerical techniques, assessment of model performance and the use of these models for predictive purposes. It is written for the practicing professionals and students, mathematical modelers, hydrogeologists and water resources specialists.
Author: Taye Kufa Obso
Publisher: Cuvillier Verlag
ISBN: 386727990X
Category :
Languages : en
Pages : 331
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Book Description
Coffea arabica, one of the economically most important crops worldwide, occurs naturally in the undergrowth of montane rainforests of Ethiopia. The study provides the first detailed ecophysiological investigations of wild coffee populations. It demonstrates the inter- and intra-regional variability in phenotypic and hydrological characteristics of wild coffee. The results reveal very different strategies of wild coffee seedlings for coping with drought stress. The ecophysiological diversity shows the importance of Ethiopian wild coffee populations as gene pools for future breeding programs, and underlines the need for an in-situ conservation strategy. The study includes recommendations for coffee forest management and the use of wild arabica coffee in Ethiopia.
Author: Bao-Le Quang
Publisher: Cuvillier Verlag
ISBN: 3865376274
Category :
Languages : en
Pages : 305
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Book Description
Author: Akmal Akramkhanov
Publisher: Cuvillier Verlag
ISBN: 3865376541
Category :
Languages : en
Pages : 139
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Book Description
Soils of irrigated lands in the Aral Sea Basin are often plagued by high salinity,hampering profitable agriculture on these soils. In this context, the present study has three specific objectives: to identify techniques that enable a rapid estimation of soil salinity, to characterize its spatial distribution and to estimate its spatial distribution based on readily obtainable environmental parametersusing a Neural Network Model Approach. Topsoil salinity was highly variable atshort distances and terrain attributes were the most influential factors. The use of relationships between environmental attributes and soil salinity for upscaling spatial distribution of soil salinity from farm to district level proved to be satisfactory. A possible application is the development of salinity prediction toolsfor farm-level decision making.
Author: Ashabul Anhar
Publisher: Cuvillier Verlag
ISBN: 3865374735
Category :
Languages : en
Pages : 131
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Book Description
Author: Carlos Javier Puig
Publisher: Cuvillier Verlag
ISBN: 3865376940
Category :
Languages : en
Pages : 181
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Book Description
Author: Nathaniel Kwamina Howard
Publisher: Cuvillier Verlag
ISBN: 3865376533
Category :
Languages : en
Pages : 175
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Book Description
Author: Syahrinudin
Publisher: Cuvillier Verlag
ISBN: 3865374816
Category : Carbon sequestration
Languages : en
Pages : 128
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Book Description
Plant biomass represents a sink for atmospheric carbon dioxide, which is one of the most important greenhouse gases and which is assumed to contribute more than half of the global warming. Establishing tree plantations or perennial crops on degraded land is an effective way to reduce atmospheric carbon by building up terrestrial carbon stocks, not only in the living biomass, but also in the soil. By converting Imperata cylindrica grassland into tree plantations (Acacia mangium or oil palm), aboveground biomass carbon can be increased about 20-fold and below ground biomass carbon up to 8-fold, while soil carbon can almost be doubled.
