卫星之眼“瞰变化” 解码中国生态“绿色密码”

Group 1 - The article highlights the significant ecological improvements in China's environment, particularly through satellite observations of regions like Baiyangdian and Saihanba [1][3][8] - Baiyangdian, the largest freshwater lake in North China, has seen its wetland area expand due to ecological water replenishment from the South-to-North Water Diversion Project, with water quality reaching its best level since monitoring began in 1988 [3][5] - The ecological recovery is reflected in local biodiversity, with Baiyangdian now home to 295 species of wild birds and an increase in wild fish species to 48 by 2024 [5] Group 2 - Saihanba, located near Beijing, has transformed from barren land to a forested area over 60 years, serving as a model for desertification control globally [6][8] - Satellite data from 1999 to 2020 indicates a significant increase in forest coverage in the Saihanba area, contributing to ecological protection for the Beijing-Tianjin region [8]