气候变化领域集成服务门户(CCPortal): Impacts of Permafrost Degradation on Hydrology and Vegetation in the Source Area of the Yellow River on Northeastern Qinghai-Tibet Plateau, Southwest China

CCPortal

DOI	10.3389/feart.2022.845824
	Impacts of Permafrost Degradation on Hydrology and Vegetation in the Source Area of the Yellow River on Northeastern Qinghai-Tibet Plateau, Southwest China
	Jin, Xiaoying; Jin, Huijun; Luo, Dongliang; Sheng, Yu; Wu, Qingbai; Wu, Jichun; Wang, Wenhui; Huang, Shuai; Li, Xiaoying; Liang, Sihai; Wang, Qingfeng; He, Ruixia; Serban, Raul D.; Ma, Qiang; Gao, Shuhui; Li, Yan
通讯作者	Jin, HJ (通讯作者)，Northeast Forestry Univ, Sch Civil Engn, Harbin, Peoples R China. ; Jin, HJ (通讯作者)，Northeast Forestry Univ, Inst Cold Reg Sci & Engn, Harbin, Peoples R China. ; Jin, HJ (通讯作者)，Chinese Acad Sci, Northwest Inst Ecoenvironm & Engn, State Key Lab Frozen Soils Engn, Lanzhou, Peoples R China.
发表日期	2022
EISSN	2296-6463
卷号	10
英文摘要	Under a persistent warming climate and increasing human activities, permafrost in the Source Area of the Yellow River (SAYR) has been degrading regionally, resulting in many eco-environmental problems. This paper reviews the changes in air temperature and precipitation over the past 60 years and presents the distribution and degradation of alpine permafrost in the SAYR. The review is focused on the permafrost degradation-induced changes in hydrology, wetlands, thermokarst lakes, ponds, and vegetation. Mean annual air temperatures have been rising at an average rate of 0.4 degrees C/10a over the past 60 years, while precipitation has increased only slightly (16 mm/10a). Borehole temperature monitoring at the depth of 15 m shows the permafrost warming rates of 0.01-0.21 degrees C/10a in the Headwater Aera of the Yellow River. As a result of permafrost thaw, the amount of surface waters has declined while groundwater storage has increased. Due to permafrost degradation, the supra-permafrost water table lowers gradually, resulting in a reduction in areal extents of wetlands and lakes in the SAYR. We further renamed the concept of the burial depth of the ecologically-safe supra-permafrost water table, the minimum depth of the groundwater table for sustaining the normal growth of alpine grassland vegetation, for the SAYR to describe the relationship between the lowering permafrost table and succeeding alpine vegetation. Furthermore, we recommended more studies focusing on snow cover and carbon stock and emissions related to permafrost degradation under a warming climate. We also advised to timely establish the long-term monitoring networks for the rapidly changing mountain cryosphere, alpine ecology, alpine hydrology, eco-hydrology, cryo-hydrogeology, and carbon fluxes. Moreover, process-based models should be developed and improved to better simulate and predict the responses of alpine ecosystem changes to the interacting cryospheric and other environmental variables and their ecological and ecohydrological impacts in the SAYR and downstream Yellow River basins. This study can help better manage the ecological and hydrological environments in the Upper Yellow River that are sensitive to changes in the alpine climate and cryosphere.
关键词	FROZEN GROUND DEGRADATION ECO-ENVIRONMENTAL DEGRADATION SOURCE REGION HEADWATER AREA CLIMATE-CHANGE STORAGE CHANGES ECOSYSTEMS RESPONSES DYNAMICS RUNOFF
英文关键词	permafrost degradation; ecological impacts; alpine permafrost ecosystems; burial depth of ecologically-safe groundwater table; source area of the Yellow River
语种	英语
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
WOS记录号	WOS:000777752800001
来源期刊	FRONTIERS IN EARTH SCIENCE
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/254841
作者单位	[Jin, Xiaoying; Jin, Huijun; Wang, Wenhui; Huang, Shuai] Northeast Forestry Univ, Sch Civil Engn, Harbin, Peoples R China; [Jin, Xiaoying; Jin, Huijun] Northeast Forestry Univ, Inst Cold Reg Sci & Engn, Harbin, Peoples R China; [Jin, Huijun; Luo, Dongliang; Sheng, Yu; Wu, Qingbai; Wu, Jichun; Wang, Qingfeng; He, Ruixia; Serban, Raul D.; Ma, Qiang; Gao, Shuhui; Li, Yan] Chinese Acad Sci, Northwest Inst Ecoenvironm & Engn, State Key Lab Frozen Soils Engn, Lanzhou, Peoples R China; [Li, Xiaoying] Northeast Forestry Univ, Sch Forestry, Harbin, Peoples R China; [Liang, Sihai] China Univ Geosci, Sch Water Resources & Environm, Beijing, Peoples R China; [Serban, Raul D.] Eurac Res, Inst Alpine Environm, Bolzano, Italy; [Gao, Shuhui] Lanzhou Jiaotong Univ, Sch Civil Engn, Lanzhou, Peoples R China
推荐引用方式 GB/T 7714	Jin, Xiaoying,Jin, Huijun,Luo, Dongliang,et al. Impacts of Permafrost Degradation on Hydrology and Vegetation in the Source Area of the Yellow River on Northeastern Qinghai-Tibet Plateau, Southwest China[J]. 中国科学院西北生态环境资源研究院,2022,10.
APA	Jin, Xiaoying.,Jin, Huijun.,Luo, Dongliang.,Sheng, Yu.,Wu, Qingbai.,...&Li, Yan.(2022).Impacts of Permafrost Degradation on Hydrology and Vegetation in the Source Area of the Yellow River on Northeastern Qinghai-Tibet Plateau, Southwest China.FRONTIERS IN EARTH SCIENCE,10.
MLA	Jin, Xiaoying,et al."Impacts of Permafrost Degradation on Hydrology and Vegetation in the Source Area of the Yellow River on Northeastern Qinghai-Tibet Plateau, Southwest China".FRONTIERS IN EARTH SCIENCE 10(2022).