Journal ArticleDOI
Rangeland degradation on the Qinghai-Tibetan plateau: A review of the evidence of its magnitude and causes
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TLDR
The extent and magnitude of rangeland degradation on the Qinghai-Tibetan plateau (QTP) remains largely unknown because monitoring programs have been subjective and poorly documented as mentioned in this paper.About:
This article is published in Journal of Arid Environments.The article was published on 2010-01-01. It has received 855 citations till now. The article focuses on the topics: Population.read more
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The impacts of climate change and human activities on biogeochemical cycles on the Qinghai-Tibetan Plateau
Huai Chen,Qiuan Zhu,Changhui Peng,Ning Wu,Ning Wu,Yanfen Wang,Xiuqing Fang,Yongheng Gao,Dan Zhu,Gang Yang,Jianqing Tian,Xiaoming Kang,Shilong Piao,Shilong Piao,Hua Ouyang,Wenhua Xiang,Zhi-Bin Luo,Hong Jiang,Xingzhang Song,Yao Zhang,Guirui Yu,Xinquan Zhao,Peng Gong,Tandong Yao,Jianghua Wu +24 more
TL;DR: To reduce the uncertainties and to improve the precision of the predictions of the impacts of climate change and human activities on biogeochemical cycles, efforts should focus on conducting more field observation studies, integrating data within improved models, and developing new knowledge about coupling among carbon, nitrogen, and phosphorus bioge biochemical cycles.
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The impact of climate change and anthropogenic activities on alpine grassland over the Qinghai-Tibet Plateau
Baoxiong Chen,Xianzhou Zhang,Jian Tao,Jianshuang Wu,Jingsheng Wang,Peili Shi,Yangjian Zhang,Chengqun Yu +7 more
TL;DR: In this article, the authors used process-based terrestrial ecosystem model to stimulate the potential climate-driven alpine grassland net primary production (NPP), and Carnegie-Ames-Stanford Approach based on remote sensing to stimulate actual grassland NPP influenced by both of climate change and anthropogenic activities over the Qinghai-Tibet plateau (QTP) from 1982 to 2011.
Journal ArticleDOI
Influences of temperature and precipitation before the growing season on spring phenology in grasslands of the central and eastern Qinghai-Tibetan Plateau
TL;DR: In this paper, the spatial patterns of grassland green-up onset in relation to air temperature and precipitation before the growing season ("preseason" henceforth) in the central and eastern plateau were characterized using linear programming with correlation analysis.
Journal ArticleDOI
Effects of warming and grazing on soil N availability, species composition, and ANPP in an alpine meadow
Shiping Wang,Jichuang Duan,Guangping Xu,Yanfen Wang,Zhenhua Zhang,Yichao Rui,Caiyun Luo,Burenbayin Xu,Xiaoxue Zhu,Xiaofeng Chang,Xiaoyong Cui,Haishan Niu,Xinquan Zhao,Wenying Wang +13 more
TL;DR: It is suggested that soil N availability does not determine ANPP under simulated warming and that heavy grazing rather than warming causes degradation of the alpine meadows.
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Rangeland degradation on the qinghai-tibet plateau: implications for rehabilitation
TL;DR: In this article, the extent and underlying causes of rangeland degradation on the Qinghai-Tibet Plateau in China through a comprehensive review of the literature are evaluated and different measures are proposed to rehabilitate rangelands that have been degraded by different mechanisms.
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Climatic warming in the Tibetan Plateau during recent decades
Xiaodong Liu,Baode Chen +1 more
TL;DR: In this paper, the authors collected monthly surface air temperature data from almost every meteorological station on the Tibetan Plateau (TP) since their establishment, and analyzed the temperature series to show that the main portion of the TP has experienced statistically significant warming since the mid-1950s, especially in winter, but the recent warming in the central and eastern TP did not reach the level of the 1940s warm period until the late 1990s.
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A handful of heuristics and some propositions for understanding resilience in social-ecological systems
TL;DR: This paper articulates the understanding of how complex systems change and what determines their ability to absorb disturbances in either their ecological or their social domains and presents a list of some that could help define the next phase of resilience-related research.
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Responses of permafrost to climate change and their environmental significance, Qinghai-Tibet Plateau
Guodong Cheng,Tonghua Wu +1 more
Abstract: [1] In this paper we summarize recent research in geocryological studies carried out on the Qinghai-Tibet Plateau that show responses of permafrost to climate change and their environmental implications. Long-term temperature measurements indicate that the lower altitudinal limit of permafrost has moved up by 25 m in the north during the last 30 years and between 50 and 80 m in the south over the last 20 years. Furthermore, the thickness of the active layer has increased by 0.15 to 0.50 m and ground temperature at a depth of 6 m has risen by about 0.1° to 0.3°C between 1996 and 2001. Recent studies show that freeze-thaw cycles in the ground intensify the heat exchange between the atmosphere and the ground surface. The greater the moisture content in the soil, the greater is the influence of freeze-thaw cycling on heat exchange. The water and heat exchange between the atmosphere and the ground surface due to soil freezing and thawing has a significant influence on the climate in eastern Asia. A negative correlation exists between soil moisture and heat balance on the plateau and the amount of summer precipitation in most regions of China. A simple frozen soil parameterization scheme was developed to simulate the interaction between permafrost and climate change. This model, combined with the NCAR Community Climate Model 3.6, is suitable for the simulation of permafrost changes on the plateau. In addition, permafrost degradation is one of the main causes responsible for a dropping groundwater table at the source areas of the Yangtze River and Yellow River, which in turn results in lowering lake water levels, drying swamps and shrinking grasslands.
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Experimental warming causes large and rapid species loss, dampened by simulated grazing, on the Tibetan Plateau
TL;DR: In this article, the authors investigated the independent and combined effects of experimental warming and grazing on plant species diversity on the north-eastern Tibetan Plateau, a region highly vulnerable to ongoing climate and land use changes.
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Recent Glacial Retreat and Its Impact on Hydrological Processes on the Tibetan Plateau, China, and Surrounding Regions
TL;DR: In this paper, the authors studied the effect of glacial retreat on the hydrological processes in the Tibetan Plateau and surrounding regions, and found that the retreat is relatively small in the interior of the Tibetan plateau and increases to the margins of the plateau with the greatest retreat around the edges.