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Warmer and wetter climate promotes net primary production in C-4 grassland with additional enhancement by hay harvesting

文献类型：期刊论文

作者Jung, Chang Gyo2,3,4; Xu, Xia5; Shi, Zheng6; Niu, Shuli7,8; Xia, Jianyang9,10; Sherry, Rebecca1; Jiang, Lifen3; Zhu, Kai11; Hou, Enqing3; Luo, Yiqi2,3
刊名ECOSPHERE
出版日期2022
卷号13期号:1页码:13
关键词climate change clipping grassland hay harvesting net primary production warming experiment
ISSN号2150-8925
DOI10.1002/ecs2.3899
通讯作者Jung, Chang Gyo(cg.jung86@gmail.com)
英文摘要Grassland ecosystems provide essential services to society. To maintain ecosystem functions and services of grasslands under changing environments, it is critical to understand how grasslands respond and feedback to climate change. Here, we present results from a long-term (16 years) warming and clipping (to mimic hay harvesting or grazing) experiment conducted in a grassland ecosystem dominated by C-4 grasses in the Great Plains, USA. We analyzed responses of net primary production (NPP), aboveground NPP (ANPP), and belowground NPP (BNPP) to the expanded ranges of climate conditions observed in the experiment. NPP, ANPP, and BNPP all responded to the climatic variables nonlinearly, with higher degrees of nonlinearity for BNPP than that for ANPP. BNPP peaked at the optimum air temperature of 17.5-18.5 degrees C while ANPP peaked at the optimum air temperature of 18.5-20.0 degrees C. The optimum air temperatures for both ANPP and BNPP were higher than mean annual temperature (16.3 degrees C) at the site. The optimum precipitation for BNPP was intermediate levels (775-1250 mm) while ANPP was maximized in wetter conditions (1250-1605 mm) compared with BNPP. Clipping significantly reduced ANPP and shifted the optimum conditions for BNPP to warmer and wetter conditions. In summary, C-4-grass dominant ecosystems have the potential to increase NPP in future warmer and wetter conditions, and clipping may amplify this positive effect in this grassland ecosystem.
WOS关键词CARBON-CYCLE FEEDBACK ; TERRESTRIAL ECOSYSTEMS ; BIOMASS PRODUCTION ; GLOBAL PATTERNS ; TYPICAL STEPPE ; INNER-MONGOLIA ; USE EFFICIENCY ; PLANT-GROWTH ; PRECIPITATION ; TEMPERATURE
资助项目US National Science Foundation[DBI 0850290] ; US National Science Foundation[DEB 0444518] ; US National Science Foundation[DEB 0743778] ; US National Science Foundation[DEB 0840964] ; US National Science Foundation[EPS 0919466] ; US National Science Foundation[OIA-1301789]
WOS研究方向Environmental Sciences & Ecology
语种英语
WOS记录号WOS:000747491800026
出版者WILEY
资助机构US National Science Foundation
源URL[http://ir.igsnrr.ac.cn/handle/311030/170006]  
专题中国科学院地理科学与资源研究所
通讯作者Jung, Chang Gyo
作者单位1.Univ Oklahoma, Dept Microbiol & Plant Biol, Norman, OK 73019 USA
2.No Arizona Univ, Dept Biol Sci, Box 5640, Flagstaff, AZ 86011 USA
3.No Arizona Univ, Ctr Ecosyst Sci & Soc, Flagstaff, AZ 86011 USA
4.Univ Cent Florida, Dept Biol, Orlando, FL 32816 USA
5.Nanjing Forestry Univ, Coll Biol & Environm, Nanjing, Peoples R China
6.Univ Calif Irvine, Dept Ecol & Evolutionary Biol, Irvine, CA 92717 USA
7.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing, Peoples R China
8.Univ Chinese Acad Sci, Dept Resources & Environm, Beijing, Peoples R China
9.East China Normal Univ, Sch Ecol & Environm Sci, Tiantong Natl Forest Ecosyst Observat & Res Stn, Shanghai, Peoples R China
10.East China Normal Univ, Res Ctr Global Change & Ecol Forecasting, Shanghai, Peoples R China
推荐引用方式
GB/T 7714		 Jung, Chang Gyo,Xu, Xia,Shi, Zheng,et al. Warmer and wetter climate promotes net primary production in C-4 grassland with additional enhancement by hay harvesting[J]. ECOSPHERE,2022,13(1):13.
APA Jung, Chang Gyo.,Xu, Xia.,Shi, Zheng.,Niu, Shuli.,Xia, Jianyang.,...&Luo, Yiqi.(2022).Warmer and wetter climate promotes net primary production in C-4 grassland with additional enhancement by hay harvesting.ECOSPHERE,13(1),13.
MLA Jung, Chang Gyo,et al."Warmer and wetter climate promotes net primary production in C-4 grassland with additional enhancement by hay harvesting".ECOSPHERE 13.1(2022):13.

入库方式： OAI收割

来源：地理科学与资源研究所

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