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Establishing a dynamic US federal national vegetation classi...

Establishing a dynamic US federal national vegetation classification process standard in partnership with non federal partners

作     者:Ralph H.Crawford 

作者单位:US Forest Service Research and Development 1601 North Kent Street RPC-4ArlingtonVirginia 22209 

会议名称:《ⅩⅪ International Grassland Congress and the Ⅷ International Rangeland Congress》

会议日期:2008年

学科分类:090503[农学-草业科学] 0909[农学-草学] 0905[农学-畜牧学] 09[农学] 0903[农学-农业资源与环境] 

关 键 词:vegetation types vegetation classification 

摘      要:正Introduction The overall purpose of this Federal National Vegetation Classification Standard(NVC) is to support the development and use of a consistent national vegetation classification in order to produce uniform statistics about vegetation resources across the nation,based on vegetation data gathered at local,regional,or national levels.

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