在地球的许多生态系统中，水是一种稀缺资源。随着气候变化，这种稀缺性可能会增加。这又可能导致植物多样性的大幅下降。利用世界各地的实验数据，一组科学家首次证明，旱地的植物生物多样性对降水的变化特别敏感。气候变化可能导致植物多样性的变化，特别是在世界干旱地区植物多样性的变化.

Less precipitation means less plant diversity

Less precipitation means less plant diversity: Climate change might lead to changes in plant diversity, especially in the world's drylands -- ScienceDaily

1. Lotte Korell, Harald Auge, Jonathan M. Chase, W. Stanley Harpole, Tiffany M. Knight. Responses of plant diversity to precipitation change are strongest at local spatial scales and in drylands. Nature Communications, 2021; 12 (1) DOI: 10.1038/s41467-021-22766-0