北京师范大学学报（自然科学版）2025，Vol.61Issue(4)：522-529,8.DOI:10.12202/j.0476-0301.2024211
全球耕地与粮食产量的时空演变及空间格局研究
Spatiotemporal evolution and spatial pattern of global cultivated land and grain yield
摘要
Abstract
Centroid analysis and spatial displacement index analysis have been performed in this work to systematically analyze the spatiotemporal distribution,displacement,and influencing factors of global cultivated land and grain yield from 1961 to 2021.In the past nearly 60 years,the global cultivated land ownership and total grain yield have slowly increased,and entered a relatively stable platform period.The overall center of gravity of cultivated land has moved towards the southeast region,the cultivated land area in the north-south direction is more concentrated compared to the east-west direction.The uneven spatial distribution of global grain yield can easily lead to regional food shortages,posing a crisis to food security.The global grain center of gravity is shifting towards the northwest,with yield in the east-west direction being more concentrated compared to the north-south direction.The spatial consistency of global cultivated land and grain yield distribution is not high,showing a negative dislocation feature overall.Most countries around the world are in the stage of inefficient utilization of cultivated land.关键词
耕地面积/粮食产量/时空特征/空间格局Key words
cultivated land area/grain yield/spatiotemporal characteristics/spatial pattern分类
自科综合引用本文复制引用
马永欢,王楠,侯怡爽,祝培甜..全球耕地与粮食产量的时空演变及空间格局研究[J].北京师范大学学报（自然科学版）,2025,61(4):522-529,8.基金项目
自然资源部重大战略问题研究与智库建设资助项目(102121241010000001054) （102121241010000001054）
自然资源部国土开发利用形势分析与政策研究资助项目(102121201010000009001) （102121201010000009001）
