Excerpt from Park Science, Vol. 3: Spring 1983 Three important types of easily recognizable mechanical impacts observed were: (1) broken sod, which includes the imprinting, gouging, tearing, or shearing of the soil-vegetation complex, occurring most often when the Surface soil is wet or moist; (2) scuffing, including the slicing or abrasive removal of aerial vegetation, occurring in mesic or drier sites; and (3) pulverization, the fragmentation or disintegration of the soil pedestal or soil-vegetation complex that occurs with severe trampling, most commonly under xeric conditions where vegetation is discontinuous. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.