摘要
综合考虑节水农业的特点及其可能对地区社会、经济和生态环境多方面的影响,按照指标筛选、降维、综合效益评价的思路提出了基于多目标评价和基于Topsis方法的节水农业综合效益评价方法。以黑龙江和平灌区近5年的节水改造、灌溉用水、作物种植、气象等资料,分析了节水农业综合效益评价的影响因素,选取了社会、经济和环境3个二级指标和22个三级指标,建立了节水农业综合效益评价指标体系。采用主成分分析法对指标进行降维,提高了评价指标体系的实用性和科学性;运用Topsis法对和平灌区进行节水农业综合效益评价,得到各年份的综合评分及其变化规律,从影响综合评分的主要因素出发分析了原因。结果表明,综合效益最高的是2016年,最低的是2012年。和平灌区节水农业综合评分随时间上升,并且逐渐趋于平稳。
Considering the characteristics of water-saving agriculture and its possible impacts on the social, economic and ecological environment in the region, a comprehensive benefit evaluation method for water-saving agriculture based on the multi-objective evaluation and the Topsis method is put forward in the light of index selection, dimension reduction and comprehensive benefit evaluation. Based on the data of water-saving transformation, irrigation water, crop planting and meteorology in the area of Heilongjiang peaceful irrigation area, the influence factors of the comprehensive benefit evaluation of water-saving agriculture were analyzed, and the social, economic and ecological three-level indicators and the 22 third-level indicators were selected. And a large-scale water-saving agriculture comprehensive benefit evaluation index system is established. The main component analysis method is adopted to measure the index. To reduce the dimension, the practicability and the scientificity of the evaluation index system are improved;the comprehensive benefit evaluation of water-saving agriculture in the peaceful irrigation area is carried out by using the Topsis method, and the comprehensive score and the changing law of each year are obtained, and the reasons are analyzed from the main factors that influence the comprehensive scoring. The results show that the most comprehensive benefit is 2016 and the lowest is in 2013. The comprehensive score of water-saving agriculture in the peaceful irrigation area increases with the time, and is gradually steady.
作者
籍欢欢
胡振华
雷波
杜丽娟
JI Huan-huan;HU Zhen-hua;LEI Bo;DU Li-juan(College of Forestry,Shanxi Agricultural University,Taigu 030800,Shanxi Province,China;China Institute of Water Resources and Hydropower Research,Beijing 100044,China;State key Laboratory of Watershed Water cycle Simulation and Regulation,Beijing 100038,China)
出处
《节水灌溉》
北大核心
2019年第4期41-45,共5页
Water Saving Irrigation
基金
"十三五"国家重点研发计划课题(2016YFC0400107)
节水灌溉效率与生境效应评价技术与方法(2016YFC0400107-2)
关键词
节水农业
综合效益评价
指标降维
TOPSIS法
Water-saving agriculture
comprehensive benefit evaluation
index dimension reduction
Topsis method
