• Title/Summary/Keyword: postfire management

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Effects of Postfire Logging on Bird Populations and Communities in Burned Forests (산불 발생 지역의 피해목 벌채에 따른 조류 개체군과 군집의 변화)

  • Choi, Chang-Yong;Lee, Eun-Jae;Nam, Hyun-Young;Lee, Woo-Shin
    • Journal of Korean Society of Forest Science
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    • v.96 no.1
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    • pp.115-123
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    • 2007
  • We investigated the effects of postfire logging on bird populations and communities through 57 point counts in unburned, burned and logged burned plots of coniferous forests in Samcheok, Korea. We found that lower species richness, abundance, and diversity in logged plots where were controlled by a typical postfire management. As results of guild analysis for nest sites and food resources, postfire logging reduced densities of ground-shrub nesters, primary and secondary cavity nesters, but was also related to reduction in densities of some foraging groups such as timber drillers and foliage searchers. These results suggest that snag-retention is essential for birds in burned forests and that postfire logging is incompatible with the maintenance of bird populations and communities. Consequently we need to develope guidelines of postfire management for snag-retention in burned forests through intensive researches focused on some target species such as Great spotted woodpeckers Dendrocopos major.

Effects of Hillslope Treatments for Vegetation Development and Soil Conservation in Burned Forests (산불 피해 산림의 식생 발달과 토양 보존을 위한 사면 처리 효과)

  • Kim, Chang-Gi;Choung, Yeon-Sook;Joo, Kwang-Yeong;Lee, Kyu-Song
    • Journal of Ecology and Environment
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    • v.29 no.3
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    • pp.295-303
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    • 2006
  • Clear-cut followed by tree planting has been a conventional management practice in burned forests in Korea. Because this can considerably increase soil loss, hillslope treatments may be needed in order to improve soil stability at poorly regenerating areas. This paper reviews the effects of hillslope treatments, such as seeding, mulching and log erosion barriers, which have been applied to restore vegetation and conserve soil in burned forests in North America and Europe. Seeding has been the most common method for postfire restoration. However, the effects of seeding on vegetation cover and soil erosion are not clear and seeding with non-native species has been reported to inhibit regeneration of native vegetation. Mulching has been found to be effective at reducing soil erosion. However, this also can introduce non-native plant species and inhibit native plant regeration. Although studies on the effect of log erosion barriers are very few, it appears that log erosion barriers are effective in the period of little rainfall. Hillslope treatments for postfire restoration is not necessary for naturally regenerating areas and therefore, they should be restricted to the areas where regeneration potential is low and runoff and soil loss is considerable. Long-term monitoring is needed to assess the effectiveness of hillslope treatments on soil erosion, the introduction of non-native plant species and the inhibition of natural plant regeneration.