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오구균,이경재,임경빈 ( Koo Kyoon Oh,Kyong Jae Lee,Kyong Bin Yim ) 한국산림과학회 1988 한국산림과학회지 Vol.77 No.1
To analyze phytosociological characteristics of the Mt. Namsan nature park, Seoul, vegetation structure of north-east and south-west slopes, competition capability among species, vegetation structures of afforested species were studied with belt-transect and quadrat methods. And management plan of each vegetational zone was proposed by the results of this study and the other previous reports. Numbers of species and individuals of south-west slope were greater than those of north-east slope. But species diversity of northeast showed stability of 1.0, while that of south-west showed instability from 0.8 to 1.3. The floristic dissimilarity coefficient between two slopes showed 70-80% in which species composition between two slopes was much different. Quercus mongolica was a dominant species at north-east slope and Pinus densiflora at south-west slope. Competition capability among major species was resulted in deciduous trees$gt;Robinia pseudoacacia$gt;Populus alba × glandulosa$gt;Pinais densiflora, Quercus mongolica$gt;deciduous trees$gt;Pinus densiflora. Afforested vegetation at the Mt. Namsan, especially Pinus koraiensis, Abies holophylla, Picea abies, etc showed poor growth rate. The goal of the Nam-san nature park management is to conserve natural ecosystem as it is and, if necessary, to accerlerate restoration of the disturbed ecosytem to its nature by minimum energy input as possible. Management proposal was made for six vegetational management zone ; P. derasitZoru forest zone, Q. mongolica forest zone, deciduous forest zone, afforestation zone, R. pseduoacacia zone and landscape planting zone.
솔잎혹파리 피해적송림의 생태학적 연구 (Ⅲ) - 청원군 소나무군집의 (群集) 7년간의 식생변화분석 -
이경재,오구균,임경빈 ( Kyong Jae Lee,Koo Kyoon Oh,Kyong Bin Yim ) 한국산림과학회 1988 한국산림과학회지 Vol.77 No.3
To investigate and analyze the change in the forest community structure between non-attacked time(in 1980) and Beverly damaged time(in 1987) by pune gall midge, Thcodoplosis japonensis, four plots with five subplots were sampled at Cheongwon-gun of Chungcheungbuk-do. The total number of woody species per 0.2㏊ changed 32 in 1980 to 53 in 1987. According to the damage increasing. the importance value of the genus Quercus as a substituting species has sprung up. Especially the importance value of Quercus serrata and Q. aliena singnifieantly increased in the heavily insect infested forest. As to changes of forest community structure during 7 years, diversity of investigation structure has increased. The similarity indices between 1980 and 1987 were 52.9% and 49.7% in the understory and shrub stratum, respectively.
솔잎혹파리 피해적송림(被害赤松林)의 생태학적(生態學的) 연구(硏究)(III) -청원군(淸原郡) 소나무군집(群集)의 7년간(年間)의 식생변화분석(植生變化分析)-
이경재,오구균,임경빈,Lee, Kyong Jae,Oh, Koo Kyoon,Yim, Kyong Bin 한국산림과학회 1988 한국산림과학회지 Vol.77 No.3
충남(忠南) 청원군(淸原郡)의 적송림(赤松林)을 대상으로 솔잎혹파리무피해시기(無被害時期) 및 극심상태시기(極甚狀態時期)의 삼림군집구조(森林群集構造)의 변화내용(變化內容)을 분석하였다. 무피해시기(無被害時期)인 1980년에 4개의 조사구(調査區)를 선정하고 각(各) 조사구(調査區)에 5개씩의 소조사구(小調査區)를 설치한 후 식갱조사(植生調査)를 하였으며, 극심피해시기(極甚被害時期)인 1987년에 동일장소(同一場所)에서 재조사(再調査)를 실시하였다. 1980년의 출현수종수(出現樹種數)는 32종(種)이던 것이 1987년에는 53종(種)이었다. 솔잎혹파리피해(被害)가 심하여짐에 따라 대상수종(代償樹種)으로 참나무류가 발달하였으며, 졸참나무와 갈참나무의 상대우점치(相對優占値)의 증가(增加)가 유의적(有意的)이었다. 또한 피해가 심하여지자 삼림군집(森林群集)의 종구성상태(種構成狀態)가 다양(多樣)하여져 종다양도(種多樣度), 균재도(均在度) 등(等)이 증가하였다. 1980년(年)과 1987년(年)의 조사군집간(調査群集間)의 유사도지수(類似度指數)는 전체적으로 71.2%이었으나, 교목상(喬木上) 하층(下層) 및 관목층(灌木層)에서 각각 87.6%, 52.9%, 49.7%로서 교목하층(喬木下層)과 관목층(灌木層)에서 종구성상태(種構成狀態)가 매우 이질화(異質化)하였다. To investigate and analyze the change in the forest community structure between non-attacked time(in 1980) and severly damaged time(in 1987) by pine gall midge, Thecodoplosis japonensis, four plots with five subplots were sampled at Cheongwon-gun of Chungcheungbuk-do. The total number of woody species per 0.2ha changed 32 in 1980 to 53 in 1987. According to the damage increasing, the importance value of the genus Quercus as a substituting species has sprung up. Especially the importance value of Quercus serrata and Q. aliena singnificantly increased in the heavily insect infested forest. As to changes of forest community structure during 7 years, diversity of investigation structure has increased. The similarity indices between 1980 and 1987 were 52.9% and 49.7% in the understory and shrub stratum, respectively.