• Journal of Environmental Impact Assessment
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• v.27 no.2
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• pp.114-123
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• 2018

For conservation of biodiversity, we designate and manage the major areas that are habitats of organisms as ecosystem protected areas. It is necessary to evaluate the biodiversity of protected areas relatively in order to establish strategies to protect and secure the biodiversity of protected areas. In this study, we selected evaluation indicators by which we can compare objectively the biodiversity of protected areas corresponding to forest ecosystem, and applied them to Mt. Jiri and Mt. Bukhan National Parks. We reviewed literatures to select evaluation criteria. Frequently mentioned criteria and the structure of the forest which plays an importantrole of forest biodiversity were selected as the evaluation criteria. As the result, the selected evaluation indicators were 7-species diversity, species richness, evenness, rarity, disturbance species, indigenous species, and forest structure. In Mt. Jiri and Mt. Bukhan National Parks, species diversity were 3.492 and 2.943, species richness were 8.998 and 9.793, evenness were 0.849 and 0.680,rarity were 11.976 and 10.783, and disturbance species index were 0.214 and 0.357 respectively. Both national parks had abundant indigenous species and showed various forest physiognomies and stable 4-layer structure. It was found that crown density was higher in Mt. Jiri. Most indicators were implied high biodiversity in Mt. Jiri and Mt. Bukhan national parks.

• Korean Journal of Environment and Ecology
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• v.33 no.6
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• pp.722-733
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• 2019

This study was carried out to provide basic information for the ecological preservation management of temple forest (Donghaksa, Gapsa, Sinwonsa) by investigating the ecological characteristics of vegetation structure of the Cultural Heritage Site in Mt. Gyeryongsan National Park based on the Braun-Blanquet vegetation survey method from September 2018 to May 2019. As a result of hierarchical cluster analysis, the forest vegetation was classified into 3 vegetation units (Zelkova serrata - Akebia quinata - Kerria japonica community, VU1; Quercus serrata - Callicarpa japonica - Carpinus cordata community, VU2; and Pinus densiflora - Prunus sargentii - Fraxinus sieboldiana community, VU3). The indicator species of each vegetation unit were 12 taxa, 8 taxa, and 6 taxa, respectively. The result of the importance value analysis showed that Z. serrata had the highest importance value in all vegetation units, and the result of the species diversity analysis showed that the species diversity of VU3 was 0.939, which was relatively higher than other vegetation units. The result of the CCA of correlation between vegetation units and abiotic environmental factors showed that VU2 had a negative correlation with altitude, and biotic environmental factors had no significant correlation with vegetation units.

• Journal of Korean Society of Forest Science
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• v.107 no.3
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• pp.245-257
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• 2018

The study was carried out to discover the forest vegetation structure in Hongdo Island, Jeonnam province. Vegetation data were collected by total of forty one quadrate plots using Z-M phytosociological method from June to August in 2017, and analyzed by vegetation classification, mean importance value and species diversity. As a result of vegetation type classification, Castanopsis sieboldii community group was classified at a top level of vegetation hierarchy. In the level of community, it was classified into Neolitsea sericea community and Carpinus turczaninowii community. N. sericea community was subdivided into Ficus erecta group(Vegetation unit 1) and Arisaema ringens group(VU 2). C. turczaninowii community was subdivided into Fraxinus sieboldiana group(VU 3) and C. turczaninowii typical group(VU 4). Therefore, it was classified into total of four vegetation units(one community group, three communities and four groups). As a result of mean importance value, Castanopsis sieboldii was the highest in VU 1, VU 2, VU 4, and C. turczaninowii in VU 4, respectively. In case of species diversity, VU 3 showed the highest among four units in species diversity index. In conclusion, the forest vegetation of Hongdo Island was classified into four units and seven species groups. Hongdo Island could be conclusively managed by community ecological approach for the units and groups. Also it was considered that a research for the succession to the evergreen broad-leaved forest should be more intensively proceeded near future.

• Journal of Environmental Policy
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• v.7 no.3
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• pp.141-160
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• 2008

The effects of disturbance on bird community were studied in Ssanggok Valley and Beopju Temple area, Songni Mt. National Park in $2006{\sim}2008$. We divided three sites by habitat condition such as traffic road(strong disturbance), trail(medium) and control(weak) site. During breeding and non-breeding seasons(n=12), number of species, number of individuals, species diversity and density did not differ among three sites, but in breeding season(n=9), number of species(Kruskal Wallis, $x^2$=10.32, p=0.006), number of individuals(Kruskal Wallis, $x^2$=7.118, p=0.028) and species diversity of birds(Kruskal Wallis, $x^2$=9.847, p=0.007) were significantly higher in trail site with medium disturbance than in other sites. In breeding season, nesting and foraging guild rate were not different among three sites. In guild analysis, hole was the highest nesting guild and canopy was the highest foraging guild in three sites.

• Korean Journal of Environmental Agriculture
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• v.3 no.2
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• pp.55-61
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• 1984

농업(農業)은 동식물(動植物)을 대상으로 하는 응용생태학(應用生態學)의 한 분야(分野)로 그의 발전과정(發展過程)은 환경(環境)과 밀접(密接)한 관계가 있다. 환경조건(環境條件)의 다양성(多樣性)은 대상생물(對象生物)의 종류(種類)를 풍부하게 하고 순화(馴化)된 생물(生物)의 사양(飼養) 과정에서 다양(多樣)한 농업형태(農業形態)를 발전시켰다. 생웅계(生熊系)는 자연(自然)의 한 단위로 구성요소(構成要素)들은 기능적(機能的)으로 통일성(統一性)을 유지하고 있다. 농생태계(農生態系)는 생산(生産)을 목표(目標)로 하는 동식물(動植物)을 중심(中心)으로 하는 생태계(生態系)로 자연생태계(自然生態系)와 기본적(基本的) 성질(性質)은 동일하나 인위적(人爲的) 요소(要素)가 크게 작용하고 있는 특리(特異)한 생태계(生態系)이다. 작물(作物)이나 가축(家畜)은 수천년에 걸친 생산력(生産力)의 증대(增大)를 목표(目標)로 인위적(人爲的)인 선발을 거친 것으로 자연조작하(自然條作下)에서 심한 경쟁(競爭)을 거치면서 진화(進化)한 야생생물(野生生物)들에 비하면 선천적(先天的) 포약성(胞弱性)을 갖고 있어 인간(人間)의 보호(保護)(에너지보조(補助))를 필요로 하고 있다. 농생태계(農生態系)는 공간적(空間的) 격리(隔離)와 구성종(構成種)의 단순화(單純化)로 공간적(空間的) 연쇄성(連鎖性)과 종다양도(種多樣度)가 큰 자연생태계(自然生態系)에 비하면 외적(外的) 충격에 대한 내부적(內部的) 완충능력(緩衝能力)이 약하다. 더우기 농생태계(農生態系)는 시간적(時間的) 연속성(連續性)이 없어 극상천이(極相遷移)단계에 달할 수 있는 시간적(時間的) 여유가 없어 생물상호간(生物相互間)의 관계는 초기(初期) 천이(遷移)단계의 특성(特性)인 종다양도(種多樣度)가 낮고 직선적(直線的)이고 단순(單純)한 먹이연쇄성(連鎖性)을 갖고 있다. 생물군집(生物群集)의 천이진행(遷移進行)에 따르는 종다양도(種多樣度)의 증가(增加)는 생물군집내(生物群集內) 현재량(現在量) 증가와 더부러 먹이 연쇄상(連鎖相)을 직선상(直線狀)에서 망상(網狀)으로 변화시키고 주된 물질(物質)${\cdot}$유전회로(流轉回路)를 포식(捕食)먹이 연소회로(連銷回路)에서 부식(腐食)먹이연쇄회로(連鎖回路)로 전환시켜 생태계(生態系)의 물질(物質)은 생태군집내(生態群集內)에 보존(保存)하는 능력(能力)을 증대(增大)시키고 토양(土壤)의 물리(物理) 화학적성질(化學的性質)을 개선하여 계내(系內) 물질(物質)의 유실(流失)을 억제하기도 한다. 농생태계(農生態系)는 생산성(生産性)의 증대(增大), 관리(管理)의 편의(便宜) 기타의 이유(理由)로 구성종수(構成種數)를 인위적으로 제한(制限)하고 관리(管理)를 통하여 발아(發芽), 생장(生長), 개화(開花)등 여러가지 생물학적(生物學的) 현상을 극도로 균질화(均質化)시키고 있어 어떤 생육단계(生育段階)의 생물(生物)이 넓은 면적(面積)에 동시에 존재하게 되는데 이것은 외적조건(外的條件)의 변동(變動)에 대한 감수성(感受性)을 증대시킨다. 이와 같은 자연생태계(自然生態系)와 농생태계(農生態系)의 생태학적(生態學的) 특성(特性)에 관한 이해(理解)와 인식(認識)은 농생태계(農生態系)의 생산성(生産性) 증대(增大)와 영구적(永久的) 유지(維持)를 위한 합리적(合理的) 관리(管理)를 위한 기본(基本)이 될 것이다.

• Korean Journal of Ecology and Environment
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• v.37 no.2 s.107
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• pp.227-235
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• 2004

Fish fauna and community structure were surveyed in the Nakdong River, Gumi City, Kyeongpook province from April 2001 to July 2002. During the surveyed Period, 39 species, 32 genera belonging to 10 families were collected. Cyprinid fish occupied 64.1% (25 species) and cobitid fish had 7.7% (3 species). Fourteen species(35.9%) of observed species were known as endemic species. The exotic fish was Micropterus salmoides (2.5%) . The dominant species were Zacco platypus (relative abundance: 36.7%) and Opsariichthys uncirorstris amurensis (22.7%). Carassius aurafus and Microphysogobio rapidus were numerous (4.0${\sim}$4.3%). The rare species comprising less than 0.15% were Acheilognathus koreensis, Aphyocypris chinensis, Iksookimia longicorpus, Coreoleuciscus splendidus, Rhinogobius giurinus, Sarcocheilichthys variagatus wakiyae, Silurus asotus astus, and Channa argus. It was found that the population density of carnivorous Opsariichthys uncirostris amurensis increased drastically in the mid-reach of the Nakdong river since it had been introduced from the other native rivers in the middle 1990s. Gobiobotia nakdongensis inhabit riffle (water velocity : 0.43${\sim}$0.67 m $s^{-1}$) of which the river bed is mainly sand. This species is considered to be in need of conservation. As the result of analyzing fish community in the surveyed area, the species diversity, evenness and dominant indices were 1.008, 0.663 and 0.196 respectively. The findings showed that the tributary, which the waterside plants were abundant and had various habitats, had a higher species diversity (1.112) than the main river (0.787). Sand mining had been disturbing the river ecosystem of the study stations 3, 11, 13 & 14, and these stations showed a quite low species diversity (0.421 ${\sim}$0.574).

• Korean Journal of Environment and Ecology
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• v.21 no.2
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• pp.149-160
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• 2007

This study was performed to clarify general characteristics of the bird community structure within the boundaries of Hallasan National Park. The surveys were made during April 2006 to February 2007, and the birds were identified and the individual number of those birds was counted up to 38 species and 2,323 individuals in total. Among the total 38 species, 27 residents, 6 summer visitors, 2 winter visitors and 8 passage birds were identified by migratory pattern categories. The most dominant species was Corvus macrorhynchos (14.81%), followed by the Hypsipetes amaurotis(12.66%), and the third was Carduelis sinica(10.33%), and next, Corvus corone (8.44%). About 31 species and 1,639 individuals of birds were sighted around Sallok road 1 (A), and 27 species and 693 individuals of birds were spotted around mountain trails (B), Consequently, it was found that [A] area abounds in more birds than [B] area. Species diversity (H') was distributed over the range of $1.34{\sim}2.56$ degrees in view of the surveyed areas by season. The maximum species diversity (2.56) was found in (A) area in the spring, and the minimum species diversity (1.34) was seen in [B] area in the winter. There are different distributional patterns of birds in terms of the altitude. It was also observed that there were differences in weather factors and food resources by the altitude.

• Korean Journal of Environment and Ecology
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• v.20 no.2
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• pp.188-199
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• 2006

The purpose of this study was to provide data for conservation management of Pinus densiflora forest by analyzing ecological characteristics and the change of Pinus densiflora community structure for fifteen years in Gayasan National Park. According to the results of TWINSPAN analysis of Pinus densiflora forest, there were twenty plots(unit: $500m^2$)and it was classified into seven community types. The dominant species were Pinus densiflora in canopy layer, Carpinus laxiflora, Quercus variabilis, Quercus serrata in the understory layer and Sasa borealis, Rhododendron mucronulatum, Rhus trichocarpa in the shrub layer. The index of shannon's diversity was from 0.6803 to 1.2559 per $500m^2$ and the range of species number was from twenty-seven to fourty. As a result of the change of Pinus densiflora forest structure, the importance percentage(I.P.) of Carpinus laxiflora, Quercus variabilis, Quercus serrata in the understory layer were increased for fifteen years. The index of shannon's diversity changed $0.2608{\sim}1.0124\;into\;0.5547{\sim}1.2567\;per\;500m^2$ and species number changed $14{\sim}26\;into\;26{\sim}34$ for fifteen year.

• Korean Journal of Environment and Ecology
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• v.3 no.1
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• pp.42-50
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• 1989

A valley and a ridge forest in Mt. Gaya area was studied to investigate forest structure in relation to altitude and part of slope. Sixty-three quadrats were set up in the valley forest along altitude of 600m to 1,000m and part of slope, and thirty-eight quadrats were set up in the ridge forest along altitude of 700m to 1,430m. According to the importance values, the valley forest was Quercus mongolica-Lespedeza maximowiczii community and the ridge forest was Pinus densiflora, Quercus mongolica-Rhododendron mucronulatum community. Similarity index between the valley forest community and the ridge forest community was 37.2%. Shannon's species diversities of the valley forest community and the ridge forest community were 1.3402 and 1.0098, respectively. According to importance values by crown stories and DCA ordination, successional trends of tree species may be from Pinus densiflora and Pinus koraiensis through Quercus mongolica to Quercus serrata and Carpinus laxiflora. As going from the lower part to upper part of the slope in the valley forest, the importance values of Quercus mongolica, Quercus aliena, Rhododendron mucronulatum and Lespedeza maximowiczii increased while those of Carpinus laxiflora and Fraxinus rhynchophylla decreased. With increasing elevation in the valley and ridge forest, the importance value of Pinus densiflora decreased while that of Quercus mongolica increased. In the valley forest, densities of canopy and shrubstratum increased as increasing elevation, and the number of species and species diversity decreased as increasing elevation and going from the lower part to the upper of slope. The range of similarity indices between parts of the slope, and the elevation belts of 100m in the valley forest were 66.6-69.2 and 25.9-79.8%, respectively. In the ridge forest, density and basal area of canopy tended to decreased as increasing elevation, and the range of similarity indices between elevation belts of 100m was 27.9-98.2%.

• Korean Journal of Environment and Ecology
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• v.26 no.1
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• pp.1-10
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• 2012

The habitats characteristics of Polypodium vulgare L. in Ulleung-do were investigated to compile basic data for conservation and restoration. Natural habitats were located at altitudes of 410~748m with inclinations of $12{\sim}80^{\circ}$. Sixty six vascular plants were identified from 10 quadrats in 4 habitats. Dominant species among the woody plants, based on importance value, were Acer pictum subsp. mono(49.52%) in the tree (T1) layer, Sorbus amurensis(28.99%) in the subtree (T2) and Schizophragma hydrangeoides(51.99%), Ligustrum foliosum(8.82%), Fagus engleriana(7.25%) in the shrub (S) layer. Importance value for members of the herb (H) layer were as follows: Polypodium vulgare 23.23%; Maianthemum dilatatum 9.65%; Phryma leptostachya var. asiatica 9.23%; Dryopteris crassirhizoma 8.40%; Carex shimidzensis 6.75% and Dystaenia takesimana 5.42%. The importance value of the last five species were high, so they were at affinity with Polypodium vulgare in their habitats. Species diversity was 1.18, and dominance and evenness were found to be 0.11 and 0.84, respectively. The soil types were sandy loam. Average field capacity was 30.42%, and the organic matter and pH were 17.95%, and 4.70. Correlation coefficients based on environmental factors, vegetation and soil analysis were showed that positive correlations between species diversity and species richness, whereas between species diversity and dominance, coverage of Polypodium vulgare and species richness were showed negative correlations.