| 长江源典型区湿地对区域气候变化的响应 |
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| 引用本文： | 刘华,鞠洪波,邹文涛,赵峰.长江源典型区湿地对区域气候变化的响应[J].林业科学研究,2013,26(4):406-413. |
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| 作者姓名： | 刘华 鞠洪波 邹文涛 赵峰 |
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| 作者单位： | 1. 中国林业科学研究院资源信息研究所,北京,100091
2. 中国科学院遥感应用研究所,北京,100101 |
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| 基金项目： | 国家重大专项(E0305/1112/02);国家高技术研究发展计划(863计划)(2012AA102001) |
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| 摘 要： | 利用1977-2007年间的4期Landsat数据提取研究区湿地信息,分析湿地的动态变化特征和变化驱动因子.利用1971-2007年的气象数据分析研究区主要气候因子的变化趋势与特征,并进一步分析湿地变化与不同气候因子的相关性.结果表明:1977-2007年间,研究区湿地数量萎缩,总面积减少了约37％；湿地质量发生明显退化,主要表现在二、三级湿地即沼泽和滩地退化为草地和裸岩与沙地；近40年来,区域气候向着暖干化趋势发展；气温是影响湿地变化的最主要气候因素.
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| 关 键 词： | 长江源 湿地 气候变化 响应 |
| 收稿时间： | 2012/11/15 0:00:00 |
Response of Wetlands in Typical Area of the Yangtze River Source Region to Regional Climate Change |
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| LIU Hu,JU Hong-bo,ZOU Wen-tao and ZHAO Feng.Response of Wetlands in Typical Area of the Yangtze River Source Region to Regional Climate Change[J].Forest Research,2013,26(4):406-413. |
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| Authors: | LIU Hu JU Hong-bo ZOU Wen-tao and ZHAO Feng |
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| Institution: | Research Institute of Forest Resource Information Techniques, Chinese Academy of Forestry, Beijing 100091, China;Research Institute of Forest Resource Information Techniques, Chinese Academy of Forestry, Beijing 100091, China;Institute of Remote Sensing Applications, Chinese Academy of Sciences, Beijing 100101, China;Research Institute of Forest Resource Information Techniques, Chinese Academy of Forestry, Beijing 100091, China |
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| Abstract: | Landsat images of four periods (1977, 1990, 1997 and 2007) were used to extract the information of wetlands in the typical area of the Yangtze River source region. The dynamic changes of wetlands and its driving factors during 1977-2007 were analyzed. Meteorological data of 1971-2007 were used to analyze the climate change trends and characteristics of study area, and analyze the relevance of wetland change and climatic factors. The results indicated that, during 1977-2007, the total area of wetlands reduced by 37%. The quality of wetlands degenerated obviously, mainly in marsh and flood land transforming to grassland, bare land and sand land. The regional climate has been tending to warming and drying in recent 40 years and the temperature is the most important factor affecting the changes of wetlands in the study area. |
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| Keywords: | Yangtze River source region wetland climate change |
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