| 近45a内蒙古浑善达克沙地湖泊群的变化 |
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| 引用本文： | 白雪梅,春喜,斯琴毕力格,宋洁.近45a内蒙古浑善达克沙地湖泊群的变化[J].湖泊科学,2016,28(5):1086-1094. |
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| 作者姓名： | 白雪梅 春喜 斯琴毕力格 宋洁 |
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| 作者单位： | 内蒙古师范大学蒙古高原环境与全球变化自治区重点实验室, 呼和浩特 010022;内蒙古师范大学地理科学学院, 呼和浩特 010022,内蒙古师范大学蒙古高原环境与全球变化自治区重点实验室, 呼和浩特 010022;内蒙古师范大学湿地环境与修复自治区工程实验室, 呼和浩特 010022,内蒙古师范大学蒙古高原环境与全球变化自治区重点实验室, 呼和浩特 010022;内蒙古师范大学地理科学学院, 呼和浩特 010022,内蒙古师范大学蒙古高原环境与全球变化自治区重点实验室, 呼和浩特 010022;内蒙古师范大学地理科学学院, 呼和浩特 010022 |
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| 基金项目： | 国家重点基础研究发展计划“973”项目（2012CB426508）、国家自然科学基金项目（41261008）、内蒙古自治区水安全协同创新项目、内蒙古自治区2014年硕士研究生科研创新项目（S20141013520）和内蒙古师范大学2014年度硕士研究生科研创新项目（CXJJS14067）联合资助. |
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| 摘 要： | 浑善达克沙地处于季风边缘区,其气候特性和人类活动决定了该地区生态系统的脆弱和环境变化的敏感性.目前,该区湖泊生态环境问题十分严重,对研究区的水资源、草原景观以及当地居民生产生活造成了严重影响.选取1969年1∶50000地形图所指示的面积≥0.01 km~2的175个湖泊为研究对象,结合1973-2013年的17期Landsat MSS/TM/ETM/OLI卫星遥感影像数据,对1969-2013年间的湖泊群变化进行了系统的研究和初步探讨.结果表明:1969年湖泊群总面积为502.04 km~2,而2013年其面积为303.42 km~2,总体呈萎缩趋势.其中面积萎缩和干涸的湖泊分别为88和85个,而面积扩张的湖泊仅有2个(人工筑坝所致).近45 a间,1970s-1980s湖泊面积波动性减少,而在1990s初期则出现持续上升状态.在1995-2011年湖泊面积总体下降,到2013年则出现微弱的扩张现象.从湖泊变化空间分布格局来看,萎缩和干涸的湖泊集中在该沙地腹地.
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| 关 键 词： | 浑善达克沙地 湖泊群 面积变化 荒漠化 |
| 收稿时间： | 9/1/2015 12:00:00 AM |
| 修稿时间： | 2015/12/24 0:00:00 |
Changes of lakes in Hunshandake Sandy Land in the past 45 years, Inner Mongolia |
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| BAI Xuemei,CHUN Xi,SIQIN Bilige and SONG Jie.Changes of lakes in Hunshandake Sandy Land in the past 45 years, Inner Mongolia[J].Journal of Lake Science,2016,28(5):1086-1094. |
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| Authors: | BAI Xuemei CHUN Xi SIQIN Bilige and SONG Jie |
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| Institution: | Key Laboratory of Mongolian Plateau Environment and Global Change, Inner Mongolia Normal University, Hohhot 010022, P. R. China;College of Geographical Science, Inner Mongolia Normal University, Hohhot 010022, P. R. China,Key Laboratory of Mongolian Plateau Environment and Global Change, Inner Mongolia Normal University, Hohhot 010022, P. R. China;Inner Mongolia Repair Engineering Laboratory of Wetland Eco-environment System, Inner Mongolia Normal University, Hohhot 010022, P. R. China,Key Laboratory of Mongolian Plateau Environment and Global Change, Inner Mongolia Normal University, Hohhot 010022, P. R. China;College of Geographical Science, Inner Mongolia Normal University, Hohhot 010022, P. R. China and Key Laboratory of Mongolian Plateau Environment and Global Change, Inner Mongolia Normal University, Hohhot 010022, P. R. China;College of Geographical Science, Inner Mongolia Normal University, Hohhot 010022, P. R. China |
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| Abstract: | The characteristics of climatic and human activity in the Hunshandake Sandy Land which is located in the margin monsoon area, determine the vulnerability of ecosystem and sensitivity of environment change. At present, the ecological problems of lakes in the area is very serious, which affects water resource, grassland landscape and local resident''s life and production. Choosing 175 lakes which each covers area more than 0.01 km2 based topographic maps in scale of 1:50000 and combining data with 17 stages of Landsat MSS/TM/ETM/OLI satellite remote sensing images during 1973-2013, we systematically studied the changes of lake areas during a period of 1969-2013 systematically. The result shows that the total area of lakes decreased from 502.04 km2 in 1969 to 303.42 km2 in 2013, which presents a shrinking trend overall in 88 shrinking lakes and 85 dried lakes, but only 2 lakes are expanding. Concretely speaking, the fluctuating downtrend of total lake areas occurred from the 1970s to the 1980s, continuously shows an upward trend in the early 1990s, the overall downtrend during 1995-2011, and slightly expanding trend after 2013. In the view of spatial distribution pattern, shrinking and dried lakes are distributed in the desert hinterland of the study area. |
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| Keywords: | Hunshandake Sandy Land lake group area change desertification |
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