敦煌阳关自然保护区鸟类多样性调查及分析  

Investigations and Analyses of the Birds Diversity in Dunhuang Yangguan Wetland Nature Reserve

作　　者：牟迈[1] 龚大洁[1] 孙坤[1] 蔡正旺[1] 谢建平 

机构地区：[1]西北师范大学生命科学学院,兰州730070 [2]敦煌市环境保护局,敦煌736200

出　　处：《干旱区资源与环境》2008年第8期111-115,共5页Journal of Arid Land Resources and Environment

基　　金：甘肃省555人才工程科研资助项目"黑河流域湿地资源保护及合理利用的环境效益研究"部分资助

摘　　要：敦煌阳关自然保护区地处我国西北内陆腹地，主要保护对象为湿地、候鸟和荒漠生态系统。2006年3月～2007年4月，对该保护区鸟类的种类、数量、分布和生境等进行了多次科学调查。综合文献记载，得知阳关自然保护区共有鸟类86种，隶属13目，30科，57属，其中留鸟13种，夏候鸟47种，冬候鸟5种，旅鸟21种，国家重点保护鸟类10种。鸟类区系以古北界成分为主，占繁殖鸟总数的70％，而东洋界种类仅2种。生境类型包括湿地、草原、灌丛和居民点等。近年来保护区内珍稀鸟类数量不断减少，主要影响因素是栖息地丧失，人类活动和气候蛮化等。Dunhuang Yangguan Wetland Nature Reserve is located in the hinterland of Northwest China and is made up of typical wetland areas in drought regions. It focuses on the conservation of wetland, desert ecosystem and migratory birds. More than 10 times of straight investigations were made on the species, population and ecological distribution of the birds in the Reserve during the period from March 2006 to April 2007. Along with the present documents, 86 species were recorded, which belong to 13 orders, 30 families and 57 genera. In them there are 13 residents, 47 summer migrants, 5 winter migrants and 21 kinds of passing birds, including 10 species under state - grade protection. Palaeoarctic realm plays an important role in the avifauna, accounting for 70% of the breeding birds and only 2 species of oriental realm. The habitats are wetland, grassland, bush and settlements. The population of rare birds in the Reserve is declining, mainly caused by the habitat loss, human activities and climatic changes. It＇s significantly important to protect the habitat for conservation plans.

关 键 词：干旱区 湿地 鸟类多样性 调查 影响因素 

分 类 号：Q958[生物学—动物学]