Spatiotemporal variations of carbon flux and nitrogen deposition flux linked with climate change at the centennial scale in China

doi:10.1007/s11430-018-9548-3

	Spatiotemporal variations of carbon flux and nitrogen deposition flux linked with climate change at the centennial scale in China
	Gao, Dongdong 3,4; Dan, Li 3; Fan, Guangzhou 4; Tian, Hanqin 2; Peng, Jing 3; Yang, Xiujing 3,5; Yang, Fuqiang 3,5; Li, Yueyue 1,5
刊名	SCIENCE CHINA-EARTH SCIENCES
	2020-02-28
页码	18
关键词	Net primary production (NPP) Temperature Precipitation NHx NOy}
ISSN号	1674-7313
DOI	10.1007/s11430-018-9548-3
通讯作者	Gao, Dongdong(gaodd@tea.ac.cn) ; Dan, Li(danli@tea.ac.cn)
英文摘要	The spatial and temporal variations of the vegetation carbon flux in China from 1901 to 2005 were studied using the vegetation net primary production (NPP) values from seven Earth-system models. In addition, the temporal and spatial changes in the nitrogen deposition flux in China were studied using the NHx and NOx fluxes from 1901 to 2005. The relationship between changes in the carbon flux, nitrogen flux and climate was analyzed. The results show that (1) over the past 100 years, NPP in China has shown an upward trend. The average trend coefficient is 0.88 and the NPP distribution trend is generally low in the north and high in the south, with a gradual increase from the northwest to the southeast. Temperature, precipitation and radiation are all conducive to plant growth in the direction of the gradient. The correlation coefficients between the ensemble model mean NPP and temperature, precipitation, longwave radiation and shortwave radiation are 0.88,0.73,0.91 and 0.67, respectively. (2) In the past 100 years, the NHx and NOy fluxes in China have shown an upward trend, with trend coefficients of 0.98 and 0.98, respectively, which pass the 99.9% confidence level of the t-test. NHx and NOy fluxes are also generally low in the north and high in the south, with a gradual increase from the northwest to the southeast in a step-like pattern. (3) The spatial distribution of the correlation coefficients between the NHx and NOy fluxes and air temperature is similar, with only slight differences in values. The spatial distribution of the correlation coefficients between the NHx and NOy fluxes and precipitation is similar in overall pattern, but the pattern is relatively complicated, with a positive-negative-positive-negative-positive pattern occurring across the monsoon region from north to south, and a negative-positive-negative-positive pattern occurring beyond the monsoon region from east to west. (4) The spatial distribution of the correlation coefficients between the NHx and NOy fluxes and NPP shows a generally consistent pattern, but the pattern is relatively uneven. The average distribution of the ensemble model mean is positive correlation in northeast China and southwest China, and alternating positive and negative correlation in other regions.
资助项目	National Natural Science Foundation of China[41630532] ; National Natural Science Foundation of China[41575093] ; National Key Research and Development Program of China[2016YFA0602501] ; National Key Research and Development Program of China[2018YFA0606004]
WOS关键词	NET PRIMARY PRODUCTIVITY ; PRECIPITATION ; TERRESTRIAL ; MODEL ; BIOSPHERE ; PATTERNS ; TRENDS
WOS研究方向	Geology
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000518081100001
资助机构	National Natural Science Foundation of China ; National Key Research and Development Program of China
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/132602]
专题	中国科学院地理科学与资源研究所
通讯作者	Gao, Dongdong; Dan, Li
作者单位	1.Chinese Acad Sci, Key Lab Water Cycle & Related Land Surface Proc, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 2.Auburn Univ, Int Ctr Climate & Global Change Res, Auburn, AL 36849 USA 3.Chinese Acad Sci, Inst Atmospher Phys, Key Lab Reg Climate Environm Temperate East Asia, Beijing 100029, Peoples R China 4.Chengdu Univ Informat Engn, Coll Atmospher Sci, Chengdu 610225, Peoples R China 5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Gao, Dongdong,Dan, Li,Fan, Guangzhou,et al. Spatiotemporal variations of carbon flux and nitrogen deposition flux linked with climate change at the centennial scale in China[J]. SCIENCE CHINA-EARTH SCIENCES,2020:18.
APA	Gao, Dongdong.,Dan, Li.,Fan, Guangzhou.,Tian, Hanqin.,Peng, Jing.,...&Li, Yueyue.(2020).Spatiotemporal variations of carbon flux and nitrogen deposition flux linked with climate change at the centennial scale in China.SCIENCE CHINA-EARTH SCIENCES,18.
MLA	Gao, Dongdong,et al."Spatiotemporal variations of carbon flux and nitrogen deposition flux linked with climate change at the centennial scale in China".SCIENCE CHINA-EARTH SCIENCES (2020):18.