| 澜沧江流域典型生态功能及其分区 |
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| 引用本文： | 陈龙,谢高地,张昌顺,刘春兰,陈操操,王海华.澜沧江流域典型生态功能及其分区[J].资源科学,2013,35(4):816-823. |
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| 作者姓名： | 陈龙 谢高地 张昌顺 刘春兰 陈操操 王海华 |
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| 作者单位： | 1. 北京市环境保护科学研究院,北京,100037
2. 中国科学院地理科学与资源研究所,北京,100101 |
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| 基金项目： | 国家科技部科技基础性工作专项(编号:2008FY110300)。 |
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| 摘 要： | 澜沧江流域以其地形极为复杂、生物多样性极为丰富、生态系统服务极为重要的特点,备受全球关注,是相关科学研究的理想区域.本文对澜沧江流域的碳蓄积、水资源供给、土壤保持和生物多样性等典型生态功能进行评估,并在此基础上对流域进行了初步的生态功能分区.结果表明,流域各生态功能从上游至下游均呈递增趋势.在此基础上,对流域进行综合生态功能分区,划分为3类5个区域:生态功能脆弱区(106个乡镇),占流域面积的53.09％;生态功能中等区(138个乡镇),占流域面积的23.20％;生态功能丰富区(82个乡镇),占流域面积的23.71％,又根据优势功能的不同将其分为3个生态功能丰富区.本研究揭示了流域内各功能区内乡镇所能提供生态功能的丰富程度以及面临的主要生态问题,并据此提出了相关的建议措施,为科学管理该流域的生态系统及可持续发展提供依据.
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| 关 键 词： | 碳蓄积 水源供给 土壤保持 生物多样性 生态功能分区 澜沧江流域 |
Ecosystem Function and Regionalization in the Lancang River Basin |
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| CHEN Long,XIE Gaodi,ZHANG Changshun,LIU Chunlan,CHEN Caocao and WANG Haihua.Ecosystem Function and Regionalization in the Lancang River Basin[J].Resources Science,2013,35(4):816-823. |
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| Authors: | CHEN Long XIE Gaodi ZHANG Changshun LIU Chunlan CHEN Caocao and WANG Haihua |
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| Institution: | Beijing Municipal Research Institute of Environmental Protection, Beijing 100037, China;Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China;Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China;Beijing Municipal Research Institute of Environmental Protection, Beijing 100037, China;Beijing Municipal Research Institute of Environmental Protection, Beijing 100037, China;Beijing Municipal Research Institute of Environmental Protection, Beijing 100037, China |
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| Abstract: | With highly complex terrain, extremely important ecosystem functions and rich biological diversity, the Lancang River Basin is of growing international concern. A large-scale investigation and multi-source data including sample data, inspection data, literature data and remote sensing data were used to assess typical ecosystem services in the basin, including carbon storage, water supply, soil conservation and biodiversity. Our results indicate that all ecological functions showed an increasing trend from upstream to downstream. On this basis, the Lancang River Basin was divided into five regions and three categories. The area with fragile ecological function accounted for 53.09% of the basin, including 106 towns in Yushu Prefecture in Qinghai Province, Qamdo Region and Naqu Region in Tibet. Determined by a combination of factors, such as climate, topography and vegetation, ecosystem function in this region is very fragile. The area with medium ecological function accounted for 23.20% of the basin, including 138 towns in Deqin County and Weixi County, west of Dali Prefecture, east of Lincang City and northeast of Pu'er City. However, with the unique geographical position in the Yunnan-Guizhou Plateau and Hengduan Mountains binding sites, this region is a hotspot for biodiversity conservation. The area with rich ecological functions accounted for 23.71% of the basin, including 82 towns in Xishuangbanna, part of Pu'er City and south of Lincang City. With favorable climatic conditions, complex vegetation structure and rich species, ecosystem function in this region is rich. We summarize the features of each region, and reveal the richness of ecological function provided by vegetation and the major ecological problems faced in each region. Last, we recommend methods to solve ecological problems in the basin. |
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| Keywords: | Carbon storage Water supply Soil conservation Biodiversity Ecosystem function regionalization Lancang River Basin |
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