青藏高原1km分辨率生态环境质量数据集（2000-2020）

青藏高原作为地球的第三极和亚洲水塔，在全球气候调节和生物多样性维护中发挥着重要作用。研制高精度的高原生态环境质量数据对当地乃至全球的可持续发展具有重要意义。作者选取植被覆盖度、生物丰度、净初级生产力、土壤盐渍化、土壤侵蚀、水源涵养、空气质量7类数据作为青藏高原生态环境质量的代表性指标，在对原始栅格数据进行异常值检验、投影转换、重采样等预处理后，将所有数据分值标准化为1-100，邀请15位生态环境领域的专家，根据AHP方法确定每个指标的权重，对各图层进行加权求和，得到青藏高原1-km分辨率生态环境质量变化数据集（2000-2020）。该数据集显示高原的生态环境质量在2000-2020年整体处于上升趋势，但存在显著的空间异质性。本栅格数据集可为青藏高原地区生态环境质量评价、生物多样性保护、社会经济建设、政府环保政绩考核等方面提供数据支持。数据集内容包括：（1）2000、2010、2020年的生态环境质量（EQI）数据；（2）2000-2020年生态环境质量变化数据。数据集存储为.tif格式，由4个文件组成，数据量为84 MB（压缩为1个文件，27.6 MB）。基于该数据集的研究论文发表在Earth’s Future。

As the Third Pole of the Earth and the Asian Water Tower, the Tibetan Plateau plays a critical role in global climate regulation and biodiversity conservation. Developing high-precision ecological environment quality data for the plateau is of great significance for the sustainable development of the local area and even the entire globe. The authors selected 7 categories of data as representative indicators of the ecological environment quality of the Tibetan Plateau, including vegetation coverage, biological abundance, net primary productivity (NPP), soil salinization, soil erosion, water conservation, and air quality. After preprocessing the original raster data through outlier detection, projection transformation, resampling and other steps, all data scores were standardized to the range of 1-100. Fifteen experts in the field of ecological environment were invited to determine the weight of each indicator using the Analytic Hierarchy Process (AHP), and a weighted summation was performed on each layer to obtain the 1-km resolution ecological environment quality change dataset of the Tibetan Plateau (2000-2020). This dataset shows that the overall ecological environment quality of the plateau exhibited an upward trend from 2000 to 2020, but with significant spatial heterogeneity. This raster dataset can provide data support for ecological environment quality assessment, biodiversity conservation, socio-economic development, government environmental performance evaluation and other aspects in the Tibetan Plateau region. The dataset includes: (1) Ecological Environment Quality Index (EQI) data for the years 2000, 2010 and 2020; (2) Ecological environment quality change data from 2000 to 2020. The dataset is stored in .tif format, consisting of 4 files with a total size of 84 MB (compressed into a single file of 27.6 MB). Research papers based on this dataset have been published in Earth’s Future.

搜集汇总

背景与挑战

背景概述

该数据集提供了青藏高原2000-2020年1km分辨率的生态环境质量数据，基于植被覆盖度、生物丰度等7个指标，通过专家权重法综合计算得出，包括2000、2010、2020年的EQI数据及变化数据。数据显示生态环境质量整体呈上升趋势但具有空间异质性，适用于生态环境评价、生物多样性保护等研究和应用，数据格式为.tif，大小为27.67 MB。