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http://dx.doi.org/10.13047/KJEE.2015.29.4.590

Report on Forests Damaged Due to Cutting Trees Infected by Pine Wilt Disease  

Hong, Suk-Hwan (Dept. of Landscape Architecture, Pusan Nat'l Univ.)
Lee, Soo-Dong (Dept. of Landscape Architecture, GNTECH)
Publication Information
Korean Journal of Environment and Ecology / v.29, no.4, 2015 , pp. 590-598 More about this Journal
Abstract
Despite various control methods for pine wilt disease, the disease has been increasing at an alarming rate every year in Korea. Still there is a lack of research on the problems of the current methods used to curb the disease. One main method to control pine wilt disease is fumigation for eliminating the larva of the pine sawyer beetle (Monochamus alternatus) which is known as the vector insect for pine wilt disease. We surveyed and analyzed the amount of destroyed uninfected trees in the fumigated area by studying 32 survey plots ($100m^2$) in Miryang city. The destroyed trees' crown area was estimated by induced regression between root collar area and crown area of the remaining trees (coniferous tree: $R^2=57.4$, deciduous broad-leaved tree: $R^2=63.8$). According to the analysis results, the infected trees (cut trees) were 18.7% and cut trees which were not infected were 35.5% of the total tree population of the study area on the basis of total crown area. In case of pine trees, 8.4% of uninfected trees were cut off but 62% of uninfected deciduous broad-leaved trees including Quercus spp. were affected and damaged during the fumigation process. Since these broad-leaved trees dominate the sub-canopy layer of the forest, this indiscriminate interruption of broad-leaved trees has the adverse effect of depriving the public benefits such as shadow, a cooler weather, controlling humidity, etc.
Keywords
PINE SAWYER BEETLE(Monochamus alternatus); FUMIGATION; FOREST SUCCESSION;
Citations & Related Records
연도 인용수 순위
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