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청옥산 삼림식생에 관한 연구 - 식물사회학적 분석방법으로 -
오승환,윤충원,배관호,홍성천 ( Seung Hwan Oh,Chung Weon Yun,Kwan Ho Bae,Sung Cheon Hong ) 한국산림과학회 1998 한국산림과학회지 Vol.87 No.1
The Mt. Cheongok is located at the northern part of Kyungsangpookdo from 37°00` 00`` to 37°05` 00`` latitude and from 128°55` 00`` to 129°00` 00`` longitude. The altitude of the summit is 1,276.5m. This study was carried out to classify forest communities by the methods of Zurich-Montepellier schools. And, it also might be useful for selection of plant species, forest conservation, and prompting vegetation succession. The forest vegetation in Mt. Cheongok was classified into 12 communities, 4 groups, and 4 subgroups. Rhododendron micranthum subgroup of Pinus densiflora for. erecta community and Fraxinus mandshurica community were not found in cool temperate forest, southern zone yet. According to the coincidence method, Pines densiflora for. erecta community was mainly distributed from altitude 450m to 1,100m and from upper slope to ridge, and Quercus mongolica community was dominanced in the range of over altitude 700m. Pinus densiflora for. erecta community, distributed in upper slope and ridge, is judged to be maintained in the future. But Pinus densiflora for. erecta community, distributed in below middle slope, is judged to be changed into deciduous hardwood forest.
인접 임분의 종류 , 계층 구조 및 식생단위에 따른 아까시나무의 이입에 관한 연구
윤충원(Chung Weon Yun),오승환(Seung Hwan Oh),이영근(Young Geun Lee),홍성천(Sung Cheon Hong),김재헌(Jae Heun Kim) 한국산림과학회 2001 한국산림과학회지 Vol.90 No.3
This study was conducted to investigate the effects of adjacent stand on the invasion of Robinia pseudoacacia plantations. The results were as follows. 1) Robinia pseudoacacia tended to invade into all directions regardless of the kinds of adjacent stands. But it was estimated that the invasion of Robinia pseudoacacia into adjacent stands could be very difficult, if the layer structure of adjacent stands were well developed. Whereas, it was estimated that Robinia pseudoacacia more rapidly intruded into adjacent stands, if adjacent stands were opened and bared. 2) Robinia pseudoacacia tended to invade into all aspects regardless of the kinds of vegetation units in the adjacent stands. But the dominance class of Robinia pseudoacacia in the adjacent stands showed a little differences among the vegetation units. The dominance class of Robinia pseudoacacia in Quercus aliena community and Quercus serrata community showed low level as +∼2, while the dominance class of Pinus densiflora community, Pinus rigida community, Quercus variabilis community and Quercus acutissima community represented high level as 1∼4. Also the dominance class of Isodon inflexus subgroup among three subgroups of Pinus densiflora community showed the lowest level as + ∼2.
아까시나무 ( Robinia pseudoacacia L. ) 조림지에서 천이의 예측과 조림학적 제어
윤충원(Chung Weon Yun),오승환(Seung Hwan Oh),이준혁(Joon Hyouk Lee),주성현(Sung Hyun Joo),홍성천(Sung Cheon Hong) 한국산림과학회 1999 한국산림과학회지 Vol.88 No.2
To get ecological information necessary for the prediction on succession and the silvicultural control of the black locust(R. pseudoacacia) plantation, classification of vegetation unit. competition of major species, and succession were analyzed. The results were as follows. Vegetation units classified in R. pseudoacacia forest were Quercus variabilis community, Persicaria perfoliata community, Styrax japonica community, Acalypha australis community, Typical community. Species diversity indices showed significant difference among the vegetation units. As a result of stand ordination by CCA method, arrangement of stands on Axis Ⅰ was correlated significantly with altitude, sand, silt and available phosphorus contents, and that on Axis Ⅱ was with total nitrogen, exchangeable calcium and kalium contents. It was judged that R. pseudoacacia plantation would be replaced by the mixed forest including Quercus spp., Acer spp., and Prunus spp. etc., native to Korea with the progression of succession as the results of analyses on competition of major species and successional tendency in R. pseudoacacia plantation.