WANG Kai,YANG Taibao,HE Yi,et al.Research for Glaciers and Climate Change of A’nyê Maqên Mountain Nearly 30 Years[J].Research of Soil and Water Conservation,2015,22(03):300-303,308.
近30年阿尼玛卿山冰川与气候变化关系研究
- Title:
- Research for Glaciers and Climate Change of A’nyê Maqên Mountain Nearly 30 Years
- Keywords:
- A’nyê Maqên Mountains; RS; GIS; glacier change; climate change
- 分类号:
- P467;P343.6
- 摘要:
- 以阿尼玛卿山的冰川为研究对象，选取1992年、2001年、2010年3个时段的TM、ETM+影像，利用RS，GIS技术提取了阿尼玛卿山冰川边界，并结合距研究区较近的3个气象站点1960—2010年年降水量、年平均气温数据，对近20 a阿尼玛卿山地区冰川与气候变化关系进行了研究。结果表明：近20 a来，阿尼玛卿山冰川既有退缩也有前进，但整体呈退缩趋势。1992—2010年冰川面积从109.21 km2减少到99.34 km2，退缩了9.04%；1992—2001年年均退缩速率为0.71 km2/a，而2001—2010年年均退缩速率为0.38 km2/a，表明近10 a退缩速率减慢。气象数据表明，气温大幅度上升，降水量小幅度增加。温度升高是阿尼玛卿山冰川退缩的主要原因。
- Abstract:
- In order to analyze the variations of glacier in A’nyê Maqên Mountain, RS and GIS technology were used to extract the boundary. Landsat TM and ETM+ images of the years of 1992, 2001, 2010 were chosen and used. Combining mean annual precipitation and temperature data over the period from 1960 to 2010 from three meteorological stations near the study area, the research about the relationship between the variation of glacier and climate change over the past 20 years was conducted. The results suggest that A’nyê Maqên Mountain glacier cover was at the dynamic change status. However, the glacier cover showed a overall trend of retreat over the past 20 years. Glacier cover reduced from 109.21 km2 to 99.34 km2 during the period from 1992 to 2010 by 9.04% at a rate of 0.71 km2 per year. During 2001—2010 glacier cover had a retreat rate of 0.38 km2 per year, which indicated that the glacier retreat rate decreased. Meteorological data shows that there is an obvious increase of temperature, but the precipitation slightly increase, revealing that temperature increase is the vital cause of glacier retreat in A’nyê Maqên Mountain.
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备注/Memo
收稿日期:2014-07-17;改回日期:2014-08-17。
基金项目:国家自然科学资助项目“黄河上游晚更新世河流阶地和冰川演化对千年尺度气候变化的响应”（41271024）
作者简介:王凯(1989-),男,甘肃民勤人,在读研究生,研究方向为冰川变化与全球变化。E-mail:wk09@lzu.edu.cn
通讯作者:杨太保(1962-),男,山西运城人,博士,教授,博士生导师,主要从事自然地理环境变化研究。E-mail:yangtb@lzu.edu.cn