Precipitation alters temperature effects on ecosystem respiration in Tibetan alpine meadows | |
Zhao, JX (Zhao, Jingxue)1,2,3; Luo, TX (Luo, Tianxiang)3; Li, RC (Li, Ruicheng)1,2; Wei, HX (Wei, Haixia)3; Li, X (Li, Xiang)3; Du, MY (Du, Mingyuan)4; Tang, YH (Tang, Yanhong)1,2 | |
Source Publication | AGRICULTURAL AND FOREST METEOROLOGY |
2018-04-15 | |
Volume | 252Issue:0Pages:121-129 |
DOI | 10.1016/j.agrformet.2018.01.014 |
Abstract | 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. |
Subject Area | 地理学 |
WOS ID | WOS:000427341400012 |
Language | 英语 |
Indexed By | SCIE |
Keyword | Soil Organic-carbon Reciprocal Translocation Experiment Large Altitudinal Gradient Climate-change Autotrophic Respiration Plateau Responses Sensitivity Grassland Nitrogen |
WOS Research Area | Agriculture ; Forestry ; Meteorology & Atmospheric Sciences |
WOS Subject | Agronomy ; Forestry ; Meteorology & Atmospheric Sciences |
Cooperation Status | 国际 |
ISSN | 0168-1923 |
Department | 环境变化与地表过程重点实验室 |
Publisher | ELSEVIER SCIENCE BV |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.itpcas.ac.cn/handle/131C11/8677 |
Collection | 图书馆 |
Corresponding Author | Luo, TX (Luo, Tianxiang); Tang, YH (Tang, Yanhong) |
Affiliation | 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. |
Recommended Citation GB/T 7714 | Zhao, JX ,Luo, TX ,Li, RC ,et al. Precipitation alters temperature effects on ecosystem respiration in Tibetan alpine meadows[J]. AGRICULTURAL AND FOREST METEOROLOGY,2018,252(0):121-129. |
APA | Zhao, JX .,Luo, TX .,Li, RC .,Wei, HX .,Li, X .,...&Tang, YH .(2018).Precipitation alters temperature effects on ecosystem respiration in Tibetan alpine meadows.AGRICULTURAL AND FOREST METEOROLOGY,252(0),121-129. |
MLA | Zhao, JX ,et al."Precipitation alters temperature effects on ecosystem respiration in Tibetan alpine meadows".AGRICULTURAL AND FOREST METEOROLOGY 252.0(2018):121-129. |
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