期刊
BIOSCIENCE
卷 70, 期 1, 页码 35-47出版社
OXFORD UNIV PRESS
DOI: 10.1093/biosci/biz126
关键词
global change; arid; semiarid; vulnerability; perception
类别
资金
- US Department of Energy [DE-SC-0008168]
- US Department of Defense [RC18-1322]
- US Geological Survey's Ecosystems Mission Areas
- NSF [1444755, 1457227, 1637590, 1832016, DEB1754106, 1456597, 1235828]
- Ecological Society of America
- Direct For Biological Sciences
- Division Of Environmental Biology [1457227] Funding Source: National Science Foundation
- Division Of Environmental Biology
- Direct For Biological Sciences [1456597, 1637590] Funding Source: National Science Foundation
Drylands cover 41% of the Earth's terrestrial surface, play a critical role in global ecosystem function, and are home to over two billion people. Like other biomes, drylands face increasing pressure from global change, but many of these ecosystems are close to tipping points, which, if crossed, can lead to abrupt transitions and persistent degraded states. Their limited but variable precipitation, low soil fertility, and low productivity have given rise to a perception that drylands are wastelands, needing societal intervention to bring value to them. Negative perceptions of drylands synergistically combine with conflicting sociocultural values regarding what constitutes a threat to these ecosystems. In the present article, we propose a framework for assessing threats to dryland ecosystems and suggest we must also combat the negative perceptions of drylands in order to preserve the ecosystem services that they offer.
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