气候变化领域集成服务门户(CCPortal): Climate change and the distribution of frozen soil in 1980-2010 in northern northeast China

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DOI	10.1016/j.quaint.2018.01.015
	Climate change and the distribution of frozen soil in 1980-2010 in northern northeast China
	Zhang, Zhongqiong; Wu, Qingbai; Xun, Xueyi; Wang, Boxin; Wang, Xunan
发表日期	2018
ISSN	1040-6182
EISSN	1873-4553
起始页码	230
结束页码	241
卷号	467
英文摘要	Frozen soil is an important environmental factor in cold regions. Permafrost change, driven by a warming climate, will increase the risk of permafrost thawing, i.e., carbon release accelerating, suprapermafrost water lowering, desertification strengthening, and infrastructure destructing. Based on the energy balance between the atmosphere and the soil, mean annual air temperature (MAAT), annual precipitation (AP), and mean annual wind speed (Vs) were selected for the analysis of the patterns of permafrost environment and its dynamics from 1980 to 2010 in northern northeast China. According to data from meteorological stations, MAAT and Vs increased with the decrease of latitude in the study area, whereas AP increased with the increase of longitude. During 1980 to 2010, the average of MAAT, Vs, AP, freezing index (DDF), and thawing index (DDT) in the study area was -0.73 degrees C, 473.5 mm, 2.44ms(-1), -2696.7 degrees C.d(-1), and 2458.0 -C.d(-1), respectively. Compared with the condition in 1980, the area with MAAT less than 0 degrees C decreased by 15.8%, 500 mm isotherms of AP moved to the east, the area with Vs of less than 2.2 m/s was expanding, and the area with DDF larger than DDT decreased by 16.9%. The 0 degrees C isotherm moved to the north and high-altitude direction. The area of permafrost was decreased by 13.67% from 1980 to 2010. However, the area with sparcely island permafrost expanded because of the increase in precipitation, especially in the southeast area. MAAT, Vs, and AP influenced the change and distribution of permafrost, among which MAAT was the dominant factor. The influence of Vs and AP gradually decreased from south to north. Changes in the permafrost environment and distribution would directly affect the vegetation succession and ecological environment. This work will provide basic data for regional research on frozen soil and environment in northern Northeast China. (C) 2018 Elsevier Ltd and INQUA. All rights reserved.
英文关键词	Northern northeast China; Meteorological factors; Spatial variation; Permafrost distribution
语种	英语
WOS研究方向	Physical Geography ; Geology
WOS类目	Geography, Physical ; Geosciences, Multidisciplinary
WOS关键词	GROUND CONDITIONS ; PERMAFROST ; MOUNTAINS ; PLATEAU ; RUSSIA
WOS记录号	WOS:000427457000005
来源期刊	QUATERNARY INTERNATIONAL
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/240273
作者单位	[Zhang, Zhongqiong; Wu, Qingbai] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Frozen Soil Engn, Lanzhou 730000, Gansu, Peoples R China; [Xun, Xueyi] Inner Mongolia Autonomous Reg Meteorol Observ, Hohhot 010051, Peoples R China; [Wang, Boxin] Jilin Univ, Construct Engn Coll, Changchun 130021, Jilin, Peoples R China; [Wang, Xunan] Heilongjiang Prov Inst Reg Geol Survey, Harbin 150080, Heilongjiang, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Zhongqiong,Wu, Qingbai,Xun, Xueyi,et al. Climate change and the distribution of frozen soil in 1980-2010 in northern northeast China[J]. 中国科学院西北生态环境资源研究院,2018,467.
APA	Zhang, Zhongqiong,Wu, Qingbai,Xun, Xueyi,Wang, Boxin,&Wang, Xunan.(2018).Climate change and the distribution of frozen soil in 1980-2010 in northern northeast China.QUATERNARY INTERNATIONAL,467.
MLA	Zhang, Zhongqiong,et al."Climate change and the distribution of frozen soil in 1980-2010 in northern northeast China".QUATERNARY INTERNATIONAL 467(2018).