摘要
土地节约集约利用评价及其障碍因子诊断对固守耕地红线、保障国家粮食安全具有重要意义,以太湖流域为例,从建设过程和建设结果两方面构建水环境治理工程土地节约集约利用评价体系,选择信息熵改进TOPSIS模型研究太湖治理工程土地节约集约利用现状及变化趋势,并通过障碍度模型进行障碍因子诊断。研究结果表明:太湖治理工程土地节约集约综合利用水平整体随着时间的推移呈平稳上升趋势,太湖治理工程土地集约利用水平排序依次为新孟河工程(0.564 4)、新沟河工程(0.480 5)、走马塘工程(0.431 6),均处于适度利用等级(Ⅲ级),存在较大提升空间;影响太湖治理工程土地节约集约利用的障碍因子存在差异,障碍度变化各不相同,但总体呈现障碍因子集中、重要障碍因子具有较为明显共性的特点。
The evaluation of land conservation and intensive utilization and diagnosis of its obstacle factors are of great significance for adhering to the red line of cultivated land and ensuring national food security.Taking the Taihu Lake Basin as an example,an evaluation system for land conservation and intensive utilization of water environment management projects was constructed from the perspectives of construction process and construction results.The information entropy-improved TOPSIS model was used to investigate the current situation and change trend of land conservation and intensive utilization of Taihu Lake management projects,and the obstacle degree model was used to diagnose the obstacle factors.The results show that the overall level of land conservation and intensive comprehensive utilization of Taihu Lake management projects is rising steadily.The ranking of land intensive utilization of the projects is as follows:Xinmeng River project(0.5644),Xingou River project(0.4805),and Zoumatang project(0.4316),all of which belong to the moderate utilization level(GradeⅢ)with great potential for improvement.The obstacle factors affecting land conservation and intensive utilization in the Taihu Lake governance projects exhibit variations in obstacle degrees.However,they generally show characteristics of concentrated obstacle factors and obvious commonalities in important obstacle factors.
作者
沈菊琴
武钰荣
李淑琴
孙付华
刘国正
SHEN Juqin;WU Yurong;LI Shuqin;SUN Fuhua;LIU Guozheng(College of Agricultural Science and Engineering,Hohai University,Nanjing 211100,China;Yangtze Institute for Conservation and Development,Hohai University,Nanjing 211100,China;Business School,Hohai University,Nanjing 211100,China)
出处
《水利经济》
北大核心
2024年第2期7-13,64,共8页
Journal of Economics of Water Resources
基金
中央高校基本科研业务费专项资金资助项目(B200204019)
江苏省水利科技项目(2020069)。
关键词
太湖流域
土地节约集约利用
障碍因子
水环境治理工程
Taihu Lake Basin
land conservation and intensive utilization
obstacle factor
water environment management project
