Download or read book Water Accounting and Productivity at Different Spatial Scales in a Rice Irrigation System A Remote Sensing Approach written by Mohammad Mohsin Hafeez and published by Cuvillier Verlag. This book was released on 2003-07-03 with total page 176 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Water Saving Technologies written by Mobin-ud-Din Ahmad and published by IWMI. This book was released on 2007 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt: Study carried out in Punjab, Pakistan.

Download or read book Water and Nutrient Dynamics of a Humid Tropical Agricultural Watershed in Eastern Amazonia written by Bart Wickel and published by Cuvillier Verlag. This book was released on 2004 with total page 139 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Soil Characterization and Modeling of Spatial Distribution of Saturated Hydraulic Conductivity at Two Sites in the Volta Basin of Ghana written by Wilson Agyei Agyare and published by Cuvillier Verlag. This book was released on 2004 with total page 211 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book Advances in Agronomy written by and published by Academic Press. This book was released on 2014-06-27 with total page 277 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Agronomy continues to be recognized as a leading reference and a first-rate source for the latest research in agronomy. As always, the subjects covered are varied and exemplary of the myriad of subject matter dealt with by this long-running serial. Timely and state-of-the-art reviews Distinguished, well recognized authors A venerable and iconic review series Timely publication of submitted reviews

Download or read book Surface Runoff and Infiltration Processes in the Volta Basin West Africa written by Ayodele Ebenezer Ajayi and published by Cuvillier Verlag. This book was released on 2004 with total page 157 pages. Available in PDF, EPUB and Kindle. Book excerpt: "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.

Download or read book Upscaling of Land Surface Parameters Through Inverse SVAT Modeling written by Joseph D. Intsiful and published by Cuvillier Verlag. This book was released on 2004 with total page 195 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Water saving Irrigation for Rice written by Y. H. Li and published by IWMI. This book was released on 2001 with total page 133 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contributed papers presented at the workshop.

Download or read book Multiscale Analysis of Landscape Data Sets from Northern Ghana written by Nathaniel Kwamina Howard and published by Cuvillier Verlag. This book was released on 2005 with total page 175 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Geoinformatics Approach for Spatial Water Accounting and Irrigation Demand Forecasting for a Gravity Irrigation System written by Muhammad Kaleem Ullah and published by . This book was released on 2011 with total page 636 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This study developed a nodal network model for spatial water accounting and productivity analysis, including estimation of actual evapotranspiration (ET) and land use/land cover classification. It also developed and validated a remote sensing based methodology for irrigation demand forecasting that can be integrated for each node of the network and also at the system level. The selected study site of the Coleambally Irrigation Area, NSW, Australia is a demand driven irrigation system, for which water accounting and irrigation demand forecasting was carried out on 22 nodes for the 2008-09 and 2009-10 summer seasons. All water accounting parameters including inflow and outflow were measured across 22 nodes as well as at the system level."--Abstract.

Download or read book The Spatial Distribution of Soil Salinity written by Akmal Akramkhanov and published by Cuvillier Verlag. This book was released on 2005 with total page 139 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.

Download or read book Effects of Pesticides on Soil Fauna written by Marcos Garcia and published by Cuvillier Verlag. This book was released on 2004 with total page 297 pages. Available in PDF, EPUB and Kindle. Book excerpt: Duas importantes questões foram levantadas neste estudo: (1) O efeito e destino dos pesticidas em solos de regiões temperadas podem ser diferentes em solos tropicais? (2) Os dados produzidos nas regiões temperadas podem ser usados para a avaliação de risco ambiental nos trópicos?

Download or read book Multi agent System for Simulation of Land use and Land Cover Change written by Bao-Le Quang and published by Cuvillier Verlag. This book was released on 2005 with total page 305 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Forest Conversion Soil Degradation Farmers Perception Nexus written by Mekuria Argaw Denboba and published by Cuvillier Verlag. This book was released on 2005 with total page 181 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Modelling Riverflow in the Volta Basin of West Africa written by Barnabas Akurigo Amisigo and published by Cuvillier Verlag. This book was released on 2005 with total page 199 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Microsatellite Development and Application in Pigeonpea Cajanus Cajan L Millspaugh written by Damaris Achieng Odeny and published by Cuvillier Verlag. This book was released on 2006 with total page 115 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ecophysiological Diversity of Wild Arabica Coffee Populations in Ethiopia written by Taye Kufa Obso and published by Cuvillier Verlag. This book was released on 2006 with total page 331 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.