自然资源学报

自然资源学报 ›› 1999, Vol. 14 ›› Issue (4): 300-306.doi: 10.11849/zrzyxb.1999.04.002

• 论文 • 上一篇    下一篇

A CONSERVATION ASSESSMENT OF CENTRAL AMERICAN VEGETATION AND ECOREGIONS

LI Xiao jun, Timothy Boucher, Roger Sayre   

  • 收稿日期:1999-04-27 修回日期:1999-07-20 出版日期:1999-12-25 发布日期:1999-12-25
  • 作者简介:LI Xiao jun(1957-),male,Huh hut of Inner Mongolia,Doctor,researcher.His main study fiel disbiodiver sity conservan cyandecology.
  • 基金资助:

    国家"九五"重大基础研究预选项目;国家自然科学基金重大项目

LI Xiao jun, Timothy Boucher, Roger Sayre   

  1. 1. Conservation Science and Stewardship Department, Latin America and the Caribbean Division The Nature Conservancy, 1815 North Lvnn Street Arlington, VA 22209, USA;
    2. Open Research Laboratory of Environ mental Changes and Natural Disasters, Ministry of Education, Beijing 100875, China
  • Received:1999-04-27 Revised:1999-07-20 Online:1999-12-25 Published:1999-12-25

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摘要： Acomprehensive,standardized,andthematicallyappropriatemapofCentralAmericanvegetationandlandcovertypeswasdevelopedbyclassifyingtheremotesensedimagery(AVHRR)1km2

关键词: landscape level biodiversity, AVHRR, GAP analysis, ecoregions

Abstract: A comprehensive,standardized,and thematically appropriate map of Central American vegetation and landcover types was developed by classifying the remote sensed imagery(AVHRR)1km2 resolution using advanced digital image processing routines and expertise.The map identifies 17 remaining natural vegetation types.The classification accuracy of the map is estimated to exceed 80%.Using a GAP analysis approach,a map of existing and proposed protected areas was overlaid on the vegetation map to analyze the protection status of vegetation types and Ecoregions.

Key words: landscape level biodiversity, AVHRR, GAP analysis, ecoregions

中图分类号: 

  • Q948.15+6