Environmental Impact - Environmental assessments (EIS etc.)

Cotrell, C. (1997). Roads and habitat fragmentation. The Road-RI Porter Jan/Feb 1997: 12-13.

Abstract

Habitat fragmentation not only results in decreased habitat area and increased patchiness of the habitat, but also causes microclimatic changes along the patch perimeter that alters the vegetation structure of remnant forest. Reported depths of climatic and vegetational change in ecosystems of the eastern United States (40-60m) correspond to areas of observed behavioral modification in various vertebrate species (50m). The study in Medicine Bow-Routt National Forest demonstrates the pervasive influence roads can have at landscape level. Other issues regarding roads include poaching, soil erosion, noxious weeds, and pollutions.

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