气候变化领域集成服务门户(CCPortal): Permafrost change in Northeast China in the 1950s-2010s

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DOI	10.1016/j.accre.2021.01.006
	Permafrost change in Northeast China in the 1950s-2010s
	Zhang Zhong-Qiong; Wu Qing-Bai; Hou Mei-Ting; Tai Bo-Wen; An Yu-Ke
通讯作者	Zhang, ZQ (通讯作者)，Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Frozen Soils Engn, Lanzhou 730000, Peoples R China.
发表日期	2021
ISSN	1674-9278
起始页码	18
结束页码	28
卷号	12 期号:1
英文摘要	Permafrost in Northeast China is highly sensitive to climate warming. Permafrost degradation significantly affects forest and vegetation ecosystems, as well as the safety of engineering projects and other man-made infrastructures. However, the permafrost change in the region is still unclear. This study uses metrological data from 258 weather stations, alongside reanalysis data, and other environmental data to investigate permafrost degradation and its related environmental impacts in Northeast China from the 1950s to 2010s. Results show that the total permafrost area decreased from 4.8 x 10(5) to 3.1 x 10(5) km(2) from the 1950s to the 2010s. The southern limit of permafrost moved 0.1-1.1 degrees northward, and its average elevation rose 160.5 m. During the study period, the degradation of predominantly continuous permafrost, and discontinuous and island permafrost was more pronounced than that of sparsely island permafrost. The south boundary of those three permafrost zones northward by 0-3.4 degrees, 0-5.5 degrees and 0.4-1.1 degrees, the average altitude raised by 339.2 m, 208.3 m, 67.1 m. The permafrost degradation shows the elevation and latitude zonality. Permafrost degradation is mainly caused by the rising of surface temperatures and the impacts of other environmental factors. The snowfall warming the ground of 1.1-10.2 degrees C in cold seasons and rainfall cooling on surface conditions in warm seasons, those may result in temporal and spatial differences in permafrost degradation. However, there are lack of researches in the impact of environment factors on soil temperatures, moisture and permafrost degradation.
关键词	GEOGRAPHICALLY WEIGHTED REGRESSION THERMAL STATE ACTIVE LAYER DEGRADATION PRECIPITATION MOUNTAINS SOIL
英文关键词	Northeast China; Climate warming; Permafrost degradation; Impact of environmental factors
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
WOS类目	Environmental Sciences ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:000629700700003
来源期刊	ADVANCES IN CLIMATE CHANGE RESEARCH
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/253993
作者单位	[Zhang Zhong-Qiong; Wu Qing-Bai; Tai Bo-Wen] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Frozen Soils Engn, Lanzhou 730000, Peoples R China; [Hou Mei-Ting] China Meteorol Adm Training Ctr, Beijing 100081, Peoples R China; [An Yu-Ke] Gansu Prov Transportat Planning Survey & Design I, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Zhang Zhong-Qiong,Wu Qing-Bai,Hou Mei-Ting,et al. Permafrost change in Northeast China in the 1950s-2010s[J]. 中国科学院西北生态环境资源研究院,2021,12(1).
APA	Zhang Zhong-Qiong,Wu Qing-Bai,Hou Mei-Ting,Tai Bo-Wen,&An Yu-Ke.(2021).Permafrost change in Northeast China in the 1950s-2010s.ADVANCES IN CLIMATE CHANGE RESEARCH,12(1).
MLA	Zhang Zhong-Qiong,et al."Permafrost change in Northeast China in the 1950s-2010s".ADVANCES IN CLIMATE CHANGE RESEARCH 12.1(2021).