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TWINSPAN 과 Ordination 에 의한 운장산 삼림군낙과 환경의 상관관계 분석
정진철,장규관,최정호,장석기,오동훈 ( Jin Chul Chung,Kyu Kwan Jang,Jeong Ho Choi,Seog Ki Jang,Dong Hoon Oh ) 한국산림과학회 1997 한국산림과학회지 Vol.86 No.4
In order to determine ecological niches of forests in Mt. UnJang, the studies were analyzed on the methods of TWINSPAN and DCCA ordination. The results are summarized as follows : Six communities determined by TWINSPAN : Fraxinus mandshurica, Cornus controversa, Acer mono, Carpinus tschonoskii, Carpinus tschonoskii - Quercus variabilis, and Cuercus mongolica community . In the relations of major community and environmental factors, Fraxinus mandshurica, Cornus controversa, and Acer mono community were distributed valley or evenness in the rich of organic matter. Elevation was high comparatively. Carpinus tschonoskaii and Carpinus tschonoskii - Quercus variabilis community were distributed in the low elevation, in rich of MgO and CaCO₃. Quercus mongolica community were distributed in the high elevation, in low of MgO, CaCO₃,. The factors in influencing community distribution were elevation. The importance value in all the quadrats sampled, Quercus mongolica recorded the highest and the next values then came those Cornus controversa, Acer mono, Fraxinus mandshurica, Quercus variabilis, Carpinus tschonoskii, Acer pseudosieboldianum Lindera erythrocarpa, Styrax obassia and Lindera obtusiloba in the orders.
TWINSPAN 과 DCCA 에 의한 만덕산의 삼림군낙과 (森林群落) 환경의 상관 분석에 관한 연구
정진철,전경수,장규관,최정호 ( Jin Chul Chung,Kyung Soo Jeon,Kyu Kwan Jang,Jung Ho Choi ) 한국산림과학회 1994 한국산림과학회지 Vol.83 No.2
In order to determine ecological niches of forests in Mt. ManDeok, the studies were analyzed on the methods of TWINSPAN and DCCA ordination. The results are summarized as follows ; Four groups were determined by TWINSPAN : Styrax japonica. Quercus variabilis-Quercus mongolica, Carpinus laxiflora and Fraxinus mandshurica-Cornus controversa communities. In the relations of community structures and environmental factors, Stvrax japonica community were distributed in the rich site of magnesium and organic matter, Quercus variabilis-Quercus mongolica community in the low potassium, Carpinus laxiflora community in the low available phosphorus, and the factors in influencing community distribution were elevation. The importance value of Quercus variabilis recorded the highest in all the quadrats sampled and the next values then came those Cornus controversa. Quercus variabilis, Lindera erythrocarpa. Quercus mongolica, f`raxinus mandshurica. C;ornus controversa, Symplocos chinensis for pilosa, Acer mono, Caypinus laxiflora, and Styrax japonica in the orders. The species diversities of major dominant species recorded the highest value in the communities of Quercus variabilis-Quercus mongolica but they lowest value in the communities of Fraxinus mandshurica-Cornus controversa.
Ordination에 의한 대아댐 주변 산림 식생 분석
정진철 ( Jin Chul Chung ),장규관 ( Kyu Kwan Jang ) 한국산림과학회 2003 한국산림과학회지 Vol.92 No.1
In order to determine ecological niches of forests around Daea Dam, the studies were analyzed on the methods of TWINSPAN and CCA ordination. The results are summarized as follows: Four groups were determined by TWINSPAN ; Quercus dentata, Quercus variabilis, Quercus aliena and Zelkova serrata community. In the relations of community and environmental factors, Quercus dentata and Quercus variabilis community was distributed in the high elevation and low nutrition . Quercus aliena community was distributed in the high percentage of nutrition and in the low elevation . Zeliova serrata community was distributed in the height percentage of nutrition and in the from medium to low elevation. In the relations of major species and environmental factors, Quercus mongolica, Quercus dentata, Fraxinus sieboldiana, Lindera obtusiloba, Diospyros lotus, Rhododendron schlippenbachii, Sorbus alnifolia and Rhus trichacarpa were distributed in the high elevation and low nutrition. Zelkova serrata, Corylus heterophylla var, thunbergii, Fraxinus mandshurica, Celtis sinensis, Acer pseudosibolianum, Actinidia polygama and Acer mono were distributed in the high percentage of pH, Mg^++, C.E.C and CA^++ and in the low elevation. Tripterygium regelii and Ampelopsis brevipedunculata var, heterophylla were distributed in the high percentage of P^2O^5. Picrasma quassioides, Maackia amurensis, Ulmus pumila, Euonymus sachalinensis Albizzia julibrissin, Quercus aliena, Morus bombycis and Staphylea bumalda were distributed in the high percentage of Na and in the low elevation.
TWINSPAN 과 DCCA 에 의한 신갈나무군집과 (群集) 환경의 상관관계 분석
송호경(Ho Kyung Song),장규관(Kyu Kwan Jang),김성덕(Seong Deog Kim) 한국산림과학회 1995 한국산림과학회지 Vol.84 No.3
Vegetational data from 81 quadrats of Quercus mongolica communities in Mt. Odae and Mt. Jumbong were analysed by applying two multivariate methods : two - way- indicator species analysis(TWNSPAN) for classification and detrended canonical correspondence analysis(DCCA) for ordination. The dominant tree species of Quercus mongolica communities were found in the order of Quercus mongolica, Acer pseudosieboldianum. Tilia amurensis. Carpinus cordata. Acer mono, and Fraxinus rhynchophylla. The forest vegetation of Quercus mongolica community was classified into Quercus mongolica. Quercus mongolica - Carpinus cordata. and Quercus mongolica -Abies nephrolepis groups according to the TWNSPAN. The relationships between the distribution of dominant groups for forest vegetation and soil condition in Quercus mongolica communities were investigated by analysing elevation and soil nutrition gradients. Quercus mongolica group was distributed in the low elevation and poor nutrition area of total nitrogen, Quercus mongolica - Carpinus cordata group was distributed in the low elevation and good nutrition area of Mg^(++) and Ca^(++), while Quercus mongolica Abies nephrolepis group was distributed in =he high elevation and poor nutrition area of Mg^(++) and Ca^(++). The two dominant factors influencing community distribution were elevation and total nitrogen.