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尤溪县生物多样性保护优先地区分析     被引量:27

Assessing Biodiversity Conservation Priorities in Youxi County

文献类型:期刊文献

中文题名:尤溪县生物多样性保护优先地区分析

英文题名:Assessing Biodiversity Conservation Priorities in Youxi County

作者:李迪强[1] 林英华[1] 陆军[1]

第一作者:李迪强

机构:[1]中国林业科学研究院森林生态环境与保护研究所

年份:2002

卷号:22

期号:8

起止页码:1315-1322

中文期刊名:生态学报

外文期刊名:Acta Ecologica Sinica

收录:CSTPCD;;Scopus;北大核心:【北大核心2000】;CSCD:【CSCD2011_2012】;

基金:国家林业局重点资助项目 ; 野生动物管理模式研究资助项目

语种:中文

中文关键词:福建;尤溪县;生物多样性保护;优先地区;生态系统管理;保护优先性

外文关键词:ecosystem management; biodiversity conservation; conservation priority assessment

分类号:Q16

摘要:选择人类活动频繁的常绿阔叶林林区具有代表性的福建尤溪县进行了生物多样性保护的优先性分析。在多次实地调查基础上 ,利用野生动物野外实地样带调查数据 ,已有的珍稀濒危鸟、兽和植物物种的分布资料 ,同时结合利用地理信息系统软件 ARC/ INFO数字化 1 :1 0万林相图和 1 :5万地形图 ,建立了基于 GIS的尤溪县生物多样性信息系统。然后根据物种多样性、珍稀濒危物种保护和生态系统保护目标 ,确立了保护优先性分析原则 ,即珍稀濒危物种尽可能包含在保护区和保护小区内 ,同时在优先保护区尽可能包含更多的其它物种。用最新的森林分布图及调查物种分布与生境关系 ,生态系统在保护物种与生态系统功能等方面的作用等 ,提出了生态系统的保护优先地区。将提出保护优先地区与已建保护小区和保护点分布图进行叠加分析表明 ,保护小区和保护点的方法是保护珍稀濒危物种的有效方法 ,但是需要考虑保护小区之间的联系 ,在对大型哺乳动物保护时需要建立面积较大的自然保护区。最后 ,提出了建立自然保护区规划。
Identifying high priority areas for biodiversity conservation has been becoming a major endeavor for conservation biologists. Areas with high species richness, high concentration of endemic and endangered species and ecosystems of high ecoservice function have been considered as priorities for biodiversity conservation. Essential actions should be taken to avoid destroying the ecological environment in these areas during the process of economic development. In order to assess the effectiveness of protected areas/spots in Youxi County, Fujian Province, a systematic conservation planning was conducted in this paper by means of priority setting exercises. A biodiversity information system was established in the Youxi County. 1∶100000 forest map and 1∶50000 topology map were digitized based on GIS (ARC/INFO). A field wildlife transect survey was conducted at a series of diagonals of 5×5 km 2 grids selected according to a systematic sampling method from 1997 to1998 in Youxi County, totally 209 birds sightings and 20 mammals traces were recorded with Geographical Positioning System (GPS). The historical distribution records of the national protected birds, mammals and plants and the data from the field wildlife transect survey were also compiled based on GIS. Data of bird species richness, national protected birds, mammals and plants and ecosystems were used to determine priority areas for biodiversity conservation. First, a series of distribution maps of endangered birds, mammals and plants were produced for each 5×5 km 2 grid. Bird records from transect survey were regarded as biodiversity richness indicator, a series of representation grids to represent all bird species were selected based on an algorithm. The ecosystem priorities were determined based on evaluation on ecoservices, species diversity and human activities in ecosystems involved. Then, a priority map for biodiversity conservation was produced by the overlay of the priority maps of endangered species, representation grids for bird species and ecosystems. The result from comparing the distribution of protected areas/spots with the priority areas produced in this research shown that the special protected areas/ spots are one of the practical approaches to protect fragmented species habitats; all endangered plants and most of endangered birds and mammals are included in protected spots. However, the protected areas/spots are too small for large mammals to live and corridors between protected areas need to be established for species movement. Finally, a proposed reserve planning in this county was discussed.

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