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광릉 삼림의 식물군집구조 (植物群集構造) (Ⅰ) - Classification 및 Ordination 방법에 의한 소리봉지역의 식생분석 -
이경재(Kyong Jae Lee),조재창(Jae Chang Jo),이봉수(Bong Su Lee),이도석(Do Suck Lee) 한국산림과학회 1990 한국산림과학회지 Vol.79 No.2
To investigate the structure of the plant community of Soribong area in Kwangnung forest, forty-six plots were set up by the clumped sampling method. The classification by TWINSPAN and four kinds of multivariate ordination(PO, PCA, RA, DCA) were applied to the study area in order to classify them into several groups based on woody plants and environmental variables. The classification had been successfully overlayed on an ordination of the same data using DCA. The plots can be classified into four groups by TWINSPAN and DCA. The successional trends of tree species by both techniques seem to be from Pinus densiflora through Quercus mongolica, Q. serrata, Q. aliena, Carpinus laxiflora, Sorbus alnifolia to C. cordata, Fraxinus rhynchophylla. Cornus controversa in the canopy layer, and from Rhododendron mucronulatum. Rhus triohocarpa, Lespeoleza cyrtobotrya, Weigela subsessilis through Corylus sieboldiana, Lindera obtusiloba to Slaphylea bumalda, Callicarpa japonica, Lonicera maackii in the understory layer. As a result of the analysis for the relationship between the stand scores of DCA and environmental variables, they had a tendancy to increase significantly from the P. densiflora community to C. cordata community that n-as soil pH and the amount of humus, total nitrogen and exchangeable cations.
Ordination 방법에 의한 가야산 홍류동계곡의 식생군집에 (植生群集) 관한 연구
조재창,이경재 ( Jae Chang Jo,Kyong Jae Lee ) 한국산림과학회 1988 한국산림과학회지 Vol.77 No.1
This study was excuted to analyze the vegetational community structure of the Hongrudong valley the Mt. Gaya by three kinds of ordination techniques (polar, principal component analysis, reciprocal averaging; . Eleven sites were sampled with the clumped method to analyze the vegetation structure. The result suggested that Hongrudong valley forest was divided by Pinus densiflora and Quercus aliena community. The relation between stand scores of ordination and soil pH, humus content, soil moisture had a tendency to increase significantly from P. densiflora to Q. aliena community. RA was the most effective method of this study. RA ordination was showed that successional trends of tree species seem to be from P. densijlora through Q. variabilis to Q. aliena, Carpinus laxiflora in the upper layer and from Lespedeza cyrtobotrva, Rhus spp., Rhododendron schlippenbachii through Fraxinus sieboldiana, Lindera obtusiloba to Euonymus oxyphyllus, Weigela subsessilis, Callicarpa japonica in the middle layer.
광릉 삼림의 식물군집구조 (Ⅱ) - Classification 및 Ordination 방법에 의한 죽엽산지역의 (竹葉山地域) 식생분석 (植生分析) -
이경재(Kyong Jae Lee),최송현(Song Hyun Choi),조재창(Jae Chang Jo) 한국산림과학회 1992 한국산림과학회지 Vol.81 No.3
To investigate the structure of the plant community of Mt. Jookyup area in Kwangnung forest, thirty-seven plots were set up by the clumped sampling method. The classification by TWINSPAN and two kinds of multivariate ordination (RA, DCA) were applied to the study area in order to classify them into several groups based on woody plants and environmental variables. The classification have been successfully overlayed on an ordination of the same data using DCA, The plots can be classified into five groups by TWINSPAN and DCA. $quot;the successional trends of tree species by both techniques seem to be expected two ways in the canopy layer. The first is from Pinus densiflora to Carpinus laxiflora and the second is from Pinus densiflora through Quercus mongolica to Carpinus laxiflora. In the understory layer, it was expected that Rhododendron mucronulatum → Lindera obtusiloba, Symplacos chinensis for, pilosa, Viburunum erasum, Styrar obassia → Euonymus sachalinensis, Sorbus alnifolia. As the result of the analysis for the relationship between the stand scores of DCA and environmental variables, they had a tendency to increase significantly from the P. densiflora community to Quercus spp. community that was soil pH, total nitrogen, available phosphate and exchangeable potassium, sodium, calcium and magnesium.
솔잎혹파리 피해적송림의 (被害赤松林) 생태학적 연구 (Ⅳ) - 광주군 소나무군집의 (群集) 7년간의 식생변화분석 -
이경재(Kyong Jae Lee),조재창(Jae Chang Jo),류창희(Chang Hee Ryu),송근준(Keun Joon Song) 한국산림과학회 1990 한국산림과학회지 Vol.79 No.1
To investigate and analyze the change of the vegetation community structure between the severely damaged time (in 1980) and the restored time (in 1987) by the pine gall midge. Thecodoplosis japonensis, four plots with five subplots were sampled at Gwangju-gun of Kyongki-do. The total number of woody species per 500㎡ changed 39 in 1980 to 41 in 1987. According to the damage restoring, the importance value of the genus Quercus as substituting in the severely damaged forest showed a slight decrease but the importance value of Carpinus laxiflora, Sorbus alnifolia and Styrax obassia increased. As to changes of the vegetation community structure for seven years, the diversity of vegetation structure has increased. The similarity indices between 1980 and 1987 were 52.9% and 51.9% in the understory and shrub stratum, respectively.
Classification 및 Ordination 방법에 의한 용문산 삼림의 식물군집 구조분석
이경재(Kyong Jae Lee),조재창(Jae Chang Jo),유창희(Chang Hee Ryu) 한국식물학회 1990 Journal of Plant Biology Vol.33 No.3
To investigate the structure of the plant community structure of Mt. Yongmun in Kyonggi-do, fifty-four plots were set up by the clumped sampling method. The classification by TWINSPAN and DCA ordination were applied to the study area in order to classify them into several groups based on woody plants and environmental variables. By both techniques, the plant community were divided into two groups by the aspect. The dominant species of south aspect were Pinus densiflora, Quercus aliena, Q.mongolica, Carpinus laxiflora and of north aspect were Q. mongolica, Fraxinus rhynchophylla. The successional trends of tree species in south aspect seem to be from P. densiflora through Q. serrata, Q. aliena, Q. mongolica to C. laxiflora. As a result of the analysis for the relationship between the stand scores of DCA and environmental variables, they had a tendency to increase significantly from the P. densiflora and Q. mongolica community to C. laxiflora and F. rhynchophylla community that was the soil moisture, the amount of soil humus and soil pH.