中国农业大学学报2011,Vol.16Issue(5):20-25,6.
漳卫河平原农业水资源高效利用的模拟研究Ⅱ.水分生产函数的建立及灌溉制度优化
Study on utilization of agricultural water resources with high efficiency in Zhangwei river plain Ⅱ. Crop water production function and optimal irrigation
摘要
Abstract
Optimizing the irrigation schedule of winter wheat-summer maize rotation system in Zhangwei river plain has a great significant implication in studying agricultural sustainable development of Henan province which suffered serious shortage of water resources. Based on a calibrated model-SWAT, we set up one full irrigation and nine deficit irrigations to simulate sensitivity index of Jensen model of winter wheat and summer maize. We assumed the historical scenario which under non-stress of N and P as the basic scenario, then three irrigation scenarios were set to optimize it. The results showed in comparison with the base scenario, the yield of rotation system can keep stable, 16.13% of the mean irrigation water can be saved and the mean WUE increased by 3.05% under the optimum irrigation regime. Compared with yearbook and historical scenario, the mean yield of rotation system increased by 30.76% and 6.47%, and the mean WUE of rotation system increased by 23.94%.关键词
漳卫河平原/ET/节水灌溉/生产函数/水分利用率Key words
Zhangwei river plain/ET/water saving irrigation/production function/water use efficiency分类
农业科技引用本文复制引用
潘登,任理,王英男..漳卫河平原农业水资源高效利用的模拟研究Ⅱ.水分生产函数的建立及灌溉制度优化[J].中国农业大学学报,2011,16(5):20-25,6.基金项目
国家“973”计划项目(2006CB403406,2009CB118607)致谢本课题组硕士研究生唐胜蓉在资料的收集及数据的处理上给予了帮助,谨致谢忱. ()