数据集(库)目录

出版期刊|区域分类

2021年第12期
2019年第02期
数据详情

基于自然地理要素的全球土地宜垦性数据集


张成鹏1叶瑜*1方修琦1
1北京师范大学地理科学学部,北京100875

DOI:10.3974/geodb.2022.04.01.V1

出版时间:2022年4月

网页浏览次数:1017       数据下载次数:68      
数据下载量:241.52 MB      数据DOI引用次数:

关键词:

自然地理要素,全球,宜垦性,空间分异

摘要:

土地宜垦性是指土地适宜进行耕作的程度。作者基于0.5° x 0.5°栅格为评价单元,运用皮尔逊相关分析研究了全球陆地(除南极洲以外)范围内气候、土壤、地形等13个自然地理要素与现代垦殖率的相关性,分区遴选与现代垦殖率显著相关的自然地理要素,综合构建了全球土地宜垦性数据。数据结果表明,土地宜垦性强弱与垦殖率值大小的空间分布格局基本一致。即在全球主要农耕区(如东欧平原、中国华北平原、恒河平原、北美中部平原等)普遍表现出很高的垦殖强度,而在自然条件对垦殖而言相对恶劣的地区,宜垦性值普遍很低。该数据集空间数据分辨率为5′ x 5′。数据集由4个数据文件组成,以.img格式存储,数据量为38.7 MB(压缩为1个文件,3.55 MB)。

基金项目:

科学技术部(2017YFA0603304);

数据引用方式:

张成鹏, 叶瑜*, 方修琦. 基于自然地理要素的全球土地宜垦性数据集[J/DB/OL]. 全球变化数据仓储电子杂志(中英文), 2022. https://doi.org/10.3974/geodb.2022.04.01.V1.

参考文献:

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数据下载:

序号 数据名 数据大小 操作
1 GlobalCultivLandSuitability.rar 3636.98KB
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