Efficiency in the use of water for irrigation is normally defined in a physical sense - engineering and agronomic; and it is often assumed that higher efficiency is desirable. However, in an economic sense, there is an optimum range in the level of physical efficiency. Normally it can be ...
irrigationwatertechnologiesefficiency灌溉iwue IRRIGATIONTECHNOLOGIES FORWATERUSEEFFICIENCY Overview&Challenges byby PaivaMunguambe&MárioChilundoPaivaMunguambe&MárioChilundo Maputo,15Maputo,15 thth November2010November2010 IFADIFAD--RegionalRegionalWorkshopWorkshop CCentroentroInternacionalInternacionaldedeConferênciasCon...
摘要: Water use efficiency (WUE) in irrigated dairy systems has been defined, in this paper, as the amount of milk (kg milk fat plus protein) produced from pasture per megalitre of water (irrigation plus effective rainfall). Afarm survey was conducted for the 1997...
1.Effects of saline water on cucumber yields and irrigation water use efficiency under drip irrigation;微咸水滴灌对黄瓜产量及灌溉水利用效率的影响 2.Advances in assessment indicators of irrigation water use efficiency灌溉水利用效率指标研究进展 3.Data of current irrigation water use efficiency(IWUE) of...
Data of current irrigation water use efficiency(IWUE) of administrative area in China were collected and its spatial distribution is analyzed using geostatistical and spatial autocorrelation approaches. 基于全国各行政区的现状灌溉水利用效率数据,采用地质统计学及空间自相关分析方法对灌溉水利用效率的空间分布特...
The Use of Water Pricing as a Means for Enhancing Water Use Efficiency in Irrigation: Case Studies in Mexico and the United States The role of water markets in enhancing irrigation water use effi-ciency is examined. Questions arise, however, concerning equity effects of water markets. ... RG...
Effectiveness of surge flow irrigation in Egypt : water use efficiency in field crop production Egypt is a country of tremendous land resources but limited water resources The area of cultivated land is only 3.2 per cent of the gross area. The river Nile is the main sources of water. In ...
The irrigation efficiency is an importance factor which influences crop yield and water use efficiency in border irrigation.Aiming at existing problems on larger workload in evaluating irrigation efficiency,the SIRMOD model, SRFR model and field test method were separately adopted to calculate the irrig...
The increasing global population and dwindling water supplies make efficient use of irrigation water the prime priority in agricultural production. Th e importance of irrigation water efficiency is more intensified now owing to concerns about climate change, which may lead to a drier climate in the ...
Efficiency of irrigation water use: a review from the perspective of multiple disciplines. Agron. J. 105, 351-363. http://dx.doi.org/10. 2134/agronj2012.0421.Nair, S.; Johnson, J.; Wang, C. Efficiency of Irrigation Water Use: A Review from the Perspectives of Multiple Disciplines. ...