Anomalies in precipitation rather than temperature as the dominant driver of drought stress on vegetation in the Northern Hemisphere
Climate warming has substantially increased drought-induced reduction in terrestrial productivity over recent decades. However, important questions regarding the primary driver of drought stress remain controversial under the context of global warming. The period of warming hiatus between 1998 and 2...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2022-12-01
|
| Series: | Global Ecology and Conservation |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2351989422003134 |
| Summary: | Climate warming has substantially increased drought-induced reduction in terrestrial productivity over recent decades. However, important questions regarding the primary driver of drought stress remain controversial under the context of global warming. The period of warming hiatus between 1998 and 2013 provides a unique opportunity to understand the relative importance of temperature and precipitation anomalies to drought stress on terrestrial ecosystems. Here we analyzed and compared the effects of temperature, precipitation and drought stress on vegetation productivity before and over the warming hiatus period. We found that precipitation anomalies rather than temperature are the primary driver of drought and associated decreased productivity with warming in the Northern Hemisphere. Our study implied that the weight of precipitation and temperature should be adjusted when modeling the drought stress on terrestrial ecosystems under future climate warming scenarios. Data Availability: The data that support the findings of this study are openly available: ORNL DAAC (http://daac.ornl.gov;https://doi.org/10.3334/ORNLDAAC/1789); CRU (https://crudata. uea.ac.uk/cru/data/hrg/; http://doi.org/10.1002/joc.3711). |
|---|---|
| ISSN: | 2351-9894 |