Precipitation alters temperature effects on ecosystem respiration in Tibetan alpine meadows
文献类型:期刊论文
作者 | Wei, HX (Wei, Haixia)3; Du, MY (Du, Mingyuan)4; Li, X (Li, Xiang)3; Tang, YH (Tang, Yanhong)1,2; Zhao, JX (Zhao, Jingxue)1,2,3; Luo, TX (Luo, Tianxiang)3; Li, RC (Li, Ruicheng)1,2 |
刊名 | AGRICULTURAL AND FOREST METEOROLOGY
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出版日期 | 2018-04-15 |
卷号 | 252期号:0页码:121-129 |
关键词 | Soil Organic-carbon Reciprocal Translocation Experiment Large Altitudinal Gradient Climate-change Autotrophic Respiration Plateau Responses Sensitivity Grassland Nitrogen |
ISSN号 | 0168-1923 |
DOI | 10.1016/j.agrformet.2018.01.014 |
英文摘要 | There is scant evidence for the interactive effect of warming and precipitation change on ecosystem respiration (Re), particularly regarding for alpine meadow ecosystems where there are high belowground biomass and soil organic carbon stocks. Such knowledge is crucial for predicting terrestrial carbon cycling under climate change. We transplanted meadow blocks reciprocally among three altitudes (4650 m, 4950 m and 5200 m) in the central Tibetan Plateau and examined the controls on Re in 1.5 and 2.5 years after the transplantation. Under the same degree of experimental warming by the downward transplantation, the Re increased and decreased significantly when the precipitation was higher and lower at destination sites than at the home sites, respectively. However, the experimental cooling by the upward transplantation consistently reduced the Re regardless of the precipitation change. Further analysis showed that the increase of Re under the experimental warming was closely related to the increase of aboveground biomass, whereas the reduction of Re under the cooling was highly correlated with the decrease of soil temperature. Moreover, the temperature sensitivity of the Re was decreased by the experimental warming but increased by the experimental cooling. These results suggest that effects of climate warming on the ecosystem respiration are highly associated with precipitation changes in the temperature-limited meadow ecosystems. |
学科主题 | 地理学 |
WOS研究方向 | Agriculture ; Forestry ; Meteorology & Atmospheric Sciences |
语种 | 英语 |
WOS记录号 | WOS:000427341400012 |
出版者 | ELSEVIER SCIENCE BV |
源URL | [http://ir.itpcas.ac.cn/handle/131C11/8677] ![]() |
专题 | 青藏高原研究所_图书馆 |
通讯作者 | Tang, YH (Tang, Yanhong); Luo, TX (Luo, Tianxiang) |
作者单位 | 1.Peking Univ, Minist Educ, Dept Ecol, Coll Urban & Environm Sci, 5 Yiheyuan Rd, Beijing 100871, Peoples R China; 2.Peking Univ, Minist Educ, Key Lab Earth Surface Proc, 5 Yiheyuan Rd, Beijing 100871, Peoples R China; 3.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Alpine Ecol & Biodivers, Courtyard 16,Bldg 3,Lincui Rd, Beijing 100101, Peoples R China; 4.Natl Agr & Food Res Org, Inst Agroenvironm Sci, Tsukuba, Ibaraki 3058604, Japan. |
推荐引用方式 GB/T 7714 | Wei, HX ,Du, MY ,Li, X ,et al. Precipitation alters temperature effects on ecosystem respiration in Tibetan alpine meadows[J]. AGRICULTURAL AND FOREST METEOROLOGY,2018,252(0):121-129. |
APA | Wei, HX .,Du, MY .,Li, X .,Tang, YH .,Zhao, JX .,...&Li, RC .(2018).Precipitation alters temperature effects on ecosystem respiration in Tibetan alpine meadows.AGRICULTURAL AND FOREST METEOROLOGY,252(0),121-129. |
MLA | Wei, HX ,et al."Precipitation alters temperature effects on ecosystem respiration in Tibetan alpine meadows".AGRICULTURAL AND FOREST METEOROLOGY 252.0(2018):121-129. |
入库方式: OAI收割
来源:青藏高原研究所
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