基于非均匀分段法的农业用水水平等级确定  

Determination of Agricultural Water Use Levels Using Non-uniform Segmentation Method

作　　者：刘佩贵[1] 高静静 李伟[2] 尚熳廷 张丽静 LIU Pei-gui;GAO Jing-jing;LI Wei;SHANG Man-ting;ZHANG Li-jing(College of Civil Engineering,Hefei University of Technology,Hefei 230009,China;Nanjing Hydraulic Research Institute,Nanjing 210029,China;Beijing Zhongshui Lide Technology Development Co.,Ltd.,Linyi 276000,China)

机构地区：[1]合肥工业大学土木与水利工程学院,安徽合肥230009 [2]南京水利科学研究院,江苏南京210029 [3]北京中水利德科技发展有限公司,山东临沂276000

出　　处：《水电能源科学》2024年第12期209-212,共4页Water Resources and Power

基　　金：安徽省自然科学基金项目(2208085US07);安徽省科技重大专项(202203a07020034)。

摘　　要：农业用水水平是衡量农业综合用水效率的重要指标,以全国31个省市自治区(不包含港、澳、台)为例,借助超效率SBM模型计算农业用水效率,综合对比等分法、自然间断点分级法、均值-标准差法的原理和评价结果,利用非均匀分段法确定农业用水水平等级。结果表明,非均匀分段法确定的农业用水水平为优、良、中、差等级区间分别为(0.835,+∞)、(0.565,0.835]、(0.319,0.565]、(0,0.319],我国农业用水水平综合等级为良,且分布呈现“空间相关性”特征。该方法基本可以客观反映我国农业用水水平及各个省份之间的差异,解决了农业用水水平确定区间随用水效率发生变化的问题。Agricultural water use level is an important index to measure the comprehensive agricultural water use efficiency.In this paper,31 provinces and autonomous regions in China(excluding Hong Kong,Macao and Taiwan)were taken as examples to calculate the value of agricultural water use efficiency with the help of the super-efficiency SBM mod-el.The principles and evaluation results of equal division method,natural break point grading method and mean-standard deviation method were comprehensively compared.The non-uniform subsection method was proposed to determine the agricultural water use level.The results show that the grade ranges of excellent,good,medium and poor agricultural water use determined by non-uniform segmentation method were(0.835,+∞),(0.565,0.835],(0.319,0.565]and(0,0.319],respectively.The comprehensive grade of agricultural water use level in China was good.The spatial distribution of water use levels showed the characteristics of"spatial correlation".This method can objectively reflect agricultural water use level in China and the gap between different provinces,and solves the problem that the determination interval of agricultural water use level changes with water use efficiency.

关 键 词：非均匀分段法 农业用水水平 农业用水效率 超效率SBM模型 

分 类 号：TV93[水利工程—水利水电工程] F323.21[经济管理—产业经济]