基于图像集成的西南地区大坝与区域生物多样性宏观关联分析  

A large-scale study on impacts of large dam on regional biodiversity in Southwest China based on integrated map

作　　者：李翀[1] 王昊[2] 彭静[3] 

机构地区：[1]中国水利水电科学研究院水环境研究所,北京100038 [2]北京大学生命科学学院,北京100872 [3]中国水利水电科学研究院国际合作处,北京100038

出　　处：《中国水利水电科学研究院学报》2010年第3期172-176,共5页Journal of China Institute of Water Resources and Hydropower Research

基　　金：四川大学水力学与山区河流开发保护国家重点实验室开放基金(0708);国家科技支撑计划课题(2008BAB29B09);关键生态系统合作基金(CEPF)

摘　　要：以西南地区水电开发与生物多样性的关系为研究对象,融合交叉水利界与生物界已有的数据资料与科研认识,基于USGS 90m精度的DEM数据和西南地区大坝数据库,在生成的数字河网上再定位大坝,并与西南地区生物多样性关键区域(KBA)电子地图图像集成。通过大坝与KBA的空间位置关系分析,发现大坝集中区与表征生物多样性的KBA区域不重叠,但水电开发,尤其是中小水电,同KBA区域的保护的冲突还是存在;西南地区大坝对于以陆面生物为主划分的KBA影响有限。在KBA中引入水生生物多样性后,大坝对西南山地生物多样性的影响将可以被客观的评价。The relationship between hydropower development in Southwest China and biodiversity protection is the main goal in the study.Based on knowledge of biology and hydrology,public DEM（USGS 90mD EM）and dam database are used to extract river network and identity the dam location.A GIS map is made by integrating the Dam map into Key Biodiversity Area（KBA）map.The study shows there isn＇t clear overlap between large dams and KBA,except part of mid or small dams,which brings about impact on protection of KBA.The large dams have a small inpact on KBA,bacause the KBA map is made based on land lives.When aquatic lives are added to KBA,the impact of dams on KBA will be significant.

关 键 词：西南地区 大坝 图像集成 生物多样性 

分 类 号：X176[环境科学与工程—环境科学]