青藏高原生境质量（2000-2020）

本数据集基于InVEST模型，运用土地利用数据、道路数据和地形数据等数据，计算得出2000年至2020年的青藏高原生境质量。数据跨度为20年，每5年提供一期数据，分辨率为1000m。其中，土地利用数据来源于全球 30 米地表覆盖精细分类产品（http://data.casearth.cn/sdo/list）。DEM数据来源于国家青藏高原科学数据中心（http://data.tpdc.ac.cn）。道路数据来源于OpenStreetMap网站（http://openstreetmap.org/）。研究结果表明：（1）2000年-2020年研究区生境质量均值呈轻微的波动趋势，空间上具有明显的异质性，呈”东南高，西北低”的空间分布格局。（2）青藏高原生境质量与地形位指数呈正相关，随着地形位的逐渐上升，生境质量均值不断增大。（3）生境质量在空间上呈现出相似值的两极集聚特征，高-高聚集区主要集中在青藏高原东南部地区；低-低聚集区分布于西北部地区。

This dataset is developed based on the InVEST model, using land use data, road data, topographic data and other auxiliary datasets to calculate the habitat quality of the Qinghai-Tibet Plateau from 2000 to 2020. The dataset spans a 20-year period, with one dataset released every 5 years, and has a spatial resolution of 1000 meters. Specifically, the land use data is derived from the global 30-meter fine land cover classification product (http://data.casearth.cn/sdo/list). DEM data is obtained from the National Tibetan Plateau Scientific Data Center (http://data.tpdc.ac.cn). Road data is sourced from the OpenStreetMap website (http://openstreetmap.org/). The research findings are summarized as follows: (1) From 2000 to 2020, the mean habitat quality of the study area exhibited a slight fluctuating trend, with significant spatial heterogeneity, following a spatial distribution pattern of "high in the southeast and low in the northwest". (2) There is a positive correlation between the habitat quality of the Qinghai-Tibet Plateau and the terrain niche index; as the terrain niche increases gradually, the mean habitat quality continues to rise. (3) The habitat quality shows spatial bipolar clustering characteristics of similar values: high-high clustering areas are mainly concentrated in the southeastern part of the Qinghai-Tibet Plateau, while low-low clustering areas are distributed in the northwestern region.

搜集汇总

背景与挑战

背景概述

该数据集基于InVEST模型，利用土地利用、道路和地形数据，生成了2000年至2020年青藏高原每5年一期的生境质量栅格数据，空间分辨率为1000米。数据结果显示，生境质量均值在时间上呈轻微波动，空间上呈现'东南高，西北低'的异质性分布格局，与地形位指数正相关，并具有高-高和低-低的两极空间集聚特征。