QQ客服 官方微博 反馈留言

	The impacts of climate change and human activities on grassland productivity in Qinghai Province, China
	Yin F. ; Deng X. Z. ; Jin Q. ; Yuan Y. W. ; Zhao C. H.
	2014
关键词	climate change human activities grassland degradation spatial distribution residual analysis west-african sahel land-use change south-africa environmental indicators socioeconomic-factors mediterranean region desertification risk vegetation dynamics northern china inner-mongolia
英文摘要	Qinghai Province, which is the source of three major rivers (i.e., Yangtze River, Yellow River and Lancang River) in East Asia, has experienced severe grassland degradation in past decades. The aim of this work was to analyze the impacts of climate change and human activities on grassland ecosystem at different spatial and temporal scales. For this purpose, the regression and residual analysis were used based on the data from remote sensing data and meteorological stations. The results show that the effect of climate change was much greater in the areas exhibiting vigorous vegetation growth. The grassland degradation was strongly correlated with the climate factors in the study area except Haixi Prefecture. Temporal and spatial heterogeneity in the quality of grassland were also detected, which was probably mainly because of the effects of human activities. In the 1980s, human activities and grassland vegetation growth were in equilibrium, which means the influence of human activities was in balance with that of climate change. However, in the 1990s, significant grassland degradation linked to human activities was observed, primarily in the Three-River Headwaters Region. Since the 21(st) century, this adverse trend continued in the Qinghai Lake area and near the northern provincial boundaries, opposite to what were observed in the eastern part of study. These results are consistent with the currently status of grassland degradation in Qinghai Province, which could serve as a basis for the local grassland management and restoration programs.
出处	Frontiers of Earth Science
卷	8
期	1
页	93-103
收录类别	SCI
语种	英语
ISSN号	2095-0195
内容类型	SCI/SSCI论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/29446]
专题	地理科学与资源研究所_历年回溯文献
推荐引用方式 GB/T 7714	Yin F.,Deng X. Z.,Jin Q.,et al. The impacts of climate change and human activities on grassland productivity in Qinghai Province, China. 2014.

个性服务

查看访问统计

相关权益政策

暂无数据

收藏/分享

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。