农业资源与环境学报2026，Vol.43Issue(1)：65-76,12.DOI:10.13254/j.jare.2024.0528
1990-2018年四川盆地耕地利用稳定性时空分异及驱动机制分析
Analysis of the spatio-temporal differentiation and driving mechanisms of cropland utilization stability in Sichuan Basin from 1990 to 2018
摘要
Abstract
Stable utilization of cropland is crucial for maintaining stable agricultural production and ensuring national food security.However,studies on the utilization stability of cropland at the agricultural zone are still relatively few.This study assessed the utilization stability of cropland in Sichuan Basin from 1990 to 2018 using a fine-resolution land use dataset,and then analyzed the driving mechanisms behind the cropland utilization stability of Sichuan Basin with combination of natural and anthropogenic factors.The average area of unstable cropland in Sichuan Basin from 1990 to 2018 was 6.67×104 km2,amounted to 33.9%of the total.Unstable cropland was predominantly concentrated in the urban fringes,hilly regions within the basin and mountainous areas surrounding the basin.The quantity of unstable cropland in Sichuan Basin exhibited a two-wave pattern,initially declining after an increase,with a final growth rate of 8.5%.Distance to built-up land exerts the most significant influence on the utilization stability of cropland(with a relative importance of 0.28),followed by distance to water body(0.25),and climate potential productivity(0.17).This phenomenon may be attributed to the human-land relationship conflict exacerbated by rapid urbanization over the past 30 years,along with the depletion of young and middle-aged laborers.Local governments should prevent urban developers from appropriating fertile or flat cropland to compensate for less fertile or hilly areas,activate the rural cropland resources by carrying out land improvement projects,and ensure proper planning of cropland layout and cropping systems in climate-sensitive regions.关键词
耕地利用稳定性/农业区/驱动机制/时空格局/四川盆地Key words
cropland utilization stability/agricultural zone/driving mechanism/spatio-temporal pattern/Sichuan Basin引用本文复制引用
钟雨辰,黄一秦,王启,孙俊,欧定华,余吴浩淼,高雪松..1990-2018年四川盆地耕地利用稳定性时空分异及驱动机制分析[J].农业资源与环境学报,2026,43(1):65-76,12.基金项目
四川省自然科学基金项目(2025ZNSFSC0298) （2025ZNSFSC0298）
自然资源部耕地资源调查监测与保护利用重点实验室开放基金(CLRKL2024KP03) （CLRKL2024KP03）
