检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
作 者:隋金玲[1] 张志翔[1] 胡德夫[1] 王民中[2] 付瑞海[2]
机构地区:[1]北京林业大学,北京100083 [2]北京市林业局野生动植物保护管理站,北京100029
出 处:《林业科学》2006年第12期83-89,共7页Scientia Silvae Sinicae
基 金:北京市林业局合作项目。
摘 要:于2003年7月至2004年9月调查北京市区21个绿化带内利用植物鸟类和现有树种中鸟类食源树种的种类和数量,记录到利用植物鸟类52种,占栖息于市区绿化带内被调查鸟类的40·63%;鸟类食源树种48种,占市区绿化带内树种的54%。对目前城市绿化中存在的问题进行探讨,提出通过绿化树种的选择与搭配来招引城市鸟类的措施,以期为北京市生态城市建设提供理论依据。The present paper investigated and analyzed species and quantities of the birds utilizing plants as total or part of their foods and the bird-feed trees at 21 separating green belts of Beijing urban area during the period between July 2003 and September 2004. Totally 52 birds eating seeds or fruits of plants and 48 bird-feed trees were recorded, and they accounted for 40.63% of birds habitated and 54% of the total trees appeared in the green belts, respectively. Based on the investigation and the analysis, problems existing in afforestation of Beijing urban area were discussed and measures of attracting urban birds through selections and arrangements of tree species were proposed. Therefore, results of the studies would provide theoretical bases for the ecological city constructions of Beijing.
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:216.73.216.117