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Contrasting drought sensitivity of Eurasian and North American grasslands

文献类型：期刊论文

作者Yu, Qiang18,19; Xu, Chong16,17; Wu, Honghui16,17; Ke, Yuguang15; Zuo, Xiaoan14; Luo, Wentao13; Ren, Haiyan12; Gu, Qian19; Wang, Hongqiang15; Ma, Wang13
刊名NATURE
出版日期2025-01-29
卷号N/A
ISSN号0028-0836
DOI10.1038/s41586-024-08478-7
产权排序18
文献子类Article ; Early Access
英文摘要Extreme droughts generally decrease productivity in grassland ecosystems1, 2-3 with negative consequences for nature's contribution to people4, 5, 6-7. The extent to which this negative effect varies among grassland types and over time in response to multi-year extreme drought remains unclear. Here, using a coordinated distributed experiment that simulated four years of growing-season drought (around 66% rainfall reduction), we compared drought sensitivity within and among six representative grasslands spanning broad precipitation gradients in each of Eurasia and North America-two of the Northern Hemisphere's largest grass-dominated regions. Aboveground plant production declined substantially with drought in the Eurasian grasslands and the effects accumulated over time, while the declines were less severe and more muted over time in the North American grasslands. Drought effects on species richness shifted from positive to negative in Eurasia, but from negative to positive in North America over time. The differing responses of plant production in these grasslands were accompanied by less common (subordinate) plant species declining in Eurasian grasslands but increasing in North American grasslands. Our findings demonstrate the high production sensitivity of Eurasian compared with North American grasslands to extreme drought (43.6% versus 25.2% reduction), and the key role of subordinate species in determining impacts of extreme drought on grassland productivity.
URL标识查看原文
WOS关键词COORDINATED DISTRIBUTED EXPERIMENTS ; PLANT DIVERSITY ; PRODUCTIVITY ; STABILITY ; ECOSYSTEM ; BIODIVERSITY ; RESISTANCE ; RESPONSES ; ECOLOGY ; HERBIVORES
WOS研究方向Science & Technology - Other Topics
语种英语
WOS记录号WOS:001408489200001
出版者NATURE PORTFOLIO
源URL[http://ir.igsnrr.ac.cn/handle/311030/212367]  
专题生态系统网络观测与模拟院重点实验室_外文论文
通讯作者Smith, Melinda D.; Han, Xingguo
作者单位1.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing, Peoples R China
2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing, Peoples R China;
3.Northeast Forestry Univ, Key Lab Sustainable Forest Ecosyst Management, Minist Educ, Harbin, Peoples R China;
4.Xinjiang Agr Univ, Coll Grassland Sci, Key Lab Grassland Resources & Ecol Western Arid De, Minist Educ, Urumqi 830052, Xinjiang, Peoples R China;
5.Northeast Normal Univ, Jilin Prov Key Lab Ecol Restorat & Ecosyst Manage, State Environm Protect Key Lab Wetland Ecol & Veg, State Environm Protect Key Lab Wetland Ecol & Vege, Changchun 130117, Peoples R China;
6.Hebei Univ, Sch Life Sci, Baoding, Peoples R China;
7.Inner Mongolia Agr Univ, Coll Grassland Sci, Hohhot, Peoples R China;
8.Univ Utrecht, Dept Biol, Ecol & Biodivers Grp, Utrecht, Netherlands;
9.Cornell Univ, Sch Integrat Plant Sci, Soil & Crop Sci Sect, Ithaca, NY USA;
10.Univ New Mexico, Albuquerque, NM USA;
推荐引用方式
GB/T 7714		 Yu, Qiang,Xu, Chong,Wu, Honghui,et al. Contrasting drought sensitivity of Eurasian and North American grasslands[J]. NATURE,2025,N/A.
APA Yu, Qiang.,Xu, Chong.,Wu, Honghui.,Ke, Yuguang.,Zuo, Xiaoan.,...&Han, Xingguo.(2025).Contrasting drought sensitivity of Eurasian and North American grasslands.NATURE,N/A.
MLA Yu, Qiang,et al."Contrasting drought sensitivity of Eurasian and North American grasslands".NATURE N/A(2025).

入库方式： OAI收割

来源：地理科学与资源研究所

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