Spatiotemporal patterns and drivers of cultivated land conversion in Inner Mongolia Autonomous Region,northern China  

作　　者：Xijiri ZHOU Ruiping BAO Baorong Burenjirigala 

机构地区：[1]College of Geographical Science,Inner Mongolia Normal University,Hohhot 010022,China [2]Dongsheng District Sub-bureau of Ordos Natural Resources Bureau,Ordos 017000,China [3]Chifeng University,Chifeng 024000,China

出　　处：《Journal of Arid Land》2024年第9期1197-1213,共17页干旱区科学（英文版）

基　　金：funded by the National Natural Science Foundation of China(2023SHZR0540);the National Science and Technology Support Program of China(NMTDY2021-78).

摘　　要：Protection and optimization of cultivated land resources are of great significance to national food security.Cultivated land conversion in northern China has increased in recent years due to the industrialization and urbanization of society.However,the assessment of cultivated land conversion in this area is insufficient,posing a potential risk to cultivated land resources.This study evaluated the evolution and spatiotemporal patterns of cultivated land conversion in Inner Mongolia Autonomous Region,China,and the driving factors to improve rational utilization and to protect cultivated land resources.The spatiotemporal patterns of cultivated land conversion in Inner Mongolia were analyzed using the cultivated land conversion index,kernel density analysis,a standard deviation ellipse model,and a geographic detector.Results showed that from 2000 to 2020,the trends in cultivated land conversion area and rate in Inner Mongolia exhibited fluctuating growth,with the total area of cultivated land conversion reaching 7307.59 km^(2) at a rate of 6.69%.Spatial distribution of cultivated land conversion was primarily concentrated in the Hetao Plain,Nengjiang Plain,Liaohe Plain,and the Hohhot-Baotou-Ordos urban agglomeration.Moreover,the standard deviational ellipse of cultivated land conversion in Inner Mongolia exhibited a directional southwest-northeast-southwest-northeast distribution,with the northeast-southwest direction identified as the main driving force of spatial change in cultivated land conversion.Meanwhile,cultivated land conversion exhibited an increase-decrease-increase change process,indicating that spatial distribution of cultivated land conversion in Inner Mongolia became gradually apparent within the study period.The geographic detector results further revealed that the main driving factors of cultivated land conversion in Inner Mongolia were the share of secondary and tertiary industries and per-unit area yield of grain,with explanatory rates of 57.00%,55.00%,and 51.00%,respectively.Additionally,improved

关 键 词：cultivated land conversion spatiotemporal variation standard deviation elliptical models geographic detector northern China 

分 类 号：F323.211[经济管理—产业经济] TU982.2[建筑科学—城市规划与设计]