河南省农田水利现代化水平评价与时空演变

Evaluation and Temporal and Spatial Evolution of Farmland Water Conservancy Modernization Level in Henan Province

河南是我国重要的粮食生产核心区,提升河南农田水利现代化水平,对保障粮食安全和国家安全有着重要意义。按照灌溉排水、管理技术、生态环境、经济效益和发展支撑五个方面划分出主体指标5个,分指标18个,构成河南省农田水利现代化水平综合评价指标体系。基于熵权模型和空间分析方法采用2015年至2019年连续五年的数据对河南省农田水利现代化水平的时空演变进行分析。研究结果表明:从综合水平上看,灌溉排水水平的指标权重最大,地级市中周口市的农田水利现代化水平最高,济源市最低。从空间分布上看,河南省农田水利现代化水平在空间上的分布具有显著的空间正相关性且空间异质性较小,“不显著”类型区占主导地位(超过50%),HH与LL类型区共计占35%左右。从地形地貌上看,平原地区的农田水利现代化水平普遍高于丘陵地区。现阶段河南农田水利现代化水平只有周口市、漯河市和鹤壁市达到了初步现代化阶段,其余地区还处于有待加强阶段。

Henan is an important core area of grain production in China. Improving the modernization level of farmland and water conservancy in Henan is of great significance to ensure food security and national security. According to the five categories of irrigation and drainage,management technology,ecological environment,economic benefits and development support,this paper divides five main indicators and 18sub-indicators,which constitute the comprehensive evaluation index system of farmland water conservancy modernization level in Henan Province. Based on the entropy weight model and spatial analysis method,the spatial-temporal evolution of farmland water conservancy modernization level in Henan Province is analyzed by using the data of five consecutive years from 2015 to 2019. The results show that from the comprehensive level,the index weight of irrigation and drainage level is the largest. Among prefecture level cities,Zhoukou has the highest level of farmland water conservancy modernization,while Jiyuan has the lowest level. From the perspective of spatial distribution,the spatial distribution of farmland water conservancy modernization level in Henan Province has a significant spatial positive correlation and small spatial heterogeneity. The“insignificant”type area is dominant(more than 50%),and the HH and ll type areas account for about 35%. In terms of landform,the modernization level of farmland water conservancy in plain areas is generally higher than that in hilly areas. At present,only Zhoukou district,Luohe district and Hebi district have reached the preliminary modernization stage,and the rest of Henan is still in the stage to be strengthened.