摘要
根据干旱区绿洲——民勤绿洲1985—2007年的统计资料和相关试验资料,运用灰色关联分析理论,对影响绿洲农作物水分生产力的主要因素进行了排序研究,指出灌水量是提高作物水分生产力的关键因素。依据水分生产函数概念,建立了水分生产函数模型,在此基础上,运用边际效益理论得出经济合理的灌溉定额为5 690.55 m3/hm2(379.37 m3/亩),对应的作物水分生产力为1.26 kg/m3。
According to statistics of arid oasis — Minqin in 1985—2007 and related test data,the gray relational analysis theory is used to carry out the sequencing study of major factors affecting water productivity of oasis farming crops,pointing out that the amount of irrigation water is the key factor to raise crop water productivity.Based on water production function concept,water production function model is established,on the basis of research results,the marginal benefit theory is applied in studying economic and rational irrigation norm,being 379.37 m^3/mu in corresponding to the crop water productivity of 1.26 kg/m^3.This scheme is not only of the important realist significance for improving highly-efficient water-saving agricultural development in oasis areas,but also of playing an active role in improving oasis eco-environment with extreme water shortage.
出处
《西安理工大学学报》
CAS
北大核心
2011年第3期334-338,共5页
Journal of Xi'an University of Technology
基金
国家自然科学基金资助项目(51079121)
关键词
水分生产力
水分生产函数
边际效益
干旱区
民勤绿洲
water productivity
water-production functions
marginal benefit
arid region
Minqin oasis
