Monitoring the impact of climate change and human activities on grassland vegetation dynamics in the northeastern Qinghai-Tibet Plateau of China during 2000-2015

doi:10.1007/s40333-019-0061-2

CORC > 成都生物研究所 > 中国科学院成都生物研究所 > 生物多样性与生态系统服务领域 > 中国科学院山地生态恢复与生物资源利用重点实验室

	Monitoring the impact of climate change and human activities on grassland vegetation dynamics in the northeastern Qinghai-Tibet Plateau of China during 2000-2015
	Xiong, Qinli 4; Xiao, Yang 5; Halmy, Marwa Waseem A.6; Dakhil, Mohammed A.1,4,7; Liang, Pinghan 8; Liu, Chenggang 2; Zhang, Lin 4; Pandey, Bikram 4,7; Pan, Kaiwen 4; El Kafraway, Sameh B.3
刊名	JOURNAL OF ARID LAND
	2019
卷号	11 期号:5 页码:637-651
关键词	climate change human activities NDVI variation Qinghai-Tibet Plateau redundancy analysis vegetation net primary productivity
ISSN号	1674-6767
DOI	10.1007/s40333-019-0061-2
产权排序	1
文献子类	Article
英文摘要	Climate change and human activities can influence vegetation net primary productivity (NPP), a key component of natural ecosystems. The Qinghai-Tibet Plateau of China, in spite of its significant natural and cultural values, is one of the most susceptible regions to climate change and human disturbances in the world. To assess the impact of climate change and human activities on vegetation dynamics in the grassland ecosystems of the northeastern Qinghai-Tibet Plateau, we applied a time-series trend analysis to normalized difference vegetation index (NDVI) datasets from 2000 to 2015 and compared these spatiotemporal variations with trends in climatic variables over the same time period. The constrained ordination approach (redundancy analysis) was used to determine which climatic variables or human-related factors mostly influenced the variation of NDVI. Furthermore, in order to determine whether current conservation measures and programs are effective in ecological protection and reconstruction, we divided the northeastern Qinghai-Tibet Plateau into two parts: the Three-River Headwater conservation area (TRH zone) in the south and the non-conservation area (NTRH zone) in the north. The results indicated an overall (73.32%) increasing trend of vegetation NPP in grasslands throughout the study area. During the period 2000-2015, NDVI in the TRH and NTRH zones increased at the rates of 0.0015/a and 0.0020/a, respectively. Specifically, precipitation accounted for 9.2% of the total variation in NDVI, while temperature accounted for 13.4%. In addition, variation in vegetation NPP of grasslands responded not only to long- and short-term changes in climate, as conceptualized in non-equilibrium theory, but also to the impact of human activities and their associated perturbations. The redundancy analysis successfully separated the relative contributions of climate change and human activities, of which village population and agricultural gross domestic product were the two most important contributors to the NDVI changes, explaining 17.8% and 17.1% of the total variation of NDVI (with the total contribution >30.0%), respectively. The total contribution percentages of climate change and human activities to the NDVI variation were 27.5% and 34.9%, respectively, in the northeastern Qinghai-Tibet Plateau. Finally, our study shows that the grassland restoration in the study area was enhanced by protection measures and programs in the TRH zone, which explained 7.6% of the total variation in NDVI.
学科主题	Environment/ecology
URL标识	查看原文
WOS关键词	NET PRIMARY PRODUCTION ; RANGELAND DEGRADATION ; CARBON EMISSIONS ; PLANT PHENOLOGY ; GROWING-SEASON ; SATELLITE DATA ; NDVI ; RESPONSES ; AVHRR ; PATTERNS
WOS研究方向	Environmental Sciences & Ecology
语种	英语
CSCD记录号	CSCD:6595729
出版者	SPRINGER HEIDELBERG
WOS记录号	WOS:000496831800001
内容类型	期刊论文
源URL	[http://210.75.237.14/handle/351003/31038]
专题	生物多样性与生态系统服务领域_中国科学院山地生态恢复与生物资源利用重点实验室
通讯作者	Xiao, Yang
作者单位	1.Helwan Univ, Dept Bot & Microbiol, Fac Sci, Cairo 11790, Egypt; 2.Chinese Acad Sci, Xishuangbanna Trop Bot Garden, CAS Key Lab Trop Plant Resources & Sustainable Us, Menglun 666303, Peoples R China; 3.Natl Author Remote Sensing & Space Sci, Cairo 11790, Egypt 4.Chinese Acad Sci, Chengdu Inst Biol, CAS Key Lab Mt Ecol Restorat & Bioresource Utiliz,Ecol Restorat Biodivers Conservat Key Lab Sichuan, Chengdu 610041, Sichuan, Peoples R China; 5.Jishou Univ, Coll Biol & Environm Sci, Jishou 416000, Peoples R China; 6.Alexandria Univ, Dept Environm Sci, Fac Sci, Alexandria 21511, Egypt; 7.Univ Chinese Acad Sci, Beijing 100039, Peoples R China; 8.Sun Yat Sen Univ, Sch Govt, Guangzhou 510275, Guangdong, Peoples R China;
推荐引用方式 GB/T 7714	Xiong, Qinli,Xiao, Yang,Halmy, Marwa Waseem A.,et al. Monitoring the impact of climate change and human activities on grassland vegetation dynamics in the northeastern Qinghai-Tibet Plateau of China during 2000-2015[J]. JOURNAL OF ARID LAND,2019,11(5):637-651.
APA	Xiong, Qinli.,Xiao, Yang.,Halmy, Marwa Waseem A..,Dakhil, Mohammed A..,Liang, Pinghan.,...&Chen, Jun.(2019).Monitoring the impact of climate change and human activities on grassland vegetation dynamics in the northeastern Qinghai-Tibet Plateau of China during 2000-2015.JOURNAL OF ARID LAND,11(5),637-651.
MLA	Xiong, Qinli,et al."Monitoring the impact of climate change and human activities on grassland vegetation dynamics in the northeastern Qinghai-Tibet Plateau of China during 2000-2015".JOURNAL OF ARID LAND 11.5(2019):637-651.