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以“生态灌溉”的思路研究秦王川干旱灌区苜蓿草地土壤水盐运移规律及其生态灌溉调控模式;苜蓿在水盐等逆境胁迫下的生理生态特征、生育阶段水分生产函数及生态灌溉制度;应用系统工程方法对灌区苜蓿(M ed icago sativa)种植结构及经济效益进行优化配置;构建灌溉水-光合作用-生
Taking the idea of “ecological irrigation” as an example, the law of soil water and salt transport and the regulation mode of ecological irrigation in alfalfa grassland in Qinwangchuan irrigation area; the physiological and ecological characteristics of alfalfa in response to water stress and salt stress, the water production function during the growth period and the ecological irrigation system; Systematic methods were applied to optimize the planting structure and economic benefits of M ed icago sativa in irrigation area. The irrigation water-photosynthesis-biology