摘要
在分析大型灌区灌溉水利用系数时,考虑越级现象、回归水利用、管理水平三方面的影响,通过严密的数学推导,定量计算反映影响因素的越级修正系数、回归水利用修正系数.根据灌区管理达标情况确定管理水平修正系数,并提出了改进传统的连乘计算公式的计算方法.
In this paper, omission of some levels of canals, use of irrigation return water, and level of management are considered as factors which affect the irrigation efficiency of large size irrigation district. Quantitative expressions of coefficients representing the omission of levels of canals and use of irrigation return water are obtained through strict mathematical deduction. Coefficient representing the level of management is suggested based on the management standard reached, and an improvement is suggested to the traditional multiple multiplication method of calculating of irrigation efficiency.
出处
《武汉水利电力大学学报》
CSCD
1999年第6期28-31,共4页
Engineering Journal of Wuhan University
关键词
灌区
回归水
灌溉效率
irrigation district
return water
irrigation efficiency
