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| Multiyear precipitation reduction strongly decreases carbon uptake over northern China | |
Yuan, Wenping; Liu, Dan; Dong, Wenjie; Liu, Shuguang1; Zhou, Guangsheng2,3; Yu, Guirui4; Zhao, Tianbao5; Feng, Jinming5; Ma, Zhuguo5; Chen, Jiquan6; Chen, Yang; Chen, Shiping3 ; Han, Shijie7; Huang, Jianping8; Li, Linghao3; Liu, Huizhi9; Liu, Shaoming10; Ma, Mingguo11; Wang, Yanfeng12; Xia, Jiangzhou; Xu, Wenfang; Zhang, Qiang13; Zhao, Xinquang14; Zhao, Liang14
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| 2014 | |
| 发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES
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| ISSN | 2169-8953 |
| 卷号 | 119期号:5页码:881-896 |
| 摘要 | Drought has been a concern in global and regional water, carbon, and energy cycles. From 1999 to 2011, northern China experienced a multiyear precipitation reduction that significantly decreased water availability as indicated by the Palmer Drought Severity Index and soil moisture measurements. In this study, a light use efficiency model (EC-LUE) and an ecosystem physiological model (IBIS) were used to characterize the impacts of long-term drought on terrestrial carbon fluxes in northern China. EC-LUE and IBIS models showed the reduction of averaged GPP of 0.09 and 0.05 Pg C yr-1 during 1999-2011 compared with 1982-1998. Based on the IBIS model, simulated ecosystem respiration experienced an insignificant decrease from 1999 to 2011. The multiyear precipitation reduction changed the regional carbon uptake of 0.011 Pg C yr-1 from 1982 to 1998 to a net source of 0.018 Pg C yr-1 from 1999 to 2011. Moreover, a pronounced decrease in maize yield in almost all provinces in the study region was found from 1999 to 2011 versus the average of yield from1978 to 2011. The largest maize yield reduction occurred in Beijing (2499kgha-1yr-1), Jilin (2180kgha-1yr-1), Tianjing (1923kgha-1yr-1), and Heilongjiang (1791kgha-1yr-1), and the maize yield anomaly was significantly correlated with the annual precipitation over the entire study area. Our results revealed that recent climate change, especially drought-induced water stress, is the dominant cause of the reduction in the terrestrial carbon sink over northern China. |
| 关键词 | Drought Vegetation primary production Carbon uptake Northern China |
| 学科领域 | Environmental Sciences ; Geosciences, Multidisciplinary |
| DOI | 10.1002/2014JG002608 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS关键词 | DROUGHT-INDUCED REDUCTION ; CLIMATE-CHANGE ; SOIL-MOISTURE ; FUTURE CLIMATE ; FOREST ; RESPIRATION ; MORTALITY ; BALANCE ; MODEL ; PRODUCTIVITY |
| WOS研究方向 | Environmental Sciences & Ecology ; Geology |
| WOS记录号 | WOS:000337607900012 |
| 出版者 | AMER GEOPHYSICAL UNION |
| 文献子类 | Article |
| 出版地 | WASHINGTON |
| EISSN | 2169-8961 |
| 资助机构 | National Basic Research Program of China [2010CB833504] ; National Natural Science Foundation of China [40830957] ; Program for New Century Excellent Talents in University [NCET-12-0060] ; Fundamental Research Funds for the Central Universities |
| 作者邮箱 | yuanwpcn@126.com ; dongwj@bnu.edu.cn |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.ibcas.ac.cn/handle/2S10CLM1/27296 |
| 专题 | 植被与环境变化国家重点实验室 |
| 作者单位 | 1.Beijing Normal Univ, State Key Lab Earth Surface Proc & Resource Ecol, Beijing 100875, Peoples R China 2.Cent South Univ Forestry & Technol, Natl Engn Lab Appl Technol Forestry & Ecol South, Changsha, Hunan, Peoples R China 3.Chinese Acad Meteorol Sci, Beijing, Peoples R China 4.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing, Peoples R China 5.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Beijing, Peoples R China 6.Chinese Acad Sci, Inst Atmospher Phys, Key Lab Reg Climate, Beijing, Peoples R China 7.Michigan State Univ, CGCEO, E Lansing, MI 48824 USA 8.Chinese Acad Sci, Inst Appl Ecol, Shenyang 110016, Peoples R China 9.Lanzhou Univ, Lanzhou 730000, Gansu, Peoples R China 10.Chinese Acad Sci, Inst Atmospher Phys, Beijing, Peoples R China 11.Beijing Normal Univ, Sch Geog, Beijing 100875, Peoples R China 12.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou, Gansu, Peoples R China 13.Univ Chinese Acad Sci, Coll Life Sci, Beijing, Peoples R China 14.Meteorol Bur Gansu Prov, Lanzhou, Gansu, Peoples R China 15.Chinese Acad Sci, Northwest Inst Plateau Biol, Key Lab Qinghai Tibetan Plateau Biol Evolut & Ada, Xining, Qinghai, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yuan, Wenping,Liu, Dan,Dong, Wenjie,et al. Multiyear precipitation reduction strongly decreases carbon uptake over northern China[J]. JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES,2014,119(5):881-896. |
| APA | Yuan, Wenping.,Liu, Dan.,Dong, Wenjie.,Liu, Shuguang.,Zhou, Guangsheng.,...&Zhao, Liang.(2014).Multiyear precipitation reduction strongly decreases carbon uptake over northern China.JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES,119(5),881-896. |
| MLA | Yuan, Wenping,et al."Multiyear precipitation reduction strongly decreases carbon uptake over northern China".JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES 119.5(2014):881-896. |
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