Evaluating Relationships between Spatial Heterogeneity and the Biotic and Abiotic Environments
作者： Darrell E. Townsend , Samuel D. Fuhlendorf
DOI: 10.1674/0003-0031-163.2.351
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摘要: Abstract While most studies of heterogeneity have focused on describing patterns species or communities, few the relationships between biotic and abiotic environmental landscape-level gradients. Our study was designed to determine grazing (heavy, moderate, ungrazed), topographic position (upland vs. riparian), vegetation structure thermal environment (i.e., soil-surface temperatures) influence landscape heterogeneity. Biotic were evaluated by establishing 200-m transects that centered perpendicular a riparian zone so spatial variability could be determined along each transect which transcends maximum level Vegetation cover temperatures recorded at 1-m intervals transect. Bare ground increased leaf litter, grass cover, heights angle obstruction decreased with...
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