湖北农业科学2025，Vol.64Issue(9)：44-50,55,8.DOI:10.14088/j.cnki.issn0439-8114.2025.09.008
基于阈值法确定湖北省建设项目耕地占用比例上限
Determination of the upper limit for the proportion of cultivated land occupied by construction projects in Hubei Province based on threshold method
摘要
Abstract
In order to determine the upper limit for the proportion of cultivated land occupied by construction projects in different geo-morphological zones,and to provide a basis for cultivated land protection and land use approval,Hubei Province was selected as the study area,and its land use data for three types of projects,namely,transport,water conservancy and energy,were collected from 2013 to 2022,and the geomorphology was divided according to plains,hills and mountains.The quartiles were used as threshold pa-rameters to analyse the proportion of cultivated land occupied by each type of project in different geomorphological zones,determine the reasonable upper limit and calculate the saving rate.The results showed that there were obvious differences in the cultivated land occupation for the three types of projects in different geomorphological zones in Hubei Province.The area of cultivated land occupied by transportation was the highest(the proportion of 89.48%),and the spatial distribution showed a decreasing gradient of plains(68.3%)>hills(21.33%)>mountains(10.37%).Based on the quantile threshold method,the upper limit for the proportion of cultivat-ed land occupied by the energy in the plains area reached 99.19%,while that of the mountainous water conservancy category was only 40.17%.The validation of the planning project showed that the maximum saving rate of 12.76%of cultivated land could be achieved while ensuring an approval rate of 78.05%or higher for most projects.In conclusion,the upper limit for the proportion of cultivated land occupied by construction projects determined by the threshold method could effectively control the cultivated land occupation.It was recommended to take 70%-90%as the reference threshold for the upper limit of the proportion of cultivated land occupied by vari-ous types of projects in different geomorphological zones,and select parameters in combination with specific project conditions to bal-ance protection and development,so as to provide a decision-making basis for solving the contradiction between cultivated land protec-tion and construction occupancy in Hubei Province.关键词
建设项目/耕地占用比例上限/阈值法/耕地保护/湖北省Key words
construction projects/cultivated land occupation ratio limits/threshold method/cultivated land conservation/Hubei Province分类
管理科学引用本文复制引用
李荆荆,黄凡,祝君君,李彦丹,雷杨,李金欣,匡颖..基于阈值法确定湖北省建设项目耕地占用比例上限[J].湖北农业科学,2025,64(9):44-50,55,8.基金项目
湖北省自然资源厅科技项目(ZRZY2024KJ20) （ZRZY2024KJ20）
