全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...
资源科学  2011 

Evaluation of Rare Bird Value and Characteristics in Beijing Wetlands
北京市湿地珍稀鸟类特征与价值评估

Keywords: Rare birds value,Wetland,Market valuation method,Beijing
珍稀鸟类价值
,湿地,市场价值法,北京市

Full-Text   Cite this paper   Add to My Lib

Abstract:

Wetlands are one of the most productive ecosystems which have tremendous economic and social benefits on Earth.The relationship between birds and wetlands is pretty close,because birds have special sensitivity which is an important indicator to the wetland environment.By analyzing a large number of survey data about Beijing wetlands,a conclusion has been drawn that Beijing wetlands are generally rich in bird resources,comprising a total of 36 orders,89 families,and 393 species rare birds,accounting for 75.6...

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133