Drought will constrain ongoing increase in net ecosystem productivity under future climate warming over alpine grasslands on the Qinghai-Tibetan Plateau, China
文献类型：期刊论文
| 作者 | Zuo, Chan1,2; Wang, Junbang1,7; Zhang, Xiujuan2; Ye, Hui3; Wang, Shaoqiang1; Watson, Alan E.4; Li, Yingnian5; Zhao, Xinquan5,6 |
| 刊名 | ECOLOGICAL INDICATORS
 |
| 出版日期 | 2023-10-01 |
| 卷号 | 154页码:15 |
| ISSN号 | 1470-160X |
| 关键词 | Qinghai Carbon sink CEVSA-RS Drought Warming climate |
| DOI | 10.1016/j.ecolind.2023.110823 |
| 通讯作者 | Wang, Junbang(jbwang@igsnrr.ac.cn) |
| 英文摘要 | The alpine grasslands of the Qinghai-Tibetan Plateau play an important role in multiple ecosystem functions, all of which are key in regulating regional climate influences and providing pristine headwaters for millions of people downstream from this basin. Alpine grasslands act as a carbon sink, storing carbon dioxide and keeping heat-trapping greenhouse gases out of the atmosphere, but it is not clear how this will change in a warming climate in the future. In this paper, the net ecosystem productivity (NEP) of alpine grasslands in Qinghai province, on the Qinghai-Tibetan Plateau, was predicted for the period from 2010 to 2099. Trends and stability were analyzed under two climate scenarios, Representative Concentration Pathway 4.5 (RCP4.5) and 8.5 (RCP8.5) representing the lower and higher emission scenarios for greenhouse gases. The results suggest that grasslands will continue to contribute as a carbon sink, with a positive NEP through this century. Almost the same magnitude (38 Tg C a-1, 1 T g = 1012 g) of contribution was projected under both scenarios. Grasslands are projected to be the major contributor to NEP in Qinghai province, with more than 89% of NEP in the future. The carbon sink function will increase over more than 69% of the grasslands and peak around 2069 (RCP4.5) or 2066 (RCP8.5). Then the carbon sink function will begin to decrease and it will decrease more quickly and become more variable under the RCP8.5 than the RCP4.5. The impacts of temperature and precipitation changes were analyzed and NEP was found to be more sensitive to temperature than precipitation change. The trend of increasing contribution to NEP is driven by a warming climate, while the stability of NEP is mainly influenced by the precipitation, which results in an upward trend before the peak and a decline due to stresses from limits in available water in a continued warming climate. |
| WOS关键词 | SOIL CARBON ; TERRESTRIAL ECOSYSTEMS ; ATMOSPHERIC CO2 ; ROOT TURNOVER ; TEMPERATURE RESPONSE ; TEMPORAL DYNAMICS ; FOREST ; RESPIRATION ; SENSITIVITY ; NITROGEN |
| 资助项目 | Second Tibetan Plateau Scientific Expedition and Research (STEP) program[2019QZKK0302-02] ; National Natural Science Foundation of China[31971507] ; CAS-Qinghai Province Joint program on Three-River Headwaters National Park[LHZX-2020-07] |
| WOS研究方向 | Biodiversity & Conservation ; Environmental Sciences & Ecology |
| 语种 | 英语 |
| 出版者 | ELSEVIER |
| WOS记录号 | WOS:001069154000001 |
| 资助机构 | Second Tibetan Plateau Scientific Expedition and Research (STEP) program ; National Natural Science Foundation of China ; CAS-Qinghai Province Joint program on Three-River Headwaters National Park |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/198391]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Wang, Junbang |
| 作者单位 | 1.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Natl Ecosyst Sci Data Ctr, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China 2.Yangtze Univ, Coll Hort & Gardening, Jingzhou 434023, Peoples R China 3.Jiujiang Univ, Sch Tourism & Geog, Jiujiang 332005, Peoples R China 4.US Forest Serv, USDA, Rocky Mt Res Stn, Missoula, MT 59801 USA 5.Chinese Acad Sci, Northwest Inst Plateau Biol, Xining 810008, Peoples R China 6.Qinghai Univ, State Key Lab Plateau Ecol & Agr, Xining 810016, Peoples R China 7.A11 Datun Rd, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zuo, Chan,Wang, Junbang,Zhang, Xiujuan,et al. Drought will constrain ongoing increase in net ecosystem productivity under future climate warming over alpine grasslands on the Qinghai-Tibetan Plateau, China[J]. ECOLOGICAL INDICATORS,2023,154:15. |
| APA | Zuo, Chan.,Wang, Junbang.,Zhang, Xiujuan.,Ye, Hui.,Wang, Shaoqiang.,...&Zhao, Xinquan.(2023).Drought will constrain ongoing increase in net ecosystem productivity under future climate warming over alpine grasslands on the Qinghai-Tibetan Plateau, China.ECOLOGICAL INDICATORS,154,15. |
| MLA | Zuo, Chan,et al."Drought will constrain ongoing increase in net ecosystem productivity under future climate warming over alpine grasslands on the Qinghai-Tibetan Plateau, China".ECOLOGICAL INDICATORS 154(2023):15. |
入库方式： OAI收割
来源：地理科学与资源研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。