【摘要】 文中采用正向递推水量平衡法对重点灌区渠道水利用系数进行了计算,并在运用实测结果和计算结果相结合对各种影响因素进行综合分析的基础上,建立了渠道防渗长度比和渠系水利用系数之间的关系,由此推出全省不同地区、各类灌区及全省的渠系水利用系数,为解决全省灌区渠系渗漏损失的估算提供了新的技术路线。更多还原

【Abstract】 Using Forward Recu rsive Water Balan ce Method(FRWBM),the water efficiency of canal syste m of t ypical irrigation district is calculated a nd based on combining practical resu lts with computation results of wate r losses of canal for the comprehensive ana lysis of various effect factors,the rela tionship between ratio of canal anti s eepage length and water efficiency of canal system is set up.According to this re lationship the water efficiency of c anal system for every type of irrigation d istrict in Shanxi Province and the new technigue line is brought forward t o esti-mation the probable seepage value of canal system of the whole irrigation districts.更多还原