干旱地区农业研究2013，Vol.31Issue(2)：122-126,5.
黄河三角洲暗管排水的综合效果评价
Comprehensive assessment of subsurface drainage construction in the Yellow River Delta
摘要
Abstract
Taking the subsurface drainage project in the Yellow River Delta as an example, we conducted financial analysis and investigation of the project performance; we analyzed the economic, ecological and social benefits. The results showed that 297 .63 hm2 salinized wasteland was reclaimed into arable land, accounting for 44.6 % of the total farmland area in the project area; more than 90% of the subsurface drained land have been desalinized. The subsurface drainage project produced remarkable economic, ecological and social benefits. For cotton production in the study area, the calculated financial net present value (FNPV) was 8099300 yuan for a discount rate of 12% , the dynamic investment pay-back period (PT) was 7.54 years; the Financial Interval Revenue Rate (FIRR) was 21.97% , which is greater than the benchmark yield of 12% . Therefore, it is beneficial to build subsurface drainage systems in the Yellow River Delta.关键词
农田排水/暗管排水/盐碱地改良/经济分析/黄河三角洲Key words
agricultural drainage/ subsurface drainage/ reclamation of saline soil/ economic analysis/ The Yellow River Delta分类
农业科技引用本文复制引用
刘文龙,罗纨,贾忠华,潘延鑫,杨玉珍,卜凡敏..黄河三角洲暗管排水的综合效果评价[J].干旱地区农业研究,2013,31(2):122-126,5.基金项目
国家"十一五"科技支撑计划项目(2009BAC55B02) （2009BAC55B02）
国家自然科学基金资助项目(51079122) （51079122）
