Distinct climate driven spatial patterns of frozen soil and vegetation that reflect plant sensitivities across the Tibetan Plateau

	Distinct climate driven spatial patterns of frozen soil and vegetation that reflect plant sensitivities across the Tibetan Plateau
	Zhou, Bing-Rong; Wu, Liang; Song, Ming-Hua; Zhou, Hua-Kun; Li, Yi-Kang; Wang, Min; Zhang, Ting-Jun; Yan, Yu-Qian; Ji, Hai-Juan
刊名	LAND DEGRADATION & DEVELOPMENT
	2021
卷号	32 期号:15
关键词	climate sensitivity eco-region frozen soil depth spatial heterogeneity in climate vegetation production vulnerability warming
英文摘要	Earth's cryosphere and biosphere are extremely sensitive to climate changes, and transitions in states could alter the carbon emission rate to the atmosphere. However, little is known about the climate sensitivities of frozen soil and vegetation production. Moreover, how does climate heterogeneity control the spatial patterns of such sensitivities, and influence regional vulnerability of both frozen soil and vegetation production? Such questions are critical to be answered. We compiled long-time-series dataset including frozen soil depth (FD), normalized difference vegetation index (NDVI), and temperature and precipitation across Tibetan Plateau to quantify their sensitivities. Results reveal large spatial heterogeneity in FD and NDVI sensitivities. Precipitation alleviated FD sensitivities to warming in the cold northeast zone but accelerated FD sensitivities to precipitation in the warm south and southeast. Meanwhile, the positive warming effect on the NDVI was largely offset by slow increase of precipitation. Areas with high FD decreasing rate were found in northeast, inland, and south and southeast zones. Predominate area across the nine eco-regions are characterized as medium FD decreasing rate, and are synchronized with positive NDVI response in inland and west Himalayas, but negative in northeast and south and southeast. Precipitation restriction on NDVI would be pronounced in moist south and southeast. Our study provides new information that makes a much-needed contribution to advancing our understandings of the effects of global climate change on cryosphere and biosphere, which has important implications for global climate and our ability to predict, and therefore prepare for, future global climatic changes. Our attempt confirms that the method we used could be used to identify climate sensitivity of permafrost based on substantial observation data on active layer dynamics in future.
内容类型	期刊论文
源URL	[http://210.75.249.4/handle/363003/60768]
专题	西北高原生物研究所_中国科学院西北高原生物研究所
推荐引用方式 GB/T 7714	Zhou, Bing-Rong,Wu, Liang,Song, Ming-Hua,et al. Distinct climate driven spatial patterns of frozen soil and vegetation that reflect plant sensitivities across the Tibetan Plateau[J]. LAND DEGRADATION & DEVELOPMENT,2021,32(15).
APA	Zhou, Bing-Rong.,Wu, Liang.,Song, Ming-Hua.,Zhou, Hua-Kun.,Li, Yi-Kang.,...&Ji, Hai-Juan.(2021).Distinct climate driven spatial patterns of frozen soil and vegetation that reflect plant sensitivities across the Tibetan Plateau.LAND DEGRADATION & DEVELOPMENT,32(15).
MLA	Zhou, Bing-Rong,et al."Distinct climate driven spatial patterns of frozen soil and vegetation that reflect plant sensitivities across the Tibetan Plateau".LAND DEGRADATION & DEVELOPMENT 32.15(2021).