• Journal of Forest and Environmental Science
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• 제32권2호
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• pp.182-188
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• 2016

In this study 'forest design in waterside unused land' of 'waterside area' in the specificity that multilateral, including landscape, recreation, social and environmental aspects in the space, taking into account by multiple factors :Raise 'practicality' than a functional management and police to hang out with, each element is usually way to improve the beauty. There is currently carried out waterside green area creation, which is artificial plantation and open spaces only emphasizing 'landscape' with lacking multi-function purpose, as a 'forest design in waterside unused land' strategy but it should be lowered by performance in this strategy. And the study suggested a strategy which prepared cultural and social infrastructure to be able to attract different fund and build local character as an alternative demand plan considered environmental character as a top priority.

• 한국환경복원기술학회지
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• 제12권3호
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• pp.106-115
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• 2009

Knowledge about how to stabilize soil structure is essential to conserve soil systems and maintain various biogeochemical processes through soil. In urban area, soil structural systems are degraded with inappropriate management and land use and become vulnerable to erosion. We analyzed the structural changes of surface soils with different land uses, i.e., forests, parks, roadside green area, riparian area, and farmlands (soybean fields), in the Anyang Stream Watershed in order to find the factors influencing the stability of soil structure and the implication for better management of surface soil. Soil organic matter contents of other land use soils were only 18~52% of that in forest soils. Soil organic matter increased the stability of soil aggregates in the order of soybean fields < roadsides < riparian < parks < forests and also reduced soil bulk density (increased porosity). The lowest stability of soybean field soils was attributed to the often disturbance like tillage and it was considered that higher stability of park soils comparing to other land use soils except forests was owing to the covering of soil surface with grass. These results suggest that supply of soil organic matter and protection of soil surface with covering materials are very important to increase porosity and stability of soil structure.

• 한국환경과학회지
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• 제31권11호
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• pp.901-910
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• 2022

The aim of this study was to investigate the amount (i.e., retention volume) and chemical composition of Natural volatile organic compounds (NVOCs) across different sites in a temperate forest. The three forest sites that were considered include riparian zones (site 1), streams (site 2), and densely-canopied areas (site 3). From May to October 2021, a mini pump was used to measure the collected NVOCs. These measurements were conducted once a month, from 10:30 am to 11:30 am; these times encompass peak visitation times. In the tree layers of the site 1 and 2, Quercus acuta was dominant, whereas Camellia japonica dominated their subtree layers. On the other hand, the tree layer of site 3 was dominated by Castanopsis sieboldii, whereas Camellia japonica dominated its subtree layer. The retention volume and chemical composition of NVOCs was as follows: benzaldehyde (107.528ppm), α-pinene (37.868ppm), linalool (16.258ppm), eucalyptol (14.818ppm), and sabinene hydrate (14.679ppm). In particular, the retention volume of benzaldehyde decreased as temperature increased. In contrast, the retention volume of α-pinene increased as the temperature increased. The differences in forest topography across the studies sites were in the following order: riparian area> forest area> stream area.

• 환경영향평가
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• 제13권3호
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• pp.137-151
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• 2004

Many of today's environmental problems are regional in scope and their effects overlap and interact. The purpose of this paper is to developed a simple method for an integrated assessment of environmental conditions across the Mid-Nakdong River Region, by combining data on land use, impervious cover, roads, streams, riparian areas, forest patches, population, pollutant loadings, soil erosion and topography. A cluster analysis was used to identify groups of sub-watersheds with similar environmental characteristics. The mean value for each group was used to find watershed that may be more vulnerable to future environmental degradation. Watersheds in cluster I and II had high amount of forest, but the amount of riparian vegetation was low. Watersheds in cluster III, which located in the middle Geumho River and the main course of Nakdong River, had a greater proportion of their agriculture, a greater proportion of agriculture on steep slopes, and less forest adjacent to streams. Watersheds in cluster IV and V were in the most urbanized areas of the region. The principal adverse impacts for watersheds in this group were high scores for urban area, impervious cover, pollutant loadings, population density, forest fragmentation, and low amounts of forest and riparian forest cover. Notwithstanding the exploratory nature of cluster analysis, it appears to be a useful tool for grouping watersheds with similar environmental characteristics.

• 한국환경생태학회지
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• 제32권1호
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• pp.105-117
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• 2018

금강의 하천관리의 실질적인 자료를 얻고자 본류와 미호천의 30지소에서 수변식생지수를 이용하여 건강성평가와 다변량식생분석을 하였다. 그 결과 금강본류와 미호천에서 출현한 식물군락은 54개이었고, 식물상은 75과 185속 243종 2아종 21변종 2품종 268분류군이었다. 수변식생지수는 평균 38.3(3.3;G-D1 ~ 66.7;G-U2, G-U4, G-M3)으로 이 지역의 하천의 건강성은 보통(C등급)으로 평가되었다. 하천의 건강성은 금강본류의 상류가 가장 높았고, 금강본류의 하류에서 가장 낮았다. 수변식생지수와 수질의 클로로필-a의 함량과의 관계는 관련성이 낮게 나타났다. 집락분석결과, 식생은 바랭이군락 그룹, 갯버들군락 그룹, 개망초군락 그룹, 환삼덩굴, 버드나무, 물억새 그리고 달뿌리풀 군락이 우점하는 그룹, 망초와 물피 군락이 우점하는 그룹 등의 5개 집단으로 나누어졌고, 지소들은 비슷한 건강상태를 갖는 것들끼리 가까이 나타났다. CCA분석결과, 식생의 분포에 영향을 주는 환경요인은 식생면적, 인공구조물 면적, 수로면적, 지점폭, 수로폭, 제방높이 등의 물리적인 조건과 생물학적 요인의 출현종수였다. 이상과 같이 하천의 건강성이 높은 지역은 모니터링을 통하여 하천 식생의 지속적인 유지관리가 필요하고 건강성이 낮은 지역은 생태복원과 같은 적극적인 시행이 필요하다고 판단된다.

• 한국환경복원기술학회지
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• 제14권3호
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• pp.177-194
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• 2011

In order to assess ecologically for the restored detention basin in Joogyo creek, this study carried out a monitoring on the ecosystem of the detention basin. The study site was a small detention basin with an area $6,350m^2$, which had been established in March, 2004. The monitoring started in August and November, 2007. Terrestrial, riparian, and aquatic plants species have increased about 2 times at detention basin compared to that of streamside. Mammals, birds, reptiles, amphibians, aquatic insects and crustaceans were found more in species at detention basin, and especially there were a lot of more fish species. From the results, it seemed that various terrestrial, riparian, and aquatic ecosystem were made in the small detention basin.

• 한국환경복원기술학회지
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• 제19권6호
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• pp.111-121
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• 2016

This study was carried out to assess the riparian vegetation health in the fluctuation area and vicinity of reservoirs. The results of this study could be a basic data to improve the ecological function and establish green-network of waterside ecosystem. The study site is Daecheong lake reservoirs which the representative landscape of Geum river and with great number of visitors near metropolitan city. The 6 survey plots of 2 survey area were selected, survey area 1 had 4 survey plots and survey area 2 had 2 survey plots, and to compare the study results 4 control plots were selected in Gyeongcheon reservoir. The main dominant specie of survey sites was Salix koreensis in tree and subtree layer, were Salix koreensis and Salix glandulosa. in shrub layer. 2 survey plots of Samjeongdong and Kyeongcheon reservoir were assessed as 'Good', 2 survey plots of chudong were assessed as 'Fair' in vegetation health assessment. In the fluctuation area from flood water level to low water level, 58 populations of Salix koreensis were found in survey sites and Salix koreensis, Salix glandulosa and Acer tataricum subsp. ginale were found in control sites. The most adequate species at the condition affected by inundation impacts would be Salix koreensis and Salix glandulosa was more healthy at the area less affected by inundation. This study was carried out the vegetation health assessment on Daecheong reservoir which has been advanced natural succession for more than 30 years after the construction. Further, it should carry continuously out the research on the planting model of the waterside ecosystem for ecological restoration.

• The Korean Journal of Ecology
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• 제25권3호
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• pp.131-137
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• 2002

본 연구는 1999년 8월부터 2000년 6월까지 총 4회에 걸쳐 만경강의 조류군집 특성과 관리 방안을 파악하고자 조류군집과 서식환경을 조사하였다. 만경강에서 조류의 서식환경으로 논이 차지하는 비율이 가장 높았으며, 수역, 갯벌, 관목지대, 주거지, 비닐하우스의 순으로 나타났다. 총 88종의 조류가 관찰되었고, 종수는 10월에 58종으로 가장 많았으며, 개체수는 1월에 7,084개체로 가장 많았다. 만경강지역 조류군집의 특성은 잠수성 오리류의 종수가 적고, 상류와 하류의 지역별 서식환경의 차이에 따라 물새의 분포양상이 다르게 나타났다. 수면성 오리류는 삼례대교 상류지역에 주로 분포하였으며, 도요 물떼새류는 하류지역의 갯벌을 주로 이용하였다. 따라서 만경강에 다양한 조류를 서식하게 하기 위해서는 일부 지역에 수심이 1m 이상 되는 지역을 인공적으로 조성하여 잠수성 오리류의 서식을 유도하고, 농경지로 이용되고 있는 하변지역을 관목식생지로 복원할 것을 제안한다.

• The Korean Journal of Ecology
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• 제25권2호
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• pp.61-67
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• 2002

본 연구는 1999년 8월부터 2000년 6월까지 총 4회에 걸쳐 만경강의 조류군집 특성과 관리방안을 파악하고자 조류군집과 서식환경을 조사하였다. 만경강에서는 조류의 서식환경으로 논이 차지하는 비율이 가장 높았으며, 수역, 갯벌, 관목지대, 주거지, 비닐하우스의 순으로 나타났다. 총 88종의 조류가 관찰되었고, 종수는 10월 58종으로 가장 많았으며, 개체수는 1월에 7.084개체로 가장 많았다. 만경강지역 조류군집의 특성은 잠수성 오리류의 종수가 적고, 상류와 하류의 지역별 서식환경의 차이에 따라 물새의 분포양상이 다르게 나타났다. 수면성 오리류는 삼례대교 상류지역에 주로 분포하였으며, 도요?물떼새류는 하류지역의 갯벌을 주로 이용하였다. 따라서 만경강에 다양한 조류를 서식하게 하기 위해서는 일부 지역에 수심이 1m이상 되는 지역을 인공적으로 조성하여 잠수성 오리류의 서식을 유도하고, 농경지로 이용되고 있는 하변지역을 관목식생지로 복원할 것을 제안한다.

• Journal of Forest and Environmental Science
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• 제33권3호
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• pp.239-242
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• 2017

Although camera traps have been widely used to understand the abundance of wildlife in recent decades, the effort has been restricted to small sub-set of wildlife which can mark-and-recapture. The Random Encounter Model shows an alternative approach to estimate the absolute abundance from camera trap detection rate for any animals without the need for individual recognition. Our study aims to examine the feasibility and validity of the Random Encounter Model for the density estimation of endangered leopard cats (Prionailurus bengalensis) in Maekdo riparian park, Busan, South Korea. According to the model, the estimated leopard cat density was $1.76km^{-2}$ (CI 95%, 0.74-3.49), which indicated 2.46 leopard cats in $1.4km^2$ of our study area. This estimate was not statistically different from the previous leopard cat population count ($2.33{\pm}0.58$) in the same area. As follows, our research demonstrated the application and usefulness of the Random Encounter Model in density estimation of unmarked wildlife which helps to manage and protect the target species with a better understanding of their status.