干旱区生态环境知识资源中心(Arid): 近20 a中国天山东段典型冰川变化及其气候响应

Arid

	近20 a中国天山东段典型冰川变化及其气候响应
其他题名	Change of Typical Glaciers and Its Response to Meteorological Factors in the Eastern Tianshan Mountains in China in Recent 20 Years
	黄晓然; 包安明; 郭浩; 孟凡浩; 张鹏飞
来源期刊	干旱区研究
ISSN	1001-4675
出版年	2017
卷号	34 期号:4 页码:870-880
中文摘要	冰川作为重要的淡水资源的存储体,也是气候变化的敏感指示器。在干旱半干旱区,冰川变化对人们的生产、生活和生态产生重要的影响。本文基于19902015年Landsat TM及ETM +遥感影像数据,利用雪盖指数法(NDSI)和阈值法,分析博格达峰及喀尔力克山的冰川面积变化,结合长时间序列的气温、降水数据分析天山东段典型冰川的气候响应。结果表明: ①博格达峰与喀尔力克山的冰川均呈现退缩趋势,与气温和降水的变化趋势一致。②博格达峰和喀尔力克山冰川面积变化在东南坡向有波动增加趋势,其他坡向则未出现该现象。③从两个冰川不同坡向的面积和面积重心分布变化分析,博格达峰冰川面积在东坡方向退缩速率最大,而喀尔力克山的冰川在东北坡方向退缩速率最大。④根据栅格气象资料分析,近四五十年博格达地区冰川面积退缩速率大于喀尔力克山地区,并且博格达峰降水量的增加对冰川的退缩起到的作用不大,喀尔力克山的降水量对冰川面积的退缩起到了一定的抑制作用。⑤通过对博格达峰地区和喀尔力克山地区不同坡向的冰川面积与年均气温、年均降水量进行Person相关性分析,博格达峰地区、喀尔力克山地区各个坡向的冰川面积变化与降水相关系数均很小。但博格达峰地区北、东北、东南坡向的冰川面积与区域气温变化相关系数较高,喀尔力克山地区东南、东北坡向的冰川面积与区域气温的相关系数高且显著性明显。分析其原因,在年内尺度上,博格达峰地区、喀尔力克山地区是湿季气温升高所致,干湿两季降水量的增多,并没有使得冰川整体的退缩有所减缓。
英文摘要	Glaciers constitute the most important fresh water resources in the world. However,they are reputed to be among the most sensitive indicators to climate change. In arid and semiarid areas,glacier changes affect considerably people’s livelihood and the means of production and even alter the ecology and environment. Therefore,research on the development of glacier changes is of great significance for sustainable development in arid and semiarid areas. Based on remote sensing data (Landsat TM and ETM +) acquired during the period of 1990-2015,in this study the NDSI and the threshold method were used to analyze the glacier changes in the Bogda and Karlik regions in combination with longitudinal precipitation and temperature data and to evaluate the different responses of the typical glaciers in the eastern Tianshan Mountains to climate change over the past 25 years. The results show that: ① The glaciers in both the Bogda and Karlik regions were in a shrinkage in accordance with the changes in precipitation and temperature; ② The glacier area change in these two regions had an increased volatility on the southeast slope but did not at other slope aspects; ③ The fastest glacial shrinkage occurred on the eastern slope in the Bogda region but on the northeastern slope in the Karlik region; ④ According to the analyzed results of the grid meteorological data in recent 40 or 50 years,the shrinkage rate of glacier area in the Bogda region was higher than that in the Karlik region,and the precipitation increase affected the glacier shrinkage was not significant in the Bogda region,but the precipitation increase restricted obviously the glacier shrinkage in the Karlik region; ⑤ Through the analysis of the Person correlation between the glacier area and the mean annual temperature and precipitation on different slope aspects in the Bogda and Karlik regions,the results revealed that the correlation between glacier area and precipitation was very low. However,the correlation coefficient between the glacier area and the regional temperature on the north,northeast and southeast slopes in the Bogda region was high,and the correlation coefficient between the glacier area and the regional temperature on the southeastern and northeastern slopes in the Karlik region was high and significant. The analyzed results also revealed that,at the annual scale,the glacier shrinkage in these two regions was mainly caused by the temperature increase,and the precipitation increase did not slow down the glacier shrinkage.
中文关键词	冰川变化 ; 气象因子 ; 气候响应 ; 博格达峰 ; 喀尔力克山 ; 天山
英文关键词	glacier change meteorological factor climate response Bogda Karlik Tianshan Mountains
语种	中文
国家	中国
收录类别	CSCD
WOS类目	GEOSCIENCES MULTIDISCIPLINARY
WOS研究方向	Geology
CSCD记录号	CSCD:6043694
来源机构	中国科学院新疆生态与地理研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/236007
作者单位	中国科学院新疆生态与地理研究所, 中国科学院荒漠与绿洲生态重点实验室, 乌鲁木齐, 新疆 830011, 中国
推荐引用方式 GB/T 7714	黄晓然,包安明,郭浩,等. 近20 a中国天山东段典型冰川变化及其气候响应[J]. 中国科学院新疆生态与地理研究所,2017,34(4):870-880.
APA	黄晓然,包安明,郭浩,孟凡浩,&张鹏飞.(2017).近20 a中国天山东段典型冰川变化及其气候响应.干旱区研究,34(4),870-880.
MLA	黄晓然,et al."近20 a中国天山东段典型冰川变化及其气候响应".干旱区研究 34.4(2017):870-880.