Fig. 3

Spatial and temporal distribution of habitat quality changes in the upper reaches of the Yangtze River, 1990–2020. This map is based on the standard map from the Ministry of Natural Resources of China (Approval Number: GS (2020) 4691), downloaded from the National Standard Map Service website (http://bzdt.ch.mnr.gov.cn/index.html) and rendered using ArcGIS 10.8 (https://www.esri.com/en-us/arcgis/about-arcgis). The base map has not been modified.