Excerpt from The Grand Fir/Blue Huckleberry Habitat Type in Central Idaho: Succession and Management Over much of the West, development of habitat type classification based on potential natural vegetation (pfister 1984) has fostered a growing awareness of vegetation and its variability. Those who manage natural resources now recognize the need to foresee impacts of their activities on the present vegetation and to understand possible changes that may result. But in order to understand all facets of vegetal change, one's ...
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Excerpt from The Grand Fir/Blue Huckleberry Habitat Type in Central Idaho: Succession and Management Over much of the West, development of habitat type classification based on potential natural vegetation (pfister 1984) has fostered a growing awareness of vegetation and its variability. Those who manage natural resources now recognize the need to foresee impacts of their activities on the present vegetation and to understand possible changes that may result. But in order to understand all facets of vegetal change, one's perspective must encompass the often bewildering integration of cause and effect, and ran dom, cyclic, and temporal relationships that are manifest in succession dynamics. Logically, the first step is to reduce this complexity to a manageable number of recognizable units in the form of a classification. Habitat type classifications focus on the environmental (site) differences affecting vegetation. They provide a logical framework for studying succession and occasionally infer successional relationships but offer no classification of seral communities. As one approach to meeting this need, we present herein a classification of seral vegetation designed for general field use. In so doing, we have at tempted to exploit the fact that natural classifications, in contrast to technical ones designed for a specific use, have broader application and often provide greater prediction capability. The widely accepted habitat type system of classification is an outstanding example of a natural classification and as its originators, R. And J. Daubenmire have pointed out that system may be con sidered the closest to a natural one that allows the most predictions about a unit from a mere knowledge of its position in the system. We developed the following classification with these criteria in mind so that the rela tive position of a classified unit in the system can help predict the successional direction of that unit. By doing this, we found that some types of seral vegetation are strongly related to a specific disturbance; other types develop mainly through uninterrupted succession. These cause and effect relationships are presented in various ways in the sections dealing with classification as well as those dealing with management implications. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at ... 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.
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