산화지의 입지와 임분특성 및 경영시업에 따른 식생변화 추이분석
Forest Stand and Site Characteristics in Post Forest Fire Area and Management Treatments for Optimal Vegetation Restoration
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초록
본 연구는 산불 피해지에서의 임분구조 및 입지환경인자를 분석함으로서 이에 따른 산화 피해정도를 모형화하고 산화피해지의 피해목 처리에 따른 구성종의 종다양도 및 그 식생회복 형태를 구명하고자 하였다. 입지환경인자에 의한 산화피해율간의 관계를 정준상관 분석 및 로지스틱 회귀분석한 결과, 해발고 200m, 100m, 사면경사가 30도 이상인 입지의 임분밀도가 높은 소나무 단순단층림이 산화 발생 피해율이 높은 것으로 추정되었다. 산화지 피해목 처리방법에 따른 식생회복 과정을 분석한 결과 피해목 존치보다는 피해목을 제거하는 것이 식생회복에 효과적이라 사료되었다. 따라서 산불피해지에 대한 식생회복을 위한 적절한 시업적 조치는 입지, 자생 수종 등을 복합적으로 고려하여야 할 것으로 사료되었다.
Abstract
This study was carried out to obtain the basic model to estimate damage degree from the correlation analysis between forest fire and site environment factors and to clarify the restoration trends thorough multi-temporal survey by observing species diversity followed by various treatments at damaged forest area over time. From the derived model, the damage degree of forest fire was higher in the area of dense coniferous stands composed of simple story at the elevation of about 100m and 200m, and on steeper slope area over 30 degree. As results of this study, fire damaged trees are needed to cut down and a mixed stand with deciduous and coniferous species from the same area is desirable for the future species composition on fire damaged forest. Thus, site characteristics, local species, and mixed stands are the main consideration to enhance the vegetation recovery.
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