학술논문
景电灌区主要作物不同节水灌溉模式效益综合分析 / A Comprehensive Analysis of the Benefits of Different Water-saving Irrigation Modes for Main Crops in Jingdian Irrigation District
Document Type
Academic Journal
Author
Source
中国农村水利水电 / China Rural Water and Hydropower. (1):70-74
Subject
Language
Chinese
ISSN
1007-2284
Abstract
景电灌区是以农业经济为主的高扬程跨流域灌区,干旱缺水成为制约农作物高产稳产的主要因素,节水灌溉技术在景电灌区得到大力推广,合理的节水灌溉方式可以节约用水,提高单方水效益,有利于推进水资源集约节约利用和建设节水型灌区.如何科学合理地选择节水灌溉模式是目前迫切需要研究的问题.基于熵值法,从社会经济效益、生态环境效益等方面构建节水灌溉效益评价体系,对灌区主要作物进行了不同节水灌溉模式的效益分析.结果表明,高效节水灌溉效益普遍高于其他灌溉方式,而滴灌模式则是该地区最优节水灌溉模式.评价结果与实际基本一致,说明这种方法应用到灌区中评价效益是可行的,对灌区的综合评价具有指导意义.
Jingdian Irrigation Area is a high-lift cross-basin irrigation area with agricultural economy as the main,drought and water short-age have become the main factors restricting the high and stable yield of crops,water-saving irrigation technology has been popularized in Jingdian Irrigation Area,reasonable water-saving irrigation can save water,improve unilateral water efficiency,it is beneficial to promote the intensive and economical utilization of water resources and the construction of water-saving irrigation area.This paper is based on the en-tropy method,the evaluation system of water-saving irrigation benefit is constructed from the aspects of social economic benefit and ecologi-cal environmental benefit,the benefits of different water-saving irrigation modes for the main crops in irrigated areas are analyzed.The re-sults show that the efficiency of efficient water-saving irrigation is generally higher than other irrigation methods,drip irrigation is the best water-saving irrigation mode in this area.The evaluation results are basically consistent with the reality,it shows that this method is feasible to evaluate the benefit in irrigated areas,so it has a guiding significance to the comprehensive evaluation of irrigated areas.
Jingdian Irrigation Area is a high-lift cross-basin irrigation area with agricultural economy as the main,drought and water short-age have become the main factors restricting the high and stable yield of crops,water-saving irrigation technology has been popularized in Jingdian Irrigation Area,reasonable water-saving irrigation can save water,improve unilateral water efficiency,it is beneficial to promote the intensive and economical utilization of water resources and the construction of water-saving irrigation area.This paper is based on the en-tropy method,the evaluation system of water-saving irrigation benefit is constructed from the aspects of social economic benefit and ecologi-cal environmental benefit,the benefits of different water-saving irrigation modes for the main crops in irrigated areas are analyzed.The re-sults show that the efficiency of efficient water-saving irrigation is generally higher than other irrigation methods,drip irrigation is the best water-saving irrigation mode in this area.The evaluation results are basically consistent with the reality,it shows that this method is feasible to evaluate the benefit in irrigated areas,so it has a guiding significance to the comprehensive evaluation of irrigated areas.