Drought shrinks terrestrial upland resilience to climate change
文献类型：期刊论文
| 作者 | Zheng, Yajing1; Jin, Yaguo1,6; Ma, Ruoya1; Kong, Delei1; Zhu-Barker, Xia6; Horwath, William R.6; Niu, Shuli2; Wang, Hong3; Xiao, Xin3; Liu, Shuwei1,4,5 |
| 刊名 | GLOBAL ECOLOGY AND BIOGEOGRAPHY
 |
| 出版日期 | 2020-07-30 |
| 页码 | 12 |
| ISSN号 | 1466-822X |
| 关键词 | climate change drought meta-analysis N2O respiration soil C pool soil N pool |
| DOI | 10.1111/geb.13160 |
| 通讯作者 | Liu, Shuwei(swliu@njau.edu.cn) ; Zou, Jianwen(jwzou21@njau.edu.cn) |
| 英文摘要 | Aim Drought has been shown to alter terrestrial ecosystem carbon (C) and nitrogen (N) dynamics, and thus feedback to future climate. However, drought-induced changes in terrestrial upland C and N pools and the drought response of soil carbon dioxide (CO2) and nitrous oxide (N2O) fluxes are yet to be quantified. Location Global upland ecosystems. Time period 2000-2018. Major taxa studied Terrestrial C and N fluxes. Methods A meta-analysis was conducted that compiled 1,344 measurements from 128 manipulative studies worldwide to obtain a general picture of terrestrial C and N cycling responses to soil drought stress and identify the primary driving factors. Results We showed that drought significantly decreased plant C pools, with stronger negative responses of aboveground than belowground C components. Drought significantly decreased soil respiration (R-S) and N2O fluxes by 19% and 29%, respectively. There were non-significant changes in soil organic C and N pools in response to drought; in contrast to a considerable decrease in soil dissolved organic C (-22%), there was a robust increase in soil nitrate-N (26%) following short-term drought impact. By relating net ecosystem productivity (NEP) to the difference between net primary production (NPP) and soil heterotrophic respiration (R-H), drought was found to drive a decrease up to -37% in NEP, being equivalent to a reduction in terrestrial net C uptake of 2.91 t C/ha. Main conclusions Our study provides insights into soil release of CO(2)and N2O with a linkage to the changes in terrestrial C and N pools in response to drought across upland biomes. Our findings highlight that, despite the lowered soil C release rate, the capacity of upland biomes as a C sink to slow climate change would still be weakened due to a robust decline of plant-derived C input to soil in a future drier climate. |
| WOS关键词 | GREENHOUSE-GAS EMISSIONS ; SOIL CARBON ; PRECIPITATION ; RESPIRATION ; RESPONSES ; WATER ; ECOSYSTEMS ; N2O ; ACCUMULATION ; METAANALYSIS |
| 资助项目 | National Natural Science Foundation of China[41771268] ; National Natural Science Foundation of China[41771323] ; National Key Research and Development Program of China[2016YFD0201200] ; Open Fund of Anhui Province Key Laboratory of Farmland Ecological Conservation and Pollution Prevention[KLFECPP2018001] ; Natural Science; Foundation; of China; Research and Development |
| WOS研究方向 | Environmental Sciences & Ecology ; Physical Geography |
| 语种 | 英语 |
| 出版者 | WILEY |
| WOS记录号 | WOS:000553659200001 |
| 资助机构 | National Natural Science Foundation of China ; National Key Research and Development Program of China ; Open Fund of Anhui Province Key Laboratory of Farmland Ecological Conservation and Pollution Prevention ; Natural Science; Foundation; of China; Research and Development |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/158212]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Liu, Shuwei; Zou, Jianwen |
| 作者单位 | 1.Nanjing Agr Univ, Coll Resources & Environm Sci, Jiangsu Key Lab Low Carbon Agr & GHGs Mitigat, Nanjing 210095, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing, Peoples R China 3.Anhui Sci & Technol Univ, Coll Resources & Environm, Chuzhou, Peoples R China 4.Nanjing Agr Univ, Jiangsu Key Lab, Jiangsu Collaborat Innovat Ctr Solid Organ Waste, Nanjing, Peoples R China 5.Nanjing Agr Univ, Engn Ctr Solid Organ Waste Utilizat, Jiangsu Collaborat Innovat Ctr Solid Organ Waste, Nanjing, Peoples R China 6.Univ Calif Davis, Dept Land Air & Water Resources, Davis, CA 95616 USA |
| 推荐引用方式 GB/T 7714 | Zheng, Yajing,Jin, Yaguo,Ma, Ruoya,et al. Drought shrinks terrestrial upland resilience to climate change[J]. GLOBAL ECOLOGY AND BIOGEOGRAPHY,2020:12. |
| APA | Zheng, Yajing.,Jin, Yaguo.,Ma, Ruoya.,Kong, Delei.,Zhu-Barker, Xia.,...&Zou, Jianwen.(2020).Drought shrinks terrestrial upland resilience to climate change.GLOBAL ECOLOGY AND BIOGEOGRAPHY,12. |
| MLA | Zheng, Yajing,et al."Drought shrinks terrestrial upland resilience to climate change".GLOBAL ECOLOGY AND BIOGEOGRAPHY (2020):12. |
入库方式： OAI收割
来源：地理科学与资源研究所
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