• 한국환경복원기술학회지
• /
• 제2권2호
• /
• pp.1-8
• /
• 1999

This study is one of the processes to build the artificial wetlands in the urban area. The purpose of this study was to survey biotic or physical environments, and to review modelling techniques to find out the ecological structure and function. Case study site was the Bangdong wetland in the north west side of Taejon metropolitan city. The number of species of insects decreased during monitoring. But the number of individuals of insects decreased abruptly after increasing. And then biodiversity index dropped and dominance index increased. So the structure of biotopes was affected by weather conditions. And in the restricted area such as urban area, the changes of insects were affected sensitively by not physical but environmental changes. As for birds, the number of species was reduced a little, but the number of individuals increased abruptly. And dominance index increased slowly. The changes of water depth and increase of temperature affected the habitat condition of vegetations and birds, so the dominance index of specific species increased. In urban areas it is necessary to continue management for water environmental changes, such as the depth and area of water. The number of species of fishes was reduced a little, but the number of individuals increased abruptly. And dominance index and biodiversity index decreased slowly. But the water environments was so changeable that it is difficult to explain current status as some specific trends. The number of species of reptiles and amphibians changed little, but the number of individuals increased abruptly. And dominance and biodiversity were not changed. The changes of water depth and temperature affected the habitat of every species the environmental changes affected.

• 한국조경학회지
• /
• 제24권3호
• /
• pp.42-56
• /
• 1996

The citizens seek to maximize convenience, pleasantness and safety when they use urban facilities. However, existing practices of urban neighborhood parks have applied not qualitative standards such as adequacy, efficiency, accessibility, equity, or socioeconomic issues but very limited quantitative standards such as area per person. Therefore it is not rare that citizens have lost their accessibility to near-by neighborhood parks. And park regulations based on the distance of lien are supposed to be uniformally accomplished regardless of the consideration about users or geographical special situations. Futhermore, it has been found that some urban neighborhood parks don't reach to the standards given by the regulations. This study tries to accomplished several purposes. The first purpose is to extract the boundary of real user-accessible zones derived from the city survey. Comparing with boundary of real user-accessible zones, the second one is to propose the most efficient measurement indices among many accessibility measurement index. Based upon the above arguments, the last one is to review the propriety of the access distances(e.g., semidiameter) of an urban neighborhood park in a law. The measurement indices of accessibility examined in this study are walking distance, walking time and walking difficulty. The comparison of visual discrimination, the comparison of area and the comparison of differences of maximum distance showed similar results. Each index can also be compared in the size of area and differences of maximum distance. Walking difficulty with the turning showed the best measurement values among the measurement indices. This indicates that walking difficulty with crossing and/or turning may be another important indices in measuring accessibility, while other existing studues have mainly dealt with walking time and distance as accessibility indices. The results of this study also supported that the existing regulations related to park allocation(e.g., access diameter) are close to the findings of this study.

• 한국조경학회지
• /
• 제29권1호
• /
• pp.80-91
• /
• 2001

The purpose of this research is to provide a basic knowledge to open up for undeveloped park in process of the park policy establishment by setting up the priority of park development and valuation factor, valuation index as well as building a basic material to undeveloped neighborhood park in Daegu Metropolitan City. Thirteen urban neighborhood parks(1,841,663$m^2$) in the Daegu Metropolitan City were selected for this study. Analyzing and reviewing the previous research and literature review were conducted, and the evaluation index and analysis criteria were constructed to decide the development priority of parks. The results of this research are as follows; 1) Following to the result of the expert questionnaire test in order to estimate weight of valuation factors. It had a high score in available population, and estimated amount of the gross compensation, unpurchased land rate. On the other hand park rate of autonomous district, altitude, rate of population increase in autonomous district and a low score. 2) Generally, most f the plain type parks had a high score in the Sea level, land using pattern, an estimated amount of the gross compensation, but hill type parks had a high score the rate of green covered, park area for one person of administration building. 3) Daebong, Soosung, Dosan, 2.28 youth, Kyungnam parks were selected high priority. Soochang, Donsibong, Janggi, Dongin parks were selected middle priority. Bokhyun, Galsan, Manchon, Gusoosan parks, which were selected low priority. This research for undeveloped park is a basic research step to open up. Three many difficult things in shortage of the basic material for building valuation factor and measuring of the method measurement. The application of weight which make a decision importance among the valuation factor should have ore reasonable study and more scientific research from now because there still remains a lot of shortage of positive materials in there.

• 한국조경학회지
• /
• 제48권5호
• /
• pp.16-27
• /
• 2020

본 연구는 서울시 도심 하천 중 국가하천인 중랑천을 대상으로 보전지역 설정 프로그램인 Marxan with zones 프로그램을 기반으로 한 하천 내 보전지역 설정 및 생태적 관리방안을 제시하였다. Marxan with zones 프로그램 적용은 유역권(planning unit) 설정, 맵핑지표(mapping index) 적용, 반복적인 분석을 위한 수치보정, 분석을 통한 시나리오 별 최적안 작성, 시나리오 별 민감도 분석, 시나리오 중 최적안 검토 및 선정 단계로 진행하였다. 중랑천 내 보전지역 설정 결과, 기존에 보전지역으로 지정 및 관리하고 있는 중랑천 상류 야생생물보호구역을 포함한 다수의 유역권과 중랑천 하류의 철새보호구역을 포함한 유역권이 핵심보전지역으로 설정되었다. 상류는 중랑천을 중심으로 수락산과 도봉산 등 산림이 인접하여 다수의 야생조류가 관찰되었다. 하류는 한강 합수부, 청계천 합수부 등 하천생태계가 인접하여 하천을 따라 이동하는 철새 도래지이다. 따라서 중랑천 상류와 하류는 유역권 내 도봉산, 수락산, 응봉산 등 산림생태계, 도심 내 녹지, 청계천 합수부, 한강 합수부 등 다양한 생태계와 연결되어 있어 보전지역 설정에 영향을 주었다. 본 연구는 보전지역 검증 시 Marxan with zones 프로그램을 통한 기존 보전지역 설정 및 평가를 검증하였고, 프로그램을 통해 핵심보전지역으로 도출된 유역권을 생태적으로 관리하기 위해 하천 내 관리방안과 유역권 관리방안으로 구분하여 제시하였다.

• 한국환경복원기술학회지
• /
• 제19권1호
• /
• pp.121-133
• /
• 2016

It was required to evaluate ecological restorations in a comprehensive way in order to systematically manage conservation areas such as DMZ and national parks in South Korea. In this research we developed a new approach to evaluating ecological restorations with more various indexes than vegetation covering-related indexes. By analyzing damaged areas in the vicinity of DMZ, major damaged types were identified as six classes: landform modification, surface loss, soil pollution, soil physio-chemical modification, vegetation decline and vegetation damaged. From literature review, 39 indexes were selected and were grouped into four divisions: soil property, vegetation growth & structure, habitat property and landscape structure & functions. By conducting a survey with the selected indexes targeting relevant experts, data on relative importance among the divisions and indexes by damaged type were collected. As a result, it was found that the orders and values of weighted values of the divisions were different by damaged type: for example, soil property (0.402), vegetation growth & structure (0.209), habitat property (0.225), landscape structure & function (0.163) for "landform modification"; but soil property (0.171), vegetation growth & structure (0.401), habitat property (0.270), landscape structure & function (0.158) for "vegetation decline". Similarly, evaluation indexes showed different orders and values of relative importance, easiness in field measurement and representativeness for the division by damaged type, and the values were used for calculating importance factor for each index. In the evaluation table, score1 and score2 were made by the importance factors of indexes multiplied by distribution values which present grades and by the weighted values of divisions. In conclusion, while dealing with the damaged type was considered significant for evaluating and managing restorations, further tests on this table with a range of cases were needed to improve its quality.

• 휴양 및 경관연구
• /
• 제12권4호
• /
• pp.35-44
• /
• 2018

The purpose of this research is to evaluate Seoullo 7017 based on Universal Design (UD) principles and guidelines. To derive UD principles applicable to the site context, we used the 2017 Seoul Universal Design Guideline and assessment index provided by the Universal Design Research Center and established 11 evaluation criteria. With respect to research methods, a literature review and on-site field survey were applied, through which we derived UD principles and evaluation criteria to identify UD problems. The 11 evaluation criteria consist of pedestrian space, facilities, access, main entrance, parking lots, trails, restrooms, convenience facilities, information facilities, rest areas, and playgrounds, and these were associated with UD principles for evaluation. As a result, the main entrance had the highest UD score, while parking lots had the lowest in terms of equity, safety, simplicity, and accessibility. Restrooms received a lower UD score because of poor conditions of security and alert systems. Rest areas were found to be uncomfortable for disabled people. With respect to the internal trails, we found the lack of braille block and irregular placement of planting pots made blind people uncomfortable when walking. In terms of UD principles, flexibility received the highest score, followed by amenity, equity, simplicity, tolerance, accessibility, and safety. Flexibility received the highest score, owing to the provision of proper information about convenience facilities and trails, while safety received the lowest, based on poor access to parking lots, inadequate paving materials and colors, and a lack of 24-hour security systems. We hope this research contributes to improving the universal design, so that people are not discriminated against in the use of the park in terms of age, sex, or physical disability. We expect the study to help facilitate empirical studies to verify UD principles and provide improved quality of UD for Seoullo 7017.

• 한국조경학회지
• /
• 제38권4호
• /
• pp.11-24
• /
• 2010

본 연구는 지구단위 차원에서 자연체험 및 휴양 가치를 평가하기 위해 객관적인 평가지표를 도출하고, 이를 토대로 체계적인 평가모형을 설정하는데 가장 큰 목적을 두었다. 우선 문헌분석 결과, 자연체험 및 휴양가치 평가를 위한 평가지표 들로는 층위구조, 포장율, 헤메로비(hemeroby) 등 총 10개의 항목이 도출되었다. 또한, 전문가 설문분석 결과, 평가지표 항목 모두가 4.4 이상으로 높은 중요도 평균값을 나타내었다. 특히 헤메로비 및 독특한 경관요소 항목은 5.8 이상으로 매우 높게 나타났다. 더불어 평가지표들을 특성별로 유형화하기 위해 요인분석을 수행한 결과, '경관구조 및 자연체험 질', '일반적 이용성', '미 시각 질' 등 총 3개의 요인으로 구분되었다. 이상과 같은 설문분석 결과를 토대로 각 요인별 가중치를 산정한 결과, '미 시각 질' 요인이 3.510으로 가장 높은 값을 보였으며, 이에 반해 '경관구조 및 자연체험 질' 요인은 3.035으로 가장 낮은 값을 나타내었다. 이들 결과를 종합적으로 분석하여 체계적인 가치평가 모형을 설정하였다. 또한, 도출된 평가모형의 타당성을 검증해 보기 위해 실 사례지를 선정하여 적용하였다. 우선 사례지의 비오톱 유형분류 결과, 비오톱 유형군은 유수지 비오톱 등 총 13개로 분류되었으며, 이에 귀속되는 비오톱 유형은 총 61개로 구분되었다. 마지막으로 기 설정된 평가모형을 적용한 비오톱 가치평가 결과, I 등급으로는 식생이 풍부한 자연형 하천, 산림과 접해 있는 소규모 수림 등 총 16개 유형으로 나타났다. 반면 II 등급은 9개 유형, III 등급은 8개 유형, IV 등급은 8개 유형, 가치가 매우 낮은 V 등급은 19개 유형으로 분석되었다.

• 한국조경학회지
• /
• 제51권6호
• /
• pp.46-60
• /
• 2023

본 연구는 접경지역 문화서비스 평가를 통해 지표와 방법론의 적절성을 고찰하고, 국내 핵심 생태자산인 접경지역의 생태계서비스 기반 관리를 위한 기초자료로 활용하고자 한다. 이에 본 연구에서는 선행연구에서 제시한 평가지표와 방법을 바탕으로 7개 시군을 평가 및 비교하였다. 문화서비스 평가 결과, 여가·관광은 파주시, 경관미는 인제군, 교육은 양구군, 유산은 인제군이 우수한 것으로 나타났다. 이에 본 연구를 통해 문화서비스의 종합적인 평가를 위한 향후 과제를 다음과 같이 제안하고자 한다. 첫째, 국가 및 광역 단위의 생태계서비스 평가를 위해서는 문화서비스 평가 및 모니터링을 위한 지표 체계 구축이 필요하다. 둘째, 문화서비스 평가 지표 체계 구축시 평가대상지역 스케일에 따른 지표 간의 상·하위 개념 단위나 일관성에 대한 검토가 선행되어야 한다. 셋째, 생태계 유형에 따라 문화서비스 평가를 위한 구체적인 DB 구축 및 활용 검토가 이루어져야 한다. 마지막으로 국내의 문화서비스 연구가 현저히 부족한 상황에서 비물질적이고 정성적인 인식을 포함한 문화서비스 평가를 위해서는 기초 연구가 지속되어야 한다. 향후 광역단위의 문화서비스 평가를 위해서는 생태계 유형별로 추가적인 기초 연구 결과 축적이 필요하며, 적절한 평가지표와 방법에 대한 새로운 접근 방법의 후속 연구가 필요하다.

• 한국물환경학회지
• /
• 제35권5호
• /
• pp.425-431
• /
• 2019

Recently, people have been attracting attention to the good quality of water resources as well as water welfare. to improve the quality of life. This study is a papers on the prediction of benthic macroinvertebrate index (BMI), which is a aquatic ecological health, using the machine learning based CFS (Correlation-based Feature Selection) method and the random forest model to compare the measured and predicted values of the BMI. The data collected from the Han River's branch for 10 years are extracted and utilized in 1312 data. Through the utilized data, Pearson correlation analysis showed a lack of correlation between single factor and BMI. The CFS method for multiple regression analysis was introduced. This study calculated 10 factors(water temperature, DO, electrical conductivity, turbidity, BOD, $NH_3-N$, T-N, $PO_4-P$, T-P, Average flow rate) that are considered to be related to the BMI. The random forest model was used based on the ten factors. In order to prove the validity of the model, $R^2$, %Difference, NSE (Nash-Sutcliffe Efficiency) and RMSE (Root Mean Square Error) were used. Each factor was 0.9438, -0.997, and 0,992, and accuracy rate was 71.6% level. As a result, These results can suggest the future direction of water resource management and Pre-review function for water ecological prediction.

• 한국환경생태학회지
• /
• 제28권3호
• /
• pp.365-373
• /
• 2014

본 연구는 자전거도로 시스템이 활성화되어 있는 창원시를 대상으로 자전거 도로의 물리적 환경에 대한 공간 데이터를 구축하여 자전거도로 환경을 분석하고자 하였다. 물리적 환경을 평가하기 위한 지표는 문헌분석을 통하여 도출하였으며 각 평가 지표의 중요도 평가 및 가중치 설정을 위하여 전문가조사를 실시하였다. 최종적으로 도출된 8개의 물리적 환경 평가지표를 활용하여 현장 조사를 실시하였으며 수집된 자료는 ArcGIS Program을 이용하여 등급화 하였다. 평가지표별로 높은 점수를 획득한 구간의 면적비율은 녹시율(40%이상, 9.3%), 연결성(1.8이상, 9.8%), 자전거도로 유형(자전거 전용도로, 25.4%), 포장유형(아스팔트, 72.5%), 불법주차(무, 93.9%), 노면표시(유, 46.8%), 제한속도(30km 이하, 48.5%), 교통량(500/hr 이하, 44.3%)으로 나타났다. 8개의 평가지표를 중첩한 결과 1등급의 구간은 31-35점으로 대상지의 전체 도로 면적에서 12.4%로 나타났으며 득점요인은 도로의 유형과 녹시율로 나타났다. 또한 평균 녹시율이 35% 이상으로 나타나 자전거 이용에 있어 안전성과 쾌적성이 높은 것으로 분석되었다. 15점 미만을 획득한 5등급 구간의 경우 전체 도로면적의 24.5%를 차지하며 주요 요인은 불법 주정차, 노면표시 미비, 낮은 녹시율로 나타났다.