中国农业大学学报2011，Vol.16Issue(5)：39-44,6.
北京市农作物种植结构调整与节水节肥方案优化
Adjustment of crop planting structure and optimal analysis of water and fertilizer application in Beijing
摘要
Abstract
Based on the data of planting structure of main crops in 2007,the scheme of agricultural planting structure in Beijing City was optimized and analyzed under the constraints of the application amount of chemical fertilizer, irrigation water requirement,and agricultural land resources and so on. The results indicate that the existing planting structure mode has a great adjustable space. When the application amount of chemical fertilizer was decreased by 3% - 9% based on that in 2007, annual net benefit from agricultural planting got its maximum of 37.27 × 10^8 Yuan. With the further reduction of fertilizer application amount, the annual net benefit gradually decreased. However, the annual net benefit still was greater than that in 2007 if the reduction proportion of fertilizer application amount was smaller than 15%. Within the tested range of the reduction proportion of fertilizer application amount, irrigation water requirement firstly decreased and then increased with the decrease of fertilizer application amount. When the fertilizer application amount was cut down by 11% from that in 2007, irrigation water requirement got to the minimum of 8.43 × 10^8 ms and annual net benefit also got to 99.5% of its maximum value. The schemes of 9% and 11% reductions of fertilizer application amount lower than that in 2007 are recommended respectively for maximum economic benefit and minimum irrigation water requirement from crop planting.关键词
灌溉用水量/化肥施用量/面源污染/年效益/线性规划Key words
irrigation water requirement/application amount of chemical fertilizer/non-point pollution/annual netbenefit/linear programming分类
管理科学引用本文复制引用
刘亚琼,李法虎,杨玉林..北京市农作物种植结构调整与节水节肥方案优化[J].中国农业大学学报,2011,16(5):39-44,6.基金项目
北京市科技计划项目（D07050601510000) （）
