Spatial-Temporal Variation of ANPP and Rain-Use Efficiency Along a Precipitation Gradient on Changtang Plateau, Tibet

doi:10.3390/rs11030325

	Spatial-Temporal Variation of ANPP and Rain-Use Efficiency Along a Precipitation Gradient on Changtang Plateau, Tibet
	Zhao, Guangshuai 1,2; Liu, Min 2; Shi, Peili 1,3; Zong, Ning 1; Wang, Jingsheng 1; Wu, Jianshuang 1,4; Zhang, Xianzhou 1,3
刊名	REMOTE SENSING
	2019-02-01
卷号	11 期号:3 页码:16
关键词	Changtang Plateau ANPP RUE spatial-temporal pattern climate change vegetation limitation biogeochemical limitation
ISSN号	2072-4292
DOI	10.3390/rs11030325
通讯作者	Shi, Peili(shipl@igsnrr.ac.cn)
英文摘要	Aboveground net primary productivity (ANPP) and rain-use efficiency (RUE) are important indicators in assessing the response of ecosystems to climate change. In this paper, the Changtang Plateau in the Tibetan Autonomous Region was selected as the study area to analyze the spatial and temporal changes of ANPP and RUE in grassland communities and their response to climate change. The results showed the following:(1) The spatial pattern of ANPP was closely related to rainfall on the Changtang Plateau. The average ANPP over the past 15 years increased gradually from the arid west to the humid east. A consistent pattern was exhibited in different grassland types and climate zones. (2) The RUE was higher at the east and west edges of the Changtang Plateau, especially in the arid west, but was lower in the center. From the perspective of different climatic zones, the average RUE in the southern Tibetan semiarid climate zone and the Ngari arid climate zone was significantly higher than that in other climate zones. However, the average RUE in different grassland types only varied from 0.07 to 0.09 gm(-2)mm(-1). The spatial variation in RUE was more distinct in different climatic zones than in different grassland types. (3) Climate change influenced the interannual variation of ANPP and RUE, but the response of ANPP to rainfall showed a significant lag. The interannual change in RUE was negatively correlated with changes in precipitation. (4) In general, a greater area showed a significant increase rather than a decrease in ANPP on the Changtang Plateau, which meant that the grassland condition is improving. The temporal variation patterns of ANPP and RUE in different climate zones were consistent with the overall patterns on the Changtang Plateau, while the variation was not significant in different grassland types.
资助项目	National Natural Science Foundation of China[31870406] ; National Natural Science Foundation of China[41271067] ; National Natural Science Foundation of China[2130219-011]
WOS关键词	QINGHAI-XIZANG PLATEAU ; SPRING PHENOLOGY ; DIVERSITY ; CARBON ; PATTERNS ; NDVI ; PRODUCTIVITY ; VARIABILITY ; ECOSYSTEM ; CLIMATE
WOS研究方向	Remote Sensing
语种	英语
出版者	MDPI
WOS记录号	WOS:000459944400113
资助机构	National Natural Science Foundation of China
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/49161]
专题	中国科学院地理科学与资源研究所
通讯作者	Shi, Peili
作者单位	1.Chinese Acad Sci, Key Lab Ecosyst Network Observat & Modeling, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 2.Natl Forestry & Grassland Adm, China Natl Forestry Grassland Econ & Dev Res Ctr, Beijing 100714, Peoples R China 3.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100190, Peoples R China 4.Free Univ Berlin, Inst Biol, Biodiversity Theoret Ecol, D-14195 Berlin, Germany
推荐引用方式 GB/T 7714	Zhao, Guangshuai,Liu, Min,Shi, Peili,et al. Spatial-Temporal Variation of ANPP and Rain-Use Efficiency Along a Precipitation Gradient on Changtang Plateau, Tibet[J]. REMOTE SENSING,2019,11(3):16.
APA	Zhao, Guangshuai.,Liu, Min.,Shi, Peili.,Zong, Ning.,Wang, Jingsheng.,...&Zhang, Xianzhou.(2019).Spatial-Temporal Variation of ANPP and Rain-Use Efficiency Along a Precipitation Gradient on Changtang Plateau, Tibet.REMOTE SENSING,11(3),16.
MLA	Zhao, Guangshuai,et al."Spatial-Temporal Variation of ANPP and Rain-Use Efficiency Along a Precipitation Gradient on Changtang Plateau, Tibet".REMOTE SENSING 11.3(2019):16.