• 한국조경학회지
• /
• 제33권6호
• /
• pp.78-89
• /
• 2006

This study was conducted to analyze the planting structure and ecological characteristics of greon spaces on the grounds of e Dangjin steam power plant. To achieve these goals, we surveyed existing vegetation, plant community structure, Plant volume and growth rate. Based on e vegetation analysis, existing vegetation was classified into six types: herbaceous species $(70.54\%)$, evergreen coniferous trees $(21.17\%)$, deciduous broad-leaved trees $(5.10\%)$, deciduous coniferous trees $(1.47\%)$, shrubs $(0.12\%)$, and other types $(1.59\%)$. The coal storage, office, and playground areas were community is the natural forest area where a Pinus thunbergii / Pinus densiflora community is distributed in terms of vegetation structure, species diversity, plant volume, and growth rate. The artificial green spaces(near the coal storage, office, playground areas) had a single-layer structure. Species diversity indices of the artificial green areas were $0.1655\~0.4807$ compared to 0.8628 in the natural forest, which presented a good growth environment. Also, the plant volume in the artificial green space was lower than that of the natural green space. Therefore, it would be desirable to develope a multi-layer structure similar to that of the vegetation in the natural green space in order to improve the amount of plant volume. The plant-damage ratio of Pinus thunbergii was $52.48\%$ in the coal storage area, and $8.48\~ 11.52\%$, in the other survey areas. Also, the vitality of Pinus thunbergii was $15.45k{\Omega}$ in the coal storage areas, which indicates bad growing conditions. This suggests that soil characteristics and dust have a bad impact on growth. The investigation into deciduous tres' growth status showed that appropriate plants would be Albizzia julibrissin, Acer palmatum var. sanguineum, Acer palmatum, Malus spp., Prunus sargentii.

• The Korean Journal of Ecology
• /
• 제15권3호
• /
• pp.231-246
• /
• 1992

In order to estimate effects of air pollution for pinus thunbergii forests arounding onsan industrial complex, structure of forest vegrtation was surveyed. In the survey of forest vegetation, pinus densiflora have been died or being withered, and importance value(I.V) of rhododendron mucromulatum and lespedeza spp. were low at the vicinity of industrial complex. Especially lespedeza maximowiczii and l. maritima were not entirely appeared at the vicinity of industrial complex. I.V. of quercus serrata, robinia pseudoacacia and alnus firma were preferably high at the vicinity of industrial complex, and those of smilax china, rubus crataegifolius and rhus trichocarpa were similar at every site and it could be guessed that those had a tolerance. Number of species had a difference over 10 species at the vicinity of industrial complex as compared with those of remote sites, and species diversity showed highly at the farther sites of industrial complex, and also at the low layer, number of species, species diversity and evennes were low at the vicinity of industrialcomplex and species weakened to air pollution were disappearing. It was possible that forest vegetation would be changed from pinus spp. to community of a. firma and r. pseudoacacia.

• Journal of Forest and Environmental Science
• /
• 제30권1호
• /
• pp.76-84
• /
• 2014

This study was performed to monitor the effects of water level change on changes of landscape, vegetation community, and species diversity of riparian forest. Hantan river dam, study area, has been constructed in the area of Chansoo-myeon, Pocheon-si and Yeoncheon-eup, Yeoncheon-gun, Gyeonggi-do, which is a dam for flood control only in flooding season. Landscape changes were notable after the construction of coffer dam, and the changes were caused by water level increase in areas of riparian forests which consisted of mainly withered willow as a dominant species in the flooding season. It changed vegetation communities of riparian forest from Phragmites japonica and Salix koreensis to Phragmites japonica. Species diversity index was lowest in 2010 when the coffer dam was constructed and showed an increasing trend later. Thus, this study is well in agreement with a previous report that plants of the genus Salix wither by muddy water during flooding and also suggests, controlling water level of river and prediction of water level change's effects should be considered when any facilities are planned.

• 환경영향평가
• /
• 제23권3호
• /
• pp.208-219
• /
• 2014

This work aims to establish the landscape ecological countermeasures to improve the sustainability of urban mountain forest and to enrich the biodiversity in twenty mountains of the Seoul Metropolitan City. Landscape ecological analysis was conducted based upon various criteria, such as area and elevation of mountains, flora, naturalized plants, vegetation, forest types, mountain trails, and public facilities. Various measures were suggested for the better maintenances of floristic diversity, introduced plants, vegetation and forest types of urban mountain forests. Sustainable recommendations for land use adminstration were developed for the preparations of a climate change-adapted urban mountain forests, as well as rational managements of ecosystem, walking trails, and public facilities within mountain forest. Rich and diverse natural vegetation as well as high floristic diversity were reported at mountains with higher elevations, larger area size, and rich landscape diversity. Mountains with low elevation, small size with easy public access, however, might require an urgent action to decrease the burdens by anthropogenic disturbances and urban development.

• The Korean Journal of Ecology
• /
• 제27권2호
• /
• pp.79-86
• /
• 2004

An extensive study of the vegetation characteristics of the Hamersley Ranges, a mountainous desert area of north-west Australia, facilitated the comparison of plant species diversity measures with mountainous deserts of other parts of the world. Alpha diversity was defined as the number of species co-existing at local scales and was found to average 18 species per 0.1 ha for the Hamersley Ranges. This was found to be similar to seven other mountainous deserts in North and South America, and southern Africa. Variation in alpha diversity between these deserts was found to considerably lower than within deserts, suggesting that local processes control species richness at local scales. Beta diversity, defined here as turnover in species composition at various spatial scales, can be measured in many ways. For the Hamersley Ranges, Wilson's β ranged from 1.2 to 1.6 for five sites along a topographic gradient, whereas Whittaker's β between different plant communities was found to average 0.93. Comparable data was not found for other desert areas, but comparisons to non-desert areas suggest beta diversity within landscapes is relatively high and is likely to reflect the considerable landform heterogeneity of the Hamersley Ranges. 55∼70% of species were shared between different landscapes of the Hamersley Ranges; comparisons to other regions suggest beta diversity at this scale is relatively low. Gamma diversity, the number of species over large spatial extents, was successfully compared using regression analysis of the log-log species - area relationship. This revealed that the northern Sonoran desert has significantly less species than the Nama (inland) Karoo and Hamersley Ranges over medium spatial extents, but species numbers were similar at a regional scale. Several constraints to the valid comparison of species diversity were identified, including lack of standardisation of sampling techniques, the wide range of measures employed, general lack of published data, and the influence of the various components of spatial scale on most diversity measures. Recommendations on how to improve future comparative work are provided.

• 한국산림과학회지
• /
• 제102권4호
• /
• pp.587-600
• /
• 2013

남한 자생 향나무의 산림식생 관리방안을 위해 ZM 식물사회학적 방법에 의해 군락단위 및 그 하위단위를 분류하고, 식생유형별 피도값을 이용하여 NMS와 지표종분석을 실시하였다. 향나무군락군은 총 2개 군락과 4개 군 및 6개의 소군으로의 분류체계를 가졌으며 총 7개의 식생단위로 분류되었다. NMS 분석결과 설명률이 높은 1축(13.8%) 및 2축(69%) 으로 나타내었으며, 종합설명력은 31%로 나타났으며, 내륙(동강)지역, 동해안지역과 울릉도지역이 명확하게 구분되어 나타났다. 식생단위별 지표종을 분석한 결과 89종이 유의성 있게 분석되었다. 식생단위별 종 다양도, 균재도, 종내경쟁 등을 분석한 결과 종다양도에서는 회양목군락 굴참나무군의 하위단위인 개박달나무소군이 1.17로 가장 높게 나타났고, 곰솔군락 쥐똥나무소군의 하위단위인 전형소군이 0.67로 가장 낮게 나타났다. 종간 경쟁지수에서는 분꽃나무군이 0.46으로 가장 작았고, 섬벚나무소군이 0.80으로 가장 높게 나왔으며, 전체적으로 0.7내외로 나타났다.

• 한국환경과학회지
• /
• 제32권5호
• /
• pp.329-341
• /
• 2023

We surveyed the vegetation of an ecological landscape preservation area (legally protected conservation areas or national parks) and the surrounding areas of Mt. Cheonggye, Republic of Korea, to explore the conservation implications for preservation areas and surrounding transition areas. We calculated diversity indices to identify the properties of the preservation and surrounding areas that are relevant to conservation efforts. We then compared the plant community composition between the areas using field and quadrat surveys in the preservation and surrounding areas. The cover of the dominant species in all tree and herb layers was markedly higher in the preservation area than in the peripheral zones. The species richness indices were significantly higher in the preservation area than in the peripheral zones. Ordination using detrended canonical correspondence analyses showed that the cover of the dominant tree species and rocks could explain the distribution of plant species in the Cartesian space of the ordination. Our results demonstrate that physiognomically designated protected areas match well with ecological data based on diversity indices and ordination analyses and that disturbances in the areas surrounding the ecological landscape of preservation areas can have considerable impacts on plant diversity indices. Hence, the preservation and management of surrounding areas are essential conservation elements for protecting the entire ecological landscape of preservation areas.

• The Korean Journal of Ecology
• /
• 제15권4호
• /
• pp.337-344
• /
• 1992

A study on the secondary succession and species diversity was conducted at burned sites of which pinus densiflora forest and its floor vegetation was almost destroyed by the forest first in the mts. todok, sansong and palgong from 1977 to 1986. The changes of vegetation during period the year to 11th after fire occurred miscanthus sinensis var. purpurascens $\rightarrow$ miscanthus sinensis var. purpurascens-lespedeza cyrtobotyra $\rightarrow$ lespedeza cyrtobotyra $\rightarrow$ lespedeza cyrtobotyra-quercus serrata community. The biological spectra based on $SDR_3$(%) and SP(%) were $H-D_1-R_5-e$ types. The species diversity generally decrease from miscanthus to lespedeza stage and reached minimum at stage of lespedeza, and after that a litter increase for lespedeza-quercus stage. The species distribution curves showed a decrease from miscanthus to lespedeza stage and slight increase at lespedeza-quercus stage in evenness.

• 한국습지학회지
• /
• 제20권4호
• /
• pp.398-409
• /
• 2018

최근 유기농법이 확산되며 벼농사와 더불어 맛과 영양소 측면에서 월등하게 높은 가치를 평가받는 미꾸리를 활용한 생태농법이 농업과 어업이 결합된 차세대 산업으로 급부상하고 있는 추세이다. 본 연구는 복합생태농업이 식생다양성 기능에 미치는 영향을 알아보기 위해 수행하였다. 연구방법은 식생조사를 통한 식물학적 분류를 통해 분석하였다. 전체 연구대상지에서 식생조사 결과 38과 100속 107종 20변종 127종류가 출현하였다. 둠벙이 있는 복합생태논에서는 출현하였으나 둠벙이 없는 대조논에서 출현하지 않은 종은 총 15종류(Taxa)의 차이로 확인되어 둠벙의 유무에 따라 식생의 수분요구도 차이로 나타난 결과로 판단된다. 또한 생활형 분석결과 둠벙의 유무에 따라 접지, 일년생, 수생식물의 차이도 확인되었다. 출현한 귀화식물도 전국적으로 널리 분포하는 종으로 분석되었다. 습지출현빈도 분석결과 둠벙이 있는 복합생태논이 대조논에 비해 절대습지식물과 임의습지식물의 비율이 높게 나타났다. 본 연구결과 생육환경이 다양할수록 식생다양성은 높아질 것으로 판단된다. 하지만 유형별 통계적 유의성은 확인되지 않아 식생다양성 및 생물다양성 증진을 위해서 향후 둠벙의 유무, 면적, 둠벙의 깊이, 수문, 수질환경, 토양환경 등 다양한 환경적 요인 찾는 추가적인 연구가 필요하다고 판단된다.

• 한국산림과학회지
• /
• 제96권5호
• /
• pp.520-527
• /
• 2007

Biomass and species diversity of understory vegetation after fertilization were studied for 28-year-old Quercus acutissima plantation (MQA), 29-year-old Pinus densiflora plantation (MPD), 8-year-old Betula platyphylla var. japonica plantation after coal reclamation (YBP), and 4-year-old Pinus densiflora plantation after forest fire (YPD) in central Korea. Nitrogen + phosphorus + potassium (6:4:1) fertilizer was applied for 3 years from 2004. Thereafter photosynthetically active radiation (PAR) and understory species richness and diversity were measured in late July-early August 2006. PAR (${\mu}mol\;m^{-2}S^{-1}$) was higher at the fertilization treatment (100.9) than at the control (67.0) for MQA while was lower at the fertilization treatment (156.5) than at the control (268.7) for MPD. Total understory biomass (t $ha^{-1}$) was lower at the fertilization plot (1.8) than at the control plot (3.0) for YPD, however, there were no differences in biomass between fertilization and control plots for MQA, MPD and YBP. Total species number of understory vegetation was higher for fertilization than for control at MPD (47 vs. 45) and YPD (21 vs. 13), and was higher for mature plantations (33 vs. 37 for MQA and 47 vs. 45 for MPD) than for young plantations (16 vs. 16 for YBP and 21 vs. 13 for YPD). Species richness and diversity were higher at the fertilization treatment than at the control for MQA, YBP, and YPD while were lower at the fertilization treatment than at the control for MPD, however, the differences were not statistically significant. Our results indicate that there were no consistent patterns in light conditions, biomass and species richness and diversity of understory vegetation following fertilization. More detailed long-term studies with different fertilizer applications would be necessary to conclude the influence of fertilization on understory vegetation in the region.