Modeling Land Use Change In The Volta Basin Of Ghana

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Modeling Land-use Change in the Volta Basin of Ghana

Ademola K. Braimoh
Modeling Land use Change in the Volta Basin of Ghana Book PDF

Author : Ademola K. Braimoh
Publisher : Cuvillier Verlag
Page : 170 pages
File Size : 40,7 Mb
Release : 2004
Category : Agriculture
ISBN : 9783865370440

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Modeling Land-use Change in the Volta Basin of Ghana by Ademola K. Braimoh Pdf

Land change studies in a 5,400km2 area within the Volta Basin of Ghana were carried out using satellite image and socio-economic analyses. The dominant change process was conversion of natural vegetation to cropland at an annual rate of 5%. Reversible land change trajectories involving accumulation of woody biomass indicate a certain level of rainfall-induced ecosystem resilience. Linear and logistic regressions identified agricultural land suitability, distance from main market and localities, child-dependency ratio and population density as the main drivers of change. Policy measures that would relieve human pressure on vegetation resources, guarantee food supply and promote commercialization of agriculture are suggested.

Modeling Land Use Change in the Volta Basin of Ghana

Zoltán Sinkó
Modeling Land Use Change in the Volta Basin of Ghana Book PDF

Author : Zoltán Sinkó
Publisher : Cuvillier Verlag
Page : 149 pages
File Size : 46,6 Mb
Release : 2005
Category : Land use
ISBN : 9783865374462

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Modeling Land Use Change in the Volta Basin of Ghana by Zoltán Sinkó Pdf

Land change studies in a 5,400km2 area within the Volta Basin of Ghana were carried out using satellite image and socio-economic analyses. The dominant change process was conversion of natural vegetation to cropland at an annual rate of 5%. Reversible land change trajectories involving accumulation of woody biomass indicate a certain level of rainfall-induced ecosystem resilience. Linear and logistic regressions identified agricultural land suitability, distance from main market and localities, child-dependency ratio and population density as the main drivers of change. Policy measures that would relieve human pressure on vegetation resources, guarantee food supply and promote commercialization of agriculture are suggested.

Modelling Riverflow in the Volta Basin of West Africa

Barnabas Akurigo Amisigo
Modelling Riverflow in the Volta Basin of West Africa Book PDF

Author : Barnabas Akurigo Amisigo
Publisher : Cuvillier Verlag
Page : 199 pages
File Size : 53,9 Mb
Release : 2005
Category : Electronic
ISBN : 9783865377012

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Modelling Riverflow in the Volta Basin of West Africa by Barnabas Akurigo Amisigo Pdf

Surface Runoff and Infiltration Processes in the Volta Basin, West Africa

Ayodele Ebenezer Ajayi
Surface Runoff and Infiltration Processes in the Volta Basin West Africa Book PDF

Author : Ayodele Ebenezer Ajayi
Publisher : Cuvillier Verlag
Page : 157 pages
File Size : 45,8 Mb
Release : 2004
Category : Hydraulics
ISBN : 9783865370976

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Surface Runoff and Infiltration Processes in the Volta Basin, West Africa by Ayodele Ebenezer Ajayi Pdf

"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.

Impacts of Global Change on the Hydrological Cycle in West and Northwest Africa

Peter Speth,Michael Christoph,Bernd Diekkrüger
Impacts of Global Change on the Hydrological Cycle in West and Northwest Africa Book PDF

Author : Peter Speth,Michael Christoph,Bernd Diekkrüger
Publisher : Springer Science & Business Media
Page : 692 pages
File Size : 55,8 Mb
Release : 2010-08-12
Category : Science
ISBN : 9783642129575

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Impacts of Global Change on the Hydrological Cycle in West and Northwest Africa by Peter Speth,Michael Christoph,Bernd Diekkrüger Pdf

Africa is highly vulnerable to the impacts of climate change. In particular shortage of fresh water is expected to be the dominant water problem for West and Northwest Africa of the 21th century. In order to solve present and projected future problems concerning fresh water supply, a highly interdisciplinary approach is used in the book. Strategies are offered for a sustainable and future-oriented water management. Based on different scenarios, a range of management options is suggested with the aid of Information Systems and Spatial Decision Support Systems for two river catchments in Northwest and West Africa: the wadi Drâa in south-eastern Morocco and the Ouémé basin in Benin. The selected catchments are representative in the sense: "what can be learnt from these catchments for other similar catchments?

Soil Characterization and Modeling of Spatial Distribution of Saturated Hydraulic Conductivity at Two Sites in the Volta Basin of Ghana

Wilson Agyei Agyare
Soil Characterization and Modeling of Spatial Distribution of Saturated Hydraulic Conductivity at Two Sites in the Volta Basin of Ghana Book PDF

Author : Wilson Agyei Agyare
Publisher : Cuvillier Verlag
Page : 211 pages
File Size : 45,8 Mb
Release : 2004
Category : Hydraulics
ISBN : 9783865371003

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Soil Characterization and Modeling of Spatial Distribution of Saturated Hydraulic Conductivity at Two Sites in the Volta Basin of Ghana by Wilson Agyei Agyare Pdf

One of the key parameters in hydrological and climate change modeling is a good estimation of the soil hydrauic properties in the region of interest. This study investigates the spatial distribution and variability of soil physical properties, with emphasis on saturated hydraulic conductivity at two pilot sites in the Volta Basin of Ghana. It focuses on the potential of pedotransfer functions (PTFs) and artificial neural network (ANN) approach for estimating saturated hydraulic conductivity. Saturated hydraulic conductivity was observed to be highly spatially variable; however, it can be estimated using selected PTFs and ANN for soils in the Volta Basin based on soil parameters that can readily be obtained from detailed soil maps--From cover.

Management of Bombus Atratus Bumblebees to Pollinate Lulo (Solanum Quitoense L), a Native Fruit from the Andes of Colombia

Maria Teresa Almanza Fandiño
Management of Bombus Atratus Bumblebees to Pollinate Lulo Solanum Quitoense L a Native Fruit from the Andes of Colombia Book PDF

Author : Maria Teresa Almanza Fandiño
Publisher : Cuvillier Verlag
Page : 131 pages
File Size : 45,5 Mb
Release : 2007
Category : Electronic
ISBN : 9783867271875

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Management of Bombus Atratus Bumblebees to Pollinate Lulo (Solanum Quitoense L), a Native Fruit from the Andes of Colombia by Maria Teresa Almanza Fandiño Pdf

Solanum quitoense (Lulo) from the northern Andes is a fruit with an attractive taste. It has a high export potential but its production is hampered by insufficient pollination. Studies on the reproductive system of Lulo revealed that, due to their poricidal anthers, the flowers need pollinators for self- and cross-pollination. Pollination by native bumblebees significantly increases fruit set and quality. Experiments show that colonies of Bombus atratus can be reared in captivity and used in Lulo fields for providing increased pollination services. Modeling based on data on colony development reveal larva/workers ratio and the supply of pollen as main parameters for improving the rearing method.

The potential of oil palm and forest plantations for carbon sequestration on degraded land in Indonesia

Syahrinudin
The potential of oil palm and forest plantations for carbon sequestration on degraded land in Indonesia Book PDF

Author : Syahrinudin
Publisher : Cuvillier Verlag
Page : 128 pages
File Size : 49,5 Mb
Release : 2005
Category : Carbon sequestration
ISBN : 9783865374813

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The potential of oil palm and forest plantations for carbon sequestration on degraded land in Indonesia by Syahrinudin Pdf

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.

Reservoir Siltation in Ethiopia

Lulseged Tamene Desta
Reservoir Siltation in Ethiopia Book PDF

Author : Lulseged Tamene Desta
Publisher : Cuvillier Verlag
Page : 219 pages
File Size : 54,7 Mb
Release : 2005
Category : Reservoir sedimentation
ISBN : 9783865376381

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Reservoir Siltation in Ethiopia by Lulseged Tamene Desta Pdf