1992–2015全球耕地时空变化（英文）

被引：8

作者：

谈明洪 ^{[1
,2
]}

李圆圆 ^{[3
]}

机构：

[1] 中国科学院地理科学与资源研究所陆地表层格局与模拟重点实验室

[2] 中国科学院大学国际学院

[3] 中国环境科学研究院环境基准与风险评估国家重点实验室

来源：

Journal of Resources and Ecology | 2019年 / 10卷 / 03期

关键词：

全球耕地; 耕地转化; 时空变化; 经济发展水平;

D O I：

暂无

中图分类号：

F301.21 [耕地管理与保护];

学科分类号：

083306 ; 0903 ;

摘要：

人口和人均食物需求的增加对全球耕地产生了显著的影响。利用欧空局提供的精度为300m的最新土地覆被产品,文章分析了1992-2015年全球耕地的时空变化趋势和耕地转化特征。结果显示:1)在1992-2004年间全球耕地面积增长迅速,而在2004-2012年间耕地增长缓慢,2012年后耕地有缓慢减少的趋势。2)在洲尺度上,非洲耕地有一直增长的态势,而其他洲耕地都经历了耕地转型,有先增长后下降的趋势;在收入较高的国家,耕地多有下降的趋势。3)全球耕地增长的热点区域主要分布在亚马逊林地、欧亚大草原和撒哈拉沙漠边缘。全球耕地减少的中心从欧洲转移到亚洲。由于迅速的城市化,亚洲耕地扩张侵占了大量农田。

引用

页码：235 / 245

页数：11

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