• Title/Summary/Keyword: Ecotope

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The Analysis of Classification Method and Characteristics of Urban Ecotopes on the Landscape Ecological Aspect - The Case of Metropolitan Daegu - (경관생태적 측면에서의 도시 에코톱의 분류방법 및 특성분석 - 대구광역시를 사례지로 -)

  • 나정화;이정민
    • Journal of Environmental Science International
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    • v.12 no.12
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    • pp.1215-1225
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    • 2003
  • The purpose of this research was to investigate the characteristics of urban ecotopes and to classify ecotopes systematically from them. Total of 15 characteristics for classification of ecotopes were selected, and there were categorized 3 factors, that is abiotic, biotic and anthropological factors. The ecotope types in the study area were classified into 67. The classification of ecotope was made with SPSS for Windows Version 10.0 on the basis of the 15 characteristics. As the results of cluster analysis using the average linkage method between groups, groups of ecotope type were divided into 15 clusters. It was known that there was not a great difference in an affinity as the result of overlapping the maps of ecotope type and land use type. This research suggested characteristics for classification of ecotopes, but there was a limit to Set the objective method for grade classification because of lacking in the basic data, the research of characteristics will be accomplished continuously.

Effects of river space restoration on biodiversity in the Mankyung river (만경강 하천공간 복원이 생물다양성에 미치는 영향)

  • Jeon, Ho-Seong;Kim, Kyuho;Hong, Il;Kim, Ji-Sung
    • Journal of Korea Water Resources Association
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    • v.52 no.spc2
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    • pp.865-873
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    • 2019
  • The purpose of this study is to develop and apply a river space restoration framework considering various functions of river basin system. In particular, we will present sustainable river basin management directions by quantifying the effect of improving the aquatic ecosystem through the restoration of river space. For this purpose, the present problems are derived from functional aspects of the river basin, and the river area restoration framework linked with the individual outcome indicators is constructed to evaluate the restoration effect by each function. The ecological impact of restoration of river area was quantitatively analyzed by introducing ecotope concept. As a result of the comparison of restoration effects by creating three kinds of river area restoration scenarios, the construction of suitable habitat such as backswamp in the expanded area has shown favorable results in expanding biodiversity. The diversity evaluation of ecotope in conjunction with the hydraulic and hydrological characteristics of the year will not only provide the expected effects of restoration of river space but will also serve as a criterion about post-project monitoring for outcome evaluation.

The Directions of Rural Environmental Planning Based on Establishing Environment Contexts. (환경체계설정을 통한 농촌환경계획의 방향정립에 관한 연구)

  • 이경진
    • Journal of Korean Society of Rural Planning
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    • v.2 no.1
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    • pp.91-99
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    • 1996
  • This study was accomplished to present a new paradigm of rural environmental planning for the purpose of changing a rural planner's acknowledgments. This study was composed of a follows, To search the structures and orders in rural environment on the point of four environmental contexts. First, environment contexts with spaces, society, and time. Second, environment contexts with spaces unit in human settlement. Third, environment contexts with correlation of physical environment, institutional environment, and social environment. Fourth, environment contexts with ecotope( physiotope + biotope) and landscape ecology. To analyze and criticize a present political situation of rural planning in Korea. To apply a paradigm of environmental planning for rural planning.

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Evaluation of Eco-Village Planning Characteristics by Introducing Landscape Unit System (경관단위체계를 도입한 생태마을계획의 특성 평가)

  • 황보철;이명우
    • Journal of the Korean Institute of Landscape Architecture
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    • v.32 no.3
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    • pp.60-75
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    • 2004
  • The purpose of this research is to evaluate five types of eco-village planning in order to introduce a landscape unit concept and theory in Korea. Although they had different backgrounds and motives of eco-villages planning, their common goal is to always maintain ecological planning and design in their villages. As concrete methods of ecological planning, we suggest three fundamental planning theories. 1. The boundary of a plan unit should be a watershed. 2. The survey and analysis of village ecotopes should be done in that defined watershed. 3. These results should be applied in the site and lot planning of eco-villages. These 3 steps should be done in a process and relevantly. In the evaluation of the five eco-village planning types, we found three results. 1. On a viewpoint of watershed, most planners recognized a watershed in survey and planning stages unconsciously. But they did not mention watersheds concretely and did not use this concept in the planning stage. 2. They did not define the concept of ecotope, but most planners recognized land-uses and vegetations of villages and vicinities as ecotopes. Also these could be proper ecotopes, but they did not use these compartment of ecotopes in the planning of ecosystem structure in villages. In addition, they did not deeply survey and analyze the ecotopes of villages and its vicinity. 3. On the viewpoint of sites and lots planning, they did not relevantly use the characteristics of watersheds and ecotopes in sites and lots planning. Therefore, they failed to implement the indigenous lots and subdivisions plan. In the size of lots and sites, they did not seriously consider the carrying capacity of ecosystem. We hope that our suggestion about the establishment of eco-villages planning is a fundamental theoretical framework of ecological planning in future eco-village planning.

Hotspot Detection for Land Cover Changes Using Spatial Statistical Methods (공간통계기법을 이용한 토지피복변화의 핫스팟 탐지)

  • Lee, Jeong-Hun;Kim, Sang-Il;Han, Kyung-Soo;Lee, Yang-Won
    • Korean Journal of Remote Sensing
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    • v.27 no.5
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    • pp.601-611
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    • 2011
  • Land cover changes are occurring for a variety of reasons such as urbanization, infrastructure construction, desertification, drought, flood, and so on. Many researchers have studied the cause and effect of land cover changes, and also the methods for change detection. However, most of the detection methods are based on the dichotomy of "change" and "not change" according a threshold value. In this paper, we present a change detection method with the integration of probability, spatial autocorrelation, and hotspot detection. We used the AMOEBA (A Multidirectional Ecotope-Based Algorithm) and developed the AMOEBA-CH (core hotspot) because the original algorithm tends to produce too many clusters. Our method considers the probability of land cover changes and the spatial interactions between each pixel and its neighboring pixels using a local spatial autocorrelation measure. The core hotspots of land cover changes can be delineated by a contiguity-dominance model of our AMOEBA-CH method. We tested our algorithm in a simulation for land cover changes using NDVI (Normalized Difference Vegetation Index) data in South Korea between 2000 and 2008.

A Study on Ecotope Diversity Transition Analysis in the Middle of Mankyung River (만경강 중류 에코톱다양성 추이분석 연구)

  • Kim, Woo Ram;Kim, Ji Sung;Kim, Kyu Ho
    • Proceedings of the Korea Water Resources Association Conference
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    • 2016.05a
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    • pp.480-480
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    • 2016
  • 에코톱은 생태학적 지휘체계(Niche)와 서식처(Habitat)가 결합된 환경을 의미하며 도면에서 최소한의 단위로 일반적인 구성요소의 상태, 잠재자연식생, 잠재생태계 기능으로 균일하게 분류가 가능한 요소로서 천이단계 또는 토지이용이 서로 다른 패치들로 이루진 생태공간을 의미한다. 따라서 에코톱과 비오톱은 식물과 동물의 특정 군집에 요구되는 서식공간의 개념에서는 의미가 같지만 비오톱은 서식공간의 일부분 또는 한 개 이상의 생물이 서식가능한 공간의 개념으로 사용된다. 현재 네덜란드, 스페인을 포함한 유럽국가에서는 에코톱분류를 통한 하천을 관리하는 방안을 제시하고 있으며 이에 대한 많은 연구가 진행되고 있다. 본 연구에서는 만경강 중류 소양천 합류점에서 전주천 합류점까지 약 3.5km 구간의 제외지포함 제내지 1km 폭을 대상으로 1918년 고지도 토지피복을 분류하고, 1948년 해방이전 항공사진, 2003년 2014년 항공사진을 활용한 에코톱을 분류하여 이에 대한 에코톱 다양성지수를 추이분석하여 하천으로부터 떨어진 거리 별 에코톱다양성지수 변화를 분석하였다. 분석결과 과거 제방축조 이전인 1918년 에코톱 다양성 지수는 하천으로부터 멀어질수록 안정적으로 감소하였으나 1948년 이후의 하천은 제내지에서부터 지수값이 급격히 감소한 것을 알 수 있었다. 이는 1948년 이후의 만경강은 과거 1918년 하천에 비해 구하도 공간이 농경지 증가, 보설치 등으로 인한 인위적 교란에 의한 감소로 분석되어지며 에코톱다양성과 밀접한 연관이 있는 생물종다양성 역시 감소하였음을 유추할 수 있다.

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A Study on Ecotope Diversity Improvement effectiveness Analysis in the Middle of Mankyung River Restoration Scenario (만경강 하천공간복원 시나리오의 에코톱 개선효과 분석)

  • Kim, Woo Ram;Jeon, Ho Seong;Kim, Ji Sung;Hong, Il;Kim, Kyu Ho
    • Proceedings of the Korea Water Resources Association Conference
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    • 2018.05a
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    • pp.434-434
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    • 2018
  • 에코톱은 가장 작고 균일하며 도면의 단위로 사용 가능한 토지, 일반적인 구성요소의 상태, 잠재자연식생, 잠재생태계 기능을 최소한의 단위로 균일하게 분류가 가능한 요소로서 천이단계 또는 토지이용이 서로 다른 패치들로 이루어진 무생물과 생물이 결합된 생태공간으로서 일반적으로 세가지 특성을 포함한다. (1) 가장 작은 동질성 가진 지도로 분류 가능한 단위, (2) 일반적인 기질조건, 잠재적 자연식생 및 잠재적 생태계 기능에 대한 동질성, 그리고 (3) 서로 다른 연속적인 토지 이용 단계에서의 패치로 구성 된다. 현재 네덜란드, 스페인을 포함한 유럽국가에서는 에코톱분류를 통한 하천을 관리하는 방안을 제시하고 있으며 이에 대한 많은 연구가 진행되고 있다. 본 연구에서는 만경강 중류 소양천 합류점의 터지네 구간을 대상으로 하천공간의 복원 이후 연중유황에 따른 에코톱의 변화를 예측하고 이에 따른 개선효과를 정량적으로 분석하는 것이 목적이다. 제방 후퇴, 제방후퇴/구하도 복원, 제방 후퇴/습지 조성 세가지 복원 시나리오를 현재지형과 비교하여 연중 유황별 흐름조건에 따라 에코톱을 도식화 하였으며, 이에 따른 에코톱 다양성 지수를 도출하여 비교분석하였다. 복원 대상지의 복원 시나리오 및 흐름조건에 따른 에코톱의 변화를 분석한 결과 '제방 후퇴/구하도 복원' 일 때 자연요소가 현재지형보다 가장 크게 증가되었으며 3가지 복원 유형 간 자연요소를 비교한 결과 '제방 후퇴/구하도 복원' 일 때 수역과 일년생 초본이 가장 많은 면적을 차지하였으며, '제방 후퇴/습지 조성' 일 때 습지와 다년생 초본이 가장 많은 면적을 차지하였다. 복원 유형 별 연중 유황 조건에 따른 에코톱 다양성 지수분석결과 제방후퇴/습지 조성시 에코톱 다양성 개선효과가 가장 큰 것으로 나타났다.

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Prior Eco-preserve Zoning through Stream Ecosystem Evaluation on Dam Basin -A Case of Yongdam-dam Watershed, Jeollabukdo Province- (댐유역 하천생태계평가를 통한 생태보전우선지역설정 -용담다목적댐 유역을 사례로-)

  • Lim, Hyun-Jeong;Lee, Myung-Woo
    • Journal of the Korean Institute of Landscape Architecture
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    • v.39 no.2
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    • pp.103-112
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    • 2011
  • The purpose of this study is to specify the prior eco-preserve zone by establishing the eco-landscape unit on the stream corridor and evaluating the stream ecosystem in the dam basin. The fundamental ecological data was surveyed and collected through "the ecosystem project on Yongdam multipurpose dam watershed" from 2008 to 2009. The Yongdam Dam Watershed has several streams, Jujacheon, Jeongjacheon and Guryangcheon, of which the area is $930km^2$, stretching to Jinangun, Jangsugun and Mujugun Jellabukdo. In spite of being used for drinking purpose, the dam water quality and ecosystem is threatened by in-watershed pollution produced by development, golf course grounds and sports complex, etc. The landscape unit of stream corridor was zoned across by 250m, 500m, and 750m from the vicinity line of stream, which was decided to the accuracy of mapping and surveying. Types of evaluation are the Stream Corridor Evaluation(SCE) and the Vegetated Area Evaluation(VAE). In the process of SCE, several indices were analysed, fish species diversity, species peculiarity, and stream naturality. Indices for VAE were forest stand map, vegetation protection grade, species diversity and peculiarity for wild bird and mammal life. The importance of the ecological items is categorized into three levels and overlapped for specifying the prior preserve zone. The area at which legally protecting species appeared is categorized as absolute preserve area. This study might be meaningful for proposing the evaluation process of a stream corridor ecosystem, which can synthesize a lot of individual ecological surveys. We hope further research will be actively performed about the ecotope mapping which is based on a individual wildlife territory and habitats and also their relationships.