黄土高原植被指数时空变化数据集(2000-2022)

上传者: 31988139 | 上传时间: 2025-05-23 15:00:06 | 文件大小: 8.76MB | 文件类型: RAR
作者基于2000-2022年MOD13Q1产品、逐月气温、降水数据,2000、2010、2020年土地利用数据等,通过经验正交分解法,分离植被指数异常变化的空间区域;将植被指数异常增加区分为:强、弱人类活动干扰区。强人类活动干扰区,指2000-2010年和2010-2020年土地利用类型发生改变的地区,以及农田和建成区等人类活动强干扰区;弱人类活动干扰区,指土地利用类型未发生改变,同时植被异常增加的区域。利用残差趋势分析,量化强、弱人类活动干扰区气候变化和人类活动对植被指数动态的相对贡献率,得到黄土高原植被指数时空变化数据集。数据集内容包括:(1)研究区范围数据;(2)2000-2022年黄土高原植被指数变化空间分布数据;(3)黄土高原人类活动强弱分区数据;(4)人类活动和气候变化对黄土高原植被指数变化贡献率空间分布数据;(5)黄土高原植被指数年内最大值对应月份空间分布数据;(6)2000-2022年历年黄土高原植被指数数据;(7)2000-2022年黄土高原植被指数 异常时空系数数据。其中,栅格数据的空间分辨率为250 m x 250 m。数据集存储为.shp、.tif和.xlsx格式,由33个数据文件组成,数据量为9.56 MB(压缩为1个文件,8.76 MB)。李双双, 段生勇, 胡佳岚等. 黄土高原植被变化主导空间模态及其影响因素[J]. 地理学报, 2024, 79(7): 1768-1786.

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