作者: Douglas A. Wikum , G. Frederick Shanholtzer
DOI: 10.1007/BF01866672
关键词: Land development 、 Cover-abundance 、 Environmental impact assessment 、 Shrub 、 Field (geography) 、 Vegetation 、 Forest management 、 Hydrology 、 Environmental science 、 Physical geography 、 Scale (map)
摘要: To document environmental impact predictions for land development, as required by United States government regulatory agencies, vegetation studies are conducted using a variety of methods. Density measurement (stem counts) is one method that frequently used. However, density shrub and herbaceous time-consuming costly. As an alternative, the Braun-Blanquet cover-abundance scale was used to analyze in several ecological studies. Results from these show requires only third fifth field time method. Furthermore, ratings better suited than values elucidate graphically species-environment relationships. For extensive surveys this provides sufficiently accurate baseline data allow assessment agencies.