Impacts of climate extremes on ecosystem metrics in southwest China
Impacts of climate extremes on ecosystem metrics in southwest China
复制标题
极端气候对中国西南地区生态系统指标的影响
DOI：
10.1016/j.scitotenv.2021.145979
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发表时间：
2021-07
影响因子：
9.8
通讯作者：
Liu Shirong
中科院分区：
文献类型：
--
作者：
Shao Hui;Zhang Yu;ong;Gu Fengxue;Shi Chunming;Miao Ning;Liu Shirong
Due to global warming, climate extremes are increasing significantly, which is greatly impacting ecosystems dynamics. Identified as a key ecological area, southwest China (SWC) has experienced frequent extreme climatic events. Using daily meteorological data and Moderate-Resolution Imaging Spectroradiometer data, we analyzed the spatiotemporal variations of 21 extreme climate indices (ECIs) and 3 ecosystem metrics, namely, normalized difference vegetation index (NDVI), leaf area index (LAI), and gross primary production (GPP), as well as the responses of these metrics to ECIs during 2000–2018. Our results showed that the regionally averaged NDVI, LAI, and GPP increased significantly in this period with annual rates of 0.003, 0.04 m2m−2, and 10.58 g C m−2, respectively (P< 0.001). Cold-related ECIs and consecutive wet days decreased, while warm-related ECIs, heavy precipitation days, and extreme precipitation intensity displayed the opposite trend. The sums (22.48%, 12.98%, and 32.70%, respectively) of the relative contribution proportions of the sensitive temperature-related ECIs (T-ECIs) to NDVI, LAI, and GPP were higher than that those (14.60%, 12.75%, and 16.37%, respectively) of the sensitive precipitation-related ECIs (P-ECIs). Ecosystem metrics were significantly correlated with most ECIs with time lags of 2–3-month. The correlation coefficients between large-scale atmospheric circulation indices and T-ECIs were significant (P< 0.05). The Atlantic Multidecadal Oscillation had a greater influence on T-ECIs than any other large-scale climatic oscillations. Our study indicated that T-ECIs had a greater impact on ecosystems than P-ECIs in SWC and that more attention should be paid to increasingly heavy precipitation and extreme high temperatures in the region.
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DOI：
10.1002/joc.4829
发表时间：
2017-03
期刊：
International Journal of Climatology
影响因子：
--
作者：
Supari;F. Tangang;L. Juneng;E. Aldrian
通讯作者：
Supari;F. Tangang;L. Juneng;E. Aldrian
影响因子：
6.4
作者：
Ashutosh Sharma;M. Goyal
通讯作者：
Ashutosh Sharma;M. Goyal
大西洋多年代际变化对青藏高原夏季气温的影响
影响因子：
4.9
作者：
Shi Chunming;Sun Cheng;Wu Guocan;Wu Xiuchen;Chen Deliang;Masson Delmotte Valerie;Li Jianping;Xue Jiaqing;Li Zongshan;Ji Duoying;Zhang Jing;Fan Zexin;Shen Miaogen;Shu Lifu;Ciais Philippe
通讯作者：
Ciais Philippe
太平洋年代际振荡和热带印度洋—西太平洋海表温度对登陆中国沿海台风变化的潜在影响
影响因子：
4.6
作者：
Yang Lei;Chen Sheng;Wang Chunzai;Wang Dongxiao;Wang Xin
通讯作者：
Wang Xin
通过改良土壤、品种和农业管理措施缩小东北不同气候区玉米农艺产量差距
影响因子：
2
作者：
Liu Zhijuan;Yang Xiaoguang;Lin Xiaomao;Hubbard Kenneth G.;Lv Shuo;Wang Jing
通讯作者：
Wang Jing