期刊论文

On coupling degree of cultivated land quality and productivity:A case study of Ningyuan County,Hunan Province

中文

上海国土资源

2095-1329

2022

43

2

66-72

10.3969/j.issn.2095-1329.2022.02.012

国家重点研发计划子课题（2016YFD0200809）； 2020年湖南省研究生科研创新项目（CX20200680）；

本校为第一机构

耕地质量与耕地产能耦合度研究对促进耕地高效利用、保障粮食安全具有重要意义。为探索湖南省宁远县耕地质量与耕地产能空间特征及耦合关系,采用加权求和法、逐级修正法、产量换算法计算其2019年耕地质量与耕地产能分数;利用GIS技术、耦合协调模型分析两者的空间特征、耦合协调程度。研究表明:宁远县各乡镇(街道)耕地质量等级为4~6等,耕地理论产能大致由南向北逐渐降低,耕地实际产能由中心地区向四周逐渐降低;耕地理论产能与国家利用等耦合度及耦合协调程度较高,构建的指标体系适用于耕地理论产能的测算;耕地质量与耕地实际产能耦合协调程度呈现出南高北低的分布特征,鲤溪镇、清水桥镇等产能滞后...

The coupling degree of cultivated land quality and productivity is of great significance to promote the efficient utilization of cultivated land and guarantee food security.In order to explore the spatial characteristics and coupling relationship between cultivated land quality and productivity in Ningyuan County of Hunan Province,weighted sum method,step-by-step correction method and yield conversion method were used to calculate the cultivated land quality and productivity fraction in 2019.GIS technology and coupling coordination model were used to analyze their spatial characteristics and c...