During the late 1950s in India several river valley projects were started for irrigation and power generation. One such project is the Malampuzha project, the largest irrigation project in Kerala state. The project started functioning in 1956. It was expected to cater the irrigation need of 2255...
Emergy theory and method are used to evaluate the feasibility of an irrigation improvement project in China and its contribution to local agricultural development. An emergy method for evaluating the costs and benefits of the project and a composite index named the emergy cost-benefit ratio (EmCBR...
Micro-irrigation can boost production; reduce the requirements for water, fertilizer, and labor. The practice of applying water directly to the root region decreases the water loss by conveyance, runoff, deep percolation, and evaporation. Besides this, the necessary fertilizers can be applied with ...
“the main mechanism for salt accumulation in both rivers and ground water in the central and northern parts of Faryab is by evaporative processes— including theevapotranspirationof water used for irrigation and the periodic flushing of evapoconcentrated, rainfall-borne and wind-blown salts from the...
A project Web home page, a technical course about DSS for the employers of irrigation authorities and dissemination of results (meetings, publications, reports), are also planned. 展开 关键词: Remote sensing Geographic information systems Irrigation Droughts Soils ...
Water meters implemented in urban gardens can improve irrigation efficiency, reduce crop mortality, and redesign garden systems for future harsher climate conditions46. Residents are also adapting to climate change using existing infrastructure and technologies already in hand for microscale adaptation. For...
In this work, the efficiency of water markets in an irrigation district is put under consideration. This efficiency is referred to the private economic losses arising from a reduction in the availability of water, so the most efficient or optimal allocation will be the one that minimizes these ...
Irrigation water withdrawal was reported by only two IAMs (MAgPIE and GLOBIOM); values were not reported for the other two IAMs. Bottom right, global changes in nitrogen fertilizer use. Nitrogen fertilizer use was reported by only three IAMs (MAgPIE, GLOBIOM and IMAGE); values were not ...
The indirect impact on groundwater, caused by the change of irrigation demand and irrigation water sources through climate variability, is more significant than its direct impact (Taylor et al., 2013b). The Intergovernmental Panel on Climate Change report published in 2012 indicates that the ...
shelterbeltsare commonly established as an element of anagroforestry system. Shelterbelts are often designed to facilitate irrigation and mechanization of agricultural practices and arranged in a manner to provide the associated agriculturalcrops protectionfrom prevailing winds (Figure 11.12). Shelterbelts ...