The Sensitivity of Vegetation Dynamics to Climate Change across the Tibetan Plateau
文献类型：期刊论文
| 作者 | Liu, Biying2; Tang, Qunli3; Zhou, Yuke1; Zeng, Tao4; Zhou, Ting2 |
| 刊名 | ATMOSPHERE
 |
| 出版日期 | 2022-07-01 |
| 卷号 | 13期号:7页码:14 |
| 关键词 | normalized difference vegetation index climate change sensitivity analysis hydrothermal Tibetan Plateau |
| DOI | 10.3390/atmos13071112 |
| 通讯作者 | Zhou, Ting(zhout32@mail.sysu.edu.cn) |
| 英文摘要 | Vegetation dynamics are key processes which present the ecology system's response to climate change. However, vegetation sensitivity to climate change remains controversial. This study redefined vegetation sensitivity to precipitation (VSP) and vegetation sensitivity to temperature (VST) by the coefficient of determination (R-2) obtained by a linear regression analysis between climate and the normalized difference vegetation index (NDVI), as well as by using an analysis of variance to explore the significant differences between them in different seasons from 1982 to 2013, and exploring the general changed rules of VSP/VST on a timescale. Moreover, the variations in VSP and VST across the Tibetan Plateau were plotted by regression analysis. Finally, we used structural equation modeling (SEM) to verify the hypothesis that the respondence of VSP and VST to the NDVI was regulated by the hydrothermal conditions. Our results showed that: (1) the annual VSP increased in both spring and winter (R-2 = 0.32, p < 0.001; R-2 = 0.25, p < 0.001, respectively), while the annual VST decreased in summer (R-2 = 0.21, p < 0.001); (2) the threshold conditions of seasonal VSP and seasonal VST were captured in the 4-12 mm range (monthly precipitation) and at 0 degrees C (monthly average temperature), respectively; (3) the SEM demonstrated that climate change has significant direct effects on VSP only in spring and winter and on VST only in summer (path coefficient of -0.554, 0.478, and -0.428, respectively). In summary, our findings highlighted that climate change under these threshold conditions would lead to a variation in the sensitivity of the NDVI to seasonal precipitation and temperature. |
| WOS关键词 | NET PRIMARY PRODUCTIVITY ; SOLAR-RADIATION ; GROWING-SEASON ; RAINFALL VARIABILITY ; ALPINE GRASSLANDS ; LAND-USE ; PRECIPITATION ; RESPONSES ; TEMPERATURE ; BIOMASS |
| 资助项目 | Guangdong Basic and Applied Basic Research Foundation[2020A1515011265] ; Special Foundation for National Science and Technology Basic Resources Investigation of China[2019FY202300] ; Project Value Realization of Nature Conservation Areas (Forestry Administration of Guangdong Province) ; Hongda Zhang Scientific Research Fund, Sun Yat-Sen University |
| WOS研究方向 | Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences |
| 语种 | 英语 |
| 出版者 | MDPI |
| WOS记录号 | WOS:000831411200001 |
| 资助机构 | Guangdong Basic and Applied Basic Research Foundation ; Special Foundation for National Science and Technology Basic Resources Investigation of China ; Project Value Realization of Nature Conservation Areas (Forestry Administration of Guangdong Province) ; Hongda Zhang Scientific Research Fund, Sun Yat-Sen University |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/181302]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Zhou, Ting |
| 作者单位 | 1.Chinese Acad Sci, Synth Res Ctr Chinese Ecosyst Res Network, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modelling, Beijing 100101, Peoples R China 2.Sun Yat Sen Univ, Sch Life Sci, Guangzhou 510275, Peoples R China 3.Beijing Technol & Business Univ, Sch Int Econ Management, Dept Int Int Tourism Management, Beijing 100048, Peoples R China 4.Chinese Acad Sci, Chengdu Inst Biol, Chengdu 610059, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Biying,Tang, Qunli,Zhou, Yuke,et al. The Sensitivity of Vegetation Dynamics to Climate Change across the Tibetan Plateau[J]. ATMOSPHERE,2022,13(7):14. |
| APA | Liu, Biying,Tang, Qunli,Zhou, Yuke,Zeng, Tao,&Zhou, Ting.(2022).The Sensitivity of Vegetation Dynamics to Climate Change across the Tibetan Plateau.ATMOSPHERE,13(7),14. |
| MLA | Liu, Biying,et al."The Sensitivity of Vegetation Dynamics to Climate Change across the Tibetan Plateau".ATMOSPHERE 13.7(2022):14. |
入库方式： OAI收割
来源：地理科学与资源研究所
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