대구광역시 앞산공원 산림식생의 조성 및 구조 변화

오정학,김준수,김학윤,조현제,Oh, Jeong Hak,Kim, Jun-Soo,Kim, Hak Yun,Cho, Hyun Je 한국산림과학회 2019 한국산림과학회지 Vol.108 No.2

대구광역시의 대표적 도시숲인 앞산공원을 대상으로 1997년과 2016년에 식물사회학적 방법으로 식생조사를 실시하고 상관 우점종에 의한 정밀식생도를 작성하여 산림식생의 조성, 구조 및 공간적 분포 변화 경향을 분석하였다. 분석결과, 식생유형의 개수는 1997년과 2016년 모두 22개로 동일하였으나 그 구성 종류에 있어서는 2개 유형이 증가하고 2개 유형은 감소하였다. 산림식생 구성종의 단위면적당($/100m^2$) 총피도는 1997년 약 163%에서 2016년 약 182%로 약 11%가 증가하였으며, 자연식생이 인공식생에 비하여 두 배 이상 높은 경향이었다. 평균 출현종수는 1997년 약 25종에서 2016년 약 18종으로 7종이 감소하였다. 종다양도(H')는 1997년 1.654에서 2016년 1.680으로 미미하게 증가하였으나, 종우점도(D)는 1997년 0.304에서 2016년 0.276으로 약 9%가 감소하였다. 전체 산림식생의 구성적 유사도는 약 78%로 종구성적 특성이 거의 동일한 것으로 나타났으며, 생활형 조성은 1997년 '$G-R_5-D_4-e$'에서 2016년 '$MM-R_5-D_4-e$'로 휴면형의 중심형이 과거 지중식물(G)에서 대형지상식물(MM)로 변화된 경향이었다. 산림식생의 공간 분포 면적은 인공식생이 자연식생에 비해 약 4배 이상 높은 감소율을 보였다. 산림경관 요소(패치)의 개수는 1997년 269개에서 2016년 294개로 약 9%가 증가한 반면, 그 평균 크기는 1997년 5.8 ha에서 2016년 5.1 ha로 약 12%가 감소된 경향이었다. The aim of our study was to identify the changing trends in the composition, structure, and spatial distribution of forest vegetation in Apsan Park, a representative urban forest in Daegu, South Korea. A vegetation survey was conducted in 1997 and 2016 using phytosociological methods, and a detailed vegetation map was created using the physiognomic dominant species. There were 22 vegetation types in both 1997 and 2016, but two of those types increased and two decreased. The total coverage per unit area ($100m^2$) of the component vegetation species increased from 163% in 1997 to 182% in 2016, and natural vegetation tended to be more than twice that of artificial vegetation. The average number of species decreased by seven from 25 in 1997 to 18 in 2016. Species diversity (H') increased only slightly from 1,654 in 1997 to 1,680 in 2016, while species dominance (D) decreased by 9% from 0.304 in 1997 to 0.276 in 2016. The similarity in the composition of the forest vegetation was about 78%, which was nearly the same. The life form spectrums of vascular plants changed from '$G-R_5-D_4-e$' in 1997 to '$MM-R_5-D_4-e$' in 2016 and the central dormancy type changed from geophytes (G) to megaphanerophytes (MM). The spatial distribution of the forest vegetation was reduced by approximately four times that of artificial vegetation. The number of forest landscape elements (patches) increased from 269 in 1997 to 294 in 2016, while the average area decreased by 12% from 5.8 ha in 1997 to 5.1 ha in 2016.

택지개발지구 조경공사의 주민관여 분석 - 경기도 광교지구를 중심으로 -

오정학,Oh, Jeong-Hak 한국조경학회 2016 韓國造景學會誌 Vol.44 No.6

본 연구는 조경공사의 주민관여방식과 내용을 분석하여 공사 주체와의 상호작용 향상을 목적으로 하였다. 이를 위해 경기도 수원의 광교택지개발지구 공공조경공사를 연구대상으로 삼았다. 준공 전후 약 4년간 입주자들의 조경 관련 의견이 연구자료로 활용되었다. 사업시행처와 지자체로 접수된 412건의 민원에 대한 질적분석과 양적분석을 하였다. 그 결과, 첫째, 의견제기의 주목적은 '불만표출 및 개선요구'에 있었고, 그 대상은 '공원'과 '하천'이 많았다. 내용적으로는 '품질'을 가장 많이 지적하였는데, 공종별로는 수목식재공사, 생태하천공사, 포장공사가 많이 언급되었다. 둘째, 내용분석으로 핵심어를 추출한 결과, '고사목 처리'가 가장 많았다. 그 다음은 '추가 식재', '화장실 관리동 이전'의 순이었다. 고사목에 대한 많은 지적은 이식가능시기에 한꺼번에 처리하기 위해 기다리는 과정에서 계속 눈에 띈 탓이 컸다. 셋째, 민원내용의 타당성을 5점 척도로 평가한 결과, 중간값 이상으로 나타났다. 따라서 제기된 의견들은 무리한 요구도 있었지만, 전체적으로는 일정한 객관성을 가진 민원이 더 많은 것으로 분석되었다. The purpose of this study is to improve interaction with the construction subject by analyzing the contents and contents of users' involvement in landscaping works. For this purpose, this study selected the Gwanggyo Residential Land Development District Public Landscape Project in Suwon, Gyeonggi Province. For four years before and after the completion, the opinions of tenants were used as research data. Both qualitative and quantitative analyses of 412 complaints received by the project implementation office and local government were conducted. As a result, first, the main purpose of suggesting opinions was 'demanding and expressing complaints', and there were many 'parks' and 'rivers'. In terms of content, "quality" was the most pointed out, but many kinds of trees, such as tree planting, ecological river construction, and pavement construction were also mentioned. Second, the extraction of key words from content analysis was the most common method. Followed by 'additional foodstuff' and 'moving to the toilet and management building'. Much of the point of view about dead wood has continued to be conspicuous in the process of waiting to be dealt with at the time of transplanting. Third, the validity of the contents of the complaints was evaluated as a five - point scale. Therefore, the opinions raised were unreasonable, but overall, there were more complaints with certain objectivity.

경관생태학적 도시숲 관리를 위한 비오톱 평가지표 및 유형 분류에 관한 연구

오정학 ( Jeong Hak Oh ),조재형 ( Jae Hyung Cho ),조현제 ( Hyun Je Cho ),최명섭 ( Myoung Sub Choi ),권진오 ( Jin O Kwon ) 한국지리정보학회 2008 한국지리정보학회지 Vol.11 No.4

To provide more natural elements in the harsh urban environment, `planting trees as urban forests` has been emphasized as having an important role, and trees are expected to be as functional as the trees under more natural conditions in rural areas, and provide people with benefits. To do this, urban forest policies needed a better idea of planting methods and management of trees through the theory of landscape ecology, and also the feedback system according to the evaluation and assessment of urban forests. In this case study, a new principle and assessment indices for the evaluation are applied for the 4 urban forests in two Korean metropolitan cities, Daejeon and Ulsan. The evaluation of Korean urban forest-function as biotope and the assessment for the classification of biotope diversity types are carried out. The AUEM(Adding Up Estimation Matrix) is applied for the analysis of urban forests. Unlikely previous researches on the other Korean metropolitan cities, the size of urban forest has less influence on the vegetation diversity. The most frequent biotope grade is the 3rd grade at Namseon park and Mt. Hamwol, while Mt. Bomun and Mt. Yeompo show the 4th grade. The grades of forest-function as biotope are from 3rd to 5th in which lower than average in forest-function grades. This means that the 4 sites are still not-matured forests and less-functional forests as the urban biotope.

항공사 서비스품질과 고객충성도의 관계에서 기업이미지와 고객

오정학(Jeong Hak Oh),김철원(Chul Won Kim),민경익(Kyung Ik Min) 한국호텔외식관광경영학회 2010 호텔경영학연구 Vol.19 No.6

This study was to explore a new strategical paradigm in CRM in airline industry. Based on empirical research design, on-site survey was performed from frequent flyers from 7 to 10 April in 2009 with convenience random sampling. More specifically, this study tried to verify causal effect of SERVQUAL dimensions on corporation image and mediating role of corporation image and customer-corporation identification in relationship between SERVQUAL and attitudinal loyalty by approving three hypotheses. Results revealed that 3 factors of 4 SERVQUAL dimensions have a significant effect on corporation image, and corporation image and customer-corporation identification have a role as pure mediating variables in relationship between SERVQUAL and attitudinal loyalty. Moreover, mediating by corporation image and customer-corporation identification accountability(R2) of attitudinal loyalty by service quality has showed 19.7% increase compared with a model without mediating variables. The results suggest that corporation image and customer-corporation identification can be useful CRM concept in airline business.

제주지역 외국인 국제회의 참가자 수요예측에 따른 음식업의 경제적 파급효과 분석

오정학 ( Jeong Hak Oh ),민경익 ( Kyoung Ik Min ) (사)한국마이스관광학회(구 한국컨벤션학회) 2010 MICE관광연구 Vol.10 No.2

The number of international conference holding in Korea is rapidly increased. From 2000 to 2008, the number of holding international meeting is increased 292 to 634, 217%, also foreign participants are increased. As a result, Government and local governments are giving their best efforts to encourage it. For this reason, the effects to local economy by holding international meeting and participants demanding forecast are essentially needed for efficiency of building infrastructures and preparing holding international visitors. This point of view, this study aim to predict expenditure of participants and find out effects towards food service industry based on 2011 international visitors in Jeju. For demanding forecast, KTO annual report of 2000 to 2008 Jeju area the number of international meeting foreign participants is used. Using this data, this study analyzed through the second regression model. Also it analyzed Production, Income, Employment, Added value, Multiplier effects of indirect tax based on 2007 Bank of Korea regional input-output table. The result of demanding forecast shows that 2011 Jeju area will have 29,000 international comers for participating international meetings and through this, This study predict food service industry would gain 8,459 millions sales profit. The result of the regional I-O model indicate that food service industry would generate 10,968 million Won of output impact, 2,036 million Won of income impact, 5,599 million Won of value-added impact, 1,138 million Won of tax, and 287 full-time jobs throughout direct and in direct effects.

백두대간 마루금 지역의 시계열적 토지피복 변화 및 경관구조 분석

오정학 ( Jeong Hak Oh ),김영걸 ( Young Kul Kim ),권진오 ( Jin O Kwon ) 한국지리정보학회 2007 한국지리정보학회지 Vol.10 No.3

The purpose of this study is to analyze contemporary changes of landcover patterns and landscape structure in order to provide basic data and methods for sustainable management and conservation in Baekdu Daegan region using GIS and landscape indices. According to the results based on the pattern analysis of landcover changes using the change detection matrix between 1975 and 2000, addition on 3.6㎢ became urbanized areas. Otherwise, 85.7㎢ of forest area shift into agriculture(72.2㎢) and grass area(10.1㎢) for the vegetables in highland condition and stock farm. According to the landscape structure analysis using landscape indices, forest areas were unstable forest structures because of fragmentation. Thus, to improve forest ecosystem, significant amount of forest through a new forest management policy considering local environmental conditions are needed. And, the connectivity of forests in local regions should be considered as well.

경주 양동마을의 세계문화유산 등재가 지역주민의 삶의 질에 미치는 영향과 지속가능한 발전 방안 연구 -QOL/TQOL index를 이용하여-

오정학 ( Jeong Hak Oh ) 한국농촌지도학회 2011 농촌지도와 개발 Vol.18 No.4

This study is to explore implications for sustainable development of Yangdong Village in Gyeongju through identifying effect of its designation as a World Cultural Heritage on residents` quality of life. The following are the findings achieved by empirical analysis. First, eight valuable factors of placeness were identified through factor analysis, about which residents were especially conscious in terms of living condition, cultural environment, economic QOL, natural environment conservation, sense of community, cooperative facilities, control over increasing population, transport environment. Second, the importance -satisfaction scores of identified 8 factors were found very high in importance showing relatively low level of low level of satisfaction. Especially, what caused residents`s low QOL was economic status-concerned factor showing the lowest QOL index, and other factors such as cooperative facilities and transport environment negatively impacted on resident`s QOL as well. Also, it was revealed that residents had a positive attitude toward entering of their village into UNESCO world heritage sites with hope that it would improve their economic QOL. Based on these results, implications for sustainability of Yangdong Village and research limitations were discussed, and further research direction was supposed.

도시숲 평가를 위한 경관생태학적 모형 개발

오정학 ( Jeong Hak Oh ),권진오 ( Jin O Kwon ),유주한 ( Ju Han You ),김경태 ( Kyaung Tae Kim ) 한국환경생태학회 2010 한국환경생태학회지 Vol.24 No.2

본 연구는 도시숲을 경관생태학적으로 해석하고 평가하기 위한 모형 개발과 적용을 통해 평가의 실효성을 검증하는 것을 목적으로 한다. 연구결과를 요약하면 다음과 같다. 평가지표는 층위구조, 입지상태, 활엽수구성비율, 식생구성종수 등 17개이다. 평가지표 간 상관관계분석 결과, 높은 관계성을 가진 것은 임령(X8)과 공간형성기간(X10)으로 상관계수가 0.684로 나타났으며, 부(-)의 상관성을 가진 지표들은 층위구조(X1)와 위험성(X13)으로 상관계수가 -0.412로 분석되었다. 평가모형구축을 위한 다중회귀분석 결과, 10개의 모형이 도출되었으며, 총 17개 변수 중 층위구조(X1), 식생구성종수(X4) 등을 제외한 입지상태(X2), 활엽수구성비율(X3) 등 10개의 변수만이 유의확률 95%에서 통계적으로 유의하였다. 모형의 회귀식과 합산평가 매트릭스법과 비교분석 결과, 모형 3의 회귀식이 정확도 91.7%로써 전체 10개 모형 중 가장 정확한 결과를 나타내는 것으로 분석되었다. 향후 지속적인 모니터링을 통해 평가모형에 대한 정확도 증진기법에 대한 연구도 함께 수행되어야 할 것이다. The purpose of this study is to verify the effectiveness of the biotope model in applying and developing Korean urban forests. We found that there are 17 biotope assessment indicators, including forest layer structure, site conditions, ratio of broad-leaved trees, species richness, etc. In terms of correlation analysis between indicators, the stand ages and the period of space formation have the highest relativity(coefficient 0.684). On the other hand, indicators that have negative relativity are layer structure and risk, with a coefficient of -0.412. Ten models were developed for the multiple regression analysis. 10 variables(site conditions(X2), ratio of broad-leaved trees(X3) and so forth except layer structure(X1), species richness(X4)) were found to have a 95% significance level The results from comparing the regression model and adding-up estimation matrix, the most accurate one was Model 3, which has a 91.7% out of the 10 models. However more monitoring will be needed to improve the accuracy of models for the Korean urban forests in future.

카지노종사원의 셀프리더십과 조직유효성의 관계

오정학(Jeong Hak Oh),육풍림(Poong Rim Yook) 한국호텔외식관광경영학회 2010 호텔경영학연구 Vol.19 No.3

This study was to identify a structural relationship between casino employees` self-leadership and organizational efficiency taking account into mediating variables such as commitment and customer orientation. Based on literature review a baseline model was suggested. Data for empirical research were collected from casino employees from 12 October to 23 November in 2009 with probability sampling. The study was analysed by exploratory factor analysis, first and second-order factor analysis, structural equation modeling, model comparison and invariance test. The results revealed a significant support for a proposed baseline model, verifying its reliability and validity by CFA, SEM, model comparison and invariance test applied by multi-sample SEM. The results provide casino managers with a managerial implication by verifying that a self-leadership has a significant effect on organizational efficiency. Moreover commitment and customer orientation, mediating between self-leadership and organizational efficiency have a role as facilitators to a organizational efficiency.

경관생태학적 유역관리를 위한 토지이용 유형 분류

오정학 ( Jeong Hak Oh ),정성관 ( Sung Gwan Jung ),권진오 ( Jin O Kwon ),박경훈 ( Kyung Hun Park ) 한국지리정보학회 2007 한국지리정보학회지 Vol.10 No.4

The purpose of this study is to evaluate landscape characteristics of watersheds in the Nakdong River Basin for identifying the groups of watershed with similar landcover patterns by using Geographic Information System and statistical technique. According to the results based on the cluster analysis using cluster analysis tool in the ArcGIS 8.3 program, 22 sub-watersheds were classified into three types; Forest watershed, Agriculture watershed, and Urban watershed. In the forest watershed that has the least potential of ecological disturbances by human, a forest management approach based on geographic conditions and coverage types, etc., should be developed to sustain the ecological and environmental functions of forest. For the agriculture watershed, environmental-friendly agricultural techniques should be performed in the particular enhancement of riparian buffer zone to the prevent direct inflow of soils, fertilizers, and other chemicals into the stream network. Finally, in the urban watershed, an environmental-friendly plan that may increase the ratio of pervious surface and amount of green-space to should be reserved.