Permafrost response to temperature rise in carbon and nutrient cycling: Effects from habitat-specific conditions and factors of warming
文献类型：期刊论文
| 作者 | Gao, Wenlong2,3,4; Sun, Weimin1,2,5; Xu, Xingliang6 |
| 刊名 | ECOLOGY AND EVOLUTION
 |
| 出版日期 | 2021-10-27 |
| 页码 | 13 |
| 关键词 | carbon cycling climate warming meta-analysis permafrost progressive nitrogen limitation |
| ISSN号 | 2045-7758 |
| DOI | 10.1002/ece3.8271 |
| 通讯作者 | Xu, Xingliang(xuxingl@hotmail.com) |
| 英文摘要 | Permafrost is experiencing climate warming at a rate that is two times faster than the rest of the Earth's surface. However, it is still lack of a quantitative basis for predicting the functional stability of permafrost ecosystems in carbon (C) and nutrient cycling. We compiled the data of 708 observations from 89 air-warming experiments in the Northern Hemisphere and characterized the general effects of temperature increase on permafrost C exchange and balance, biomass production, microbial biomass, soil nutrients, and vegetation N dynamics through a meta-analysis. Also, an investigation was made on how responses might change with habitat-specific (e.g., plant functional groups and soil moisture status) conditions and warming variables (e.g., warming phases, levels, and timing). The net ecosystem C exchange (NEE) was found to be downregulated by warming as a result of a stronger sensitivity to warming in respiration (15.6%) than in photosynthesis (6.2%). Vegetation usually responded to warming by investing more C to the belowground, as belowground biomass increased much more (30.1%) than aboveground biomass (2.9%). Warming had a minor effect on microbial biomass. Warming increased soil ammonium and nitrate concentrations. What's more, a synthesis of 70 observations from 11 herbs and 9 shrubs revealed a 2.5% decline of N in green leaves. Compared with herbs, shrubs had a stronger response to respiration and had a decline in green leaf N to a greater extent. Not only in dry condition did green leaf N decline with warming but also in wet conditions. Warming in nongrowing seasons would negatively affect soil water, C uptake, and biomass production during growing seasons. Permafrost C loss and vegetation N decline may increase with warming levels and timing. Overall, these findings suggest that besides a positive C cycling-climate feedback, there will be a negative feedback between permafrost nutrient cycling and climate warming. |
| WOS关键词 | ALPINE MEADOW ; CLIMATE-CHANGE ; SOIL CARBON ; CO2 FLUX ; NITROGEN DYNAMICS ; FUNCTIONAL-GROUPS ; TIBETAN PLATEAU ; BOREAL FOREST ; ECOSYSTEM ; TUNDRA |
| 资助项目 | National Natural Science Foundation of China[32001209] ; Guangdong Basic and Applied Basic Research Foundation[2019A1515011559] ; GDAS' Project of Science and Technology Development[2019GDASYL-0102002--1] ; Guangdong Introducing Innovative and Entrepreneurial Talents[2017GC010570] ; Science and Technology Planning Project of Guangzhou[202002020072] ; Second Tibetan Plateau Scientific Expedition and Research (STEP) Program[2019QZKK0302] |
| WOS研究方向 | Environmental Sciences & Ecology ; Evolutionary Biology |
| 语种 | 英语 |
| WOS记录号 | WOS:000711727200001 |
| 出版者 | WILEY |
| 资助机构 | National Natural Science Foundation of China ; Guangdong Basic and Applied Basic Research Foundation ; GDAS' Project of Science and Technology Development ; Guangdong Introducing Innovative and Entrepreneurial Talents ; Science and Technology Planning Project of Guangzhou ; Second Tibetan Plateau Scientific Expedition and Research (STEP) Program |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/167275]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Xu, Xingliang |
| 作者单位 | 1.Minist Educ, Key Lab Yellow River & Huai River Water Environm, Beijing, Peoples R China 2.Guangdong Acad Sci, Natl Reg Joint Engn Res Ctr Soil Pollut Control &, Inst Ecoenvironm & Soil Sci, Guangdong Key Lab Integrated Agroenvironm Pollut, Guangzhou, Peoples R China 3.Chinese Acad Trop Agr Sci, Environm & Plant Protect Inst, Hainan Key Lab Trop Ecocircular Agr, Haikou, Hainan, Peoples R China 4.Hainan Danzhou Trop Agroecosyst Natl Observat & R, Danzhou, Peoples R China 5.Henan Normal Univ, Sch Environm, Xinxiang, Henan, Peoples R China 6.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Gao, Wenlong,Sun, Weimin,Xu, Xingliang. Permafrost response to temperature rise in carbon and nutrient cycling: Effects from habitat-specific conditions and factors of warming[J]. ECOLOGY AND EVOLUTION,2021:13. |
| APA | Gao, Wenlong,Sun, Weimin,&Xu, Xingliang.(2021).Permafrost response to temperature rise in carbon and nutrient cycling: Effects from habitat-specific conditions and factors of warming.ECOLOGY AND EVOLUTION,13. |
| MLA | Gao, Wenlong,et al."Permafrost response to temperature rise in carbon and nutrient cycling: Effects from habitat-specific conditions and factors of warming".ECOLOGY AND EVOLUTION (2021):13. |
入库方式： OAI收割
来源：地理科学与资源研究所
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