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Positive legacies of severe droughts in the Inner Mongolia grassland

文献类型：期刊论文

作者Sun, Jiamei; Liu, Wei; Pan, Qingmin; Zhang, Bin1; Lv, Yaxiang; Huang, Jianhui; Han, Xingguo
刊名SCIENCE ADVANCES
出版日期2022
卷号8期号:47
ISSN号2375-2548
DOI10.1126/sciadv.add6249
文献子类Article
英文摘要Global change-induced extreme droughts are increasing in grasslands worldwide, and drought legacies may greatly affect the responses of grassland ecosystems to these changes. However, it remains poorly understood whether and howsevere droughts have a positive legacy effect on grassland productivity. By combining a 4-year precipitation manipulation experiment with a 40-year observational study in a semiarid grassland, we showed that extreme droughts could create strong positive legacies on community productivity and that such legacies could last for multiple years. The mechanism behind thiswas the coupled effect of the drought-induced increase in annuals and the favorable precipitation pattern that facilitated the flourishing of annuals in subsequent years. This study provides experimental and observational evidence for positive drought legacies and reveals their underlying mechanisms. Our findings suggest that positive drought legacies should be incorporated into Earth system models to better predict the impact of extreme droughts on grassland ecosystems.
学科主题Multidisciplinary Sciences
出版地WASHINGTON
WOS关键词ECOSYSTEM STABILITY ; PERENNIAL PLANTS ; USE EFFICIENCY ; PRECIPITATION ; PRODUCTIVITY ; RAINFALL ; WATER ; AVAILABILITY ; RESISTANCE ; DYNAMICS
WOS研究方向Science Citation Index Expanded (SCI-EXPANDED)
语种英语
WOS记录号WOS:000968162100025
出版者AMER ASSOC ADVANCEMENT SCIENCE
资助机构National Natural Science Foundation of China [31870517, 32230069] ; Strategic Priority Research Program of Chinese Academy of Sciences [XDA26020101]
源URL[http://ir.ibcas.ac.cn/handle/2S10CLM1/28783]  
专题植被与环境变化国家重点实验室
作者单位1.Chinese Acad Sci, State Key Lab Vegetat & Environm Change, Inst Bot, Beijing 100093, Peoples R China
2.Inner Mongolia Agr Univ, Coll Grassland Resources & Environm, Hohhot 010018, Peoples R China
推荐引用方式
GB/T 7714		 Sun, Jiamei,Liu, Wei,Pan, Qingmin,et al. Positive legacies of severe droughts in the Inner Mongolia grassland[J]. SCIENCE ADVANCES,2022,8(47).
APA Sun, Jiamei.,Liu, Wei.,Pan, Qingmin.,Zhang, Bin.,Lv, Yaxiang.,...&Han, Xingguo.(2022).Positive legacies of severe droughts in the Inner Mongolia grassland.SCIENCE ADVANCES,8(47).
MLA Sun, Jiamei,et al."Positive legacies of severe droughts in the Inner Mongolia grassland".SCIENCE ADVANCES 8.47(2022).

入库方式： OAI收割

来源：植物研究所

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