난대성 주요 3개 수종에 대한 지위지수 추정 및 적지판정 -제주특별자치도와 남부지역을 중심으로-

강성표 ( Sung Pyo Kang ),김종영 ( Jong Young Kim ),유병오 ( Byung Oh Yoo ),안기완 ( Ki Wan An ) 한국도서(섬)학회 2016 韓國島嶼硏究 Vol.28 No.1

The purpose of this study is to develop a forest resource model and prepare for the new afforested land and climate change through estimating the site index(among several methods, the site index is a typical way to digitize the quality of locality). It also aims to evaluate a suitable site with the warm temperate zone’s three major species(Quercus acuta, Castamopsis sieboldii, Machilus thunbergii) that grow in the southern region including the Jeju special self- governing province and island region. Each specie used 32 site environmental factors and the average height of 5 dominant trees`` for the growth model. The partial correlation analysis using the sample tree collected for evaluation was also conducted . In addition to the partial correlation analysis, the study used the on site stem analysis data and made the final site index functional formula by analyzing the site condition which affects the site index table and curve. Also, this study calculated the suitable site space and tabulated the suitable tree figure on site by using the site index functional formula. As a result, the suitable site of Quercus acuta turned out to be over 10 site index 82,522ha, the Castanopsis sieboldii over 12 site index 60,801ha and the Machilus thunbergii over 12 site index 219,442ha. Quercus acuta was evenly spreaded along the coast and island region that had a high annual average minimum temperature, and was located within 20km from the coastline under 400m elevation. The Castanopsis sieboldii’s suitable-site was mainly spreaded out in the island and coastal region, but it also grew up into the inland and its suitable-site showed a large gap between the annual maximum and minimum temperature. The analysis showed that the growth suitable-site of the Machilus thunbergii turned out to be a place abundant with rainfall in the early spring season, and less than 200m elevation along the coastline and island regions. The coefficient of determination was 0.306, 0.271, and 0.259. The result of this study can be used to decide the forest resource composition and establish management plans through estimating the site index of the warm temperature zone’s three major trees and thus help select a suitable tree on a site through evaluation.

성과지표적합성이 경영혁신과 경영성과의 관계에 미치는 영향

오계영,박종태,이충섭 경남대학교 산업경영연구소 2014 지역산업연구 Vol.37 No.2

This study analyzes empirically the effect of performance index suitability on the relationship between business innovation and performance. According to study results, performance index suitability shows moderating and mediating effects on the relationship of business innovation and performance. The moderating effect of performance index suitability reveals that firms can increase business performance more by strategic usage of performance index even with the same level of business innovation. On the other hand, the mediating effect of performance index suitability means that firms can increase business performance additionally through strategic usage of performance index. Therefore, in order to increase business performance firms using management innovation techniques need to emphasize and strategically control critical attributes of strategy connection, communication promotion and compensation connection in operation of performance control system. 본 연구는 성과지표적합성이 경영혁신과 경영성과의 관계에 미치는 영향을 실증적으로 분석하였다. 연구결과에 따르면 성과지표적합성은 경영혁신과 경영성과의 관계에 대하여 조절효과와 매개효과를 나타내는 것으로 분석되었다. 성과지표적합성의 조절효과는 동일한 경영혁신기법을 사용하는 경우에도 성과관리시스템을 전략적인 목적으로 더 많이 이용하는 기업의 경영성과는 상대적으로 더 높아진다는 것을 의미한다. 성과지표적합성의 매개효과는 경영혁신기법을 도입한 기업이 성과지표적합성을 통하여 추가적으로 경영성과를 향상시킬 수 있다는 것을 나타낸다. 이에 따라 경영혁신기법을 도입한 기업은 경영성과의 향상을 위하여 성과지표적합성의 핵심적인 속성인전략연계성과 커뮤니케이션 촉진도 및 보상연계성을 강화시키고 전략적으로 관리할 필요가 있다.

꿀샘식물 아까시나무의 지위지수 도출 및 직경분포 변화

김소라,송정은,박천희,민수희,홍성희,윤준혁,손영모 한국산림과학회 2022 한국산림과학회지 Vol.111 No.2

We conducted this study to derive the site index, which is a criterion for the planting of Robinia pseudoacacia, a honey plant, and to investigate the diameter distribution change by derived site index. We applied the Chapman-Richards equation model to estimate the site index of the Robinia pseudoacacia stand. The site index was distributed within the range of 16-22 when the base age was 30 years. The fitness index of the site index estimation model was low, but we judged that there was no problem in the application because the residual distribution of the equation had not shifted to one side. We used the Weibull diameter distribution function to determine the diameter distribution of the Robinia pseudoacacia stand by site index. We used the mean diameter and the dominant tree height as independent variables to present the diameter distribution, and our analysis procedure was to estimate and recover the parameters of the Weibull diameter distribution function. We used the mean diameter and the dominant tree height of the Robinia pseudoacacia stand to show distribution by diameter class, and the fitness index for dbh distribution estimation was about 80.5%. As a result of schematizing the diameter distribution by site indices as a 30-year-old, we found that the higher the site index, the more the curve of the diameter distribution moved to the right. This suggests that if the plantation were to be established in a high site index stand, considering the suitable trees on the site, the growth of Robinia pseudoacacia would become active, and not only the production of wood but also the production of honey would increase. We therefore anticipate that the site index classification table and curve of this Robinia pseudoacacia stand will become the standard for decision making in the plantation and management of this tree. 본 연구는 꿀샘식물인 아까시나무의 적지적수 조림을 위해 판정기준인 지위지수를 도출하고, 도출된 지위지수별 경급별 분포 변화를 알아보기 위하여 수행되었다. 아까시나무 임분의 지위지수를 추정하기 위하여 적용한 모델은 Chapman-Richards식이었다. 도출된 식에 따르면, 우리나라 아까시나무의 지위지수는 기준임령이 30년 일 때 16~22 범위 내에 분포하는 것으로 나타났다. 그리고 지위지수 추정 모델의 적합성은 약 37%정도로 낮았으나, 식의 잔차분포가 한쪽으 로 치우지지 않아(bias -0.0030) 활용에는 문제가 없는 것으로 판단된다. 아까시나무 생장에 따른 지위별 직경분포를 구명 하기 위해서는 Weibull 직경분포함수를 이용하였다. 직경의 분포를 나타내는 인자로 평균직경과 우세목 수고를 설명변수 로 하였으며, 이들은 Weibull 직경분포함수의 모수를 추정하고 복구하는 단계를 거쳤다. 최종적으로는 아까시나무 임분의 평균직경과 우세목 수고로서 직경급별 분포를 나타낼 수 있었으며, 분포 추정에 대한 설명력은 약 80.5%인 것으로 나타났 다. 지위지수별 직경분포를 30년생 기준으로 도식화한 결과, 지위지수가 높을수록 직경분포 곡선이 오른쪽으로 이동함을 알 수 있었다. 즉 적지적수를 고려하여 지위지수가 높은 곳에 조림한다면 아까시나무의 생장이 왕성해져 용재생산 뿐만아 니라 꿀 생산도 많아질 것임을 유추할 수 있었다. 따라서 본 아까시나무 지위지수분류표와 곡선이 꿀샘식물인 아까시나무 를 조성 및 관리함에 있어 의사결정의 기준이 되기를 기대한다.

유량증분방법론에 의한 생태유량 산정 모형의 비교연구

장경호,박영기,김경오,정만 한국환경기술학회 2017 한국환경기술학회지 Vol.18 No.6

This study was analyzed the ecological flow rate based on physical characteristics of fish habitat. Habitat model is composed of Habitat Suitabilitye Index(HSI) and model of hydraulics. In this process, the CASiMiR model used for computing the habitat suitability Index under Fuzzy-techniques, and PHABSIM and River2D model is simulated for ecological flow rate which used the habitat suitability curve. By using these three models, the ecological flow rate and weighted usable area are computed. There is no fishes monitoring data for long period, It was introduced that Ganghyeonsik HSI was substituted for habitat suitability index. The ecological flow rate that reflects the characteristics of HSI, which was evaluated by models and reach of stream. It was desireable method that Determination for the reasonable ecological flow rate estimated through the comparative analysis. 본 연구는 어종 서식처의 물리학 특성을 토대로 생태유량을 분석했다. 서식처 모형은 서식처적합도지수와 수리모형으로 구성된다. 이 과정에서, CASiMiR 모형은 Fuzzy-techniques의 서식처적합도지수로 모의를 수행하였고 PHABSIM과 River2D 모형은 서식처적합도지수를 사용하여 생태유량을 계산하였다. 이들 3개 모형을 사용하여, 생태유량과 가중가용면적을 산정하였다. 대상하천의 어류 모니터링 자료가 부재하여 강형식의 서식처적합도지수를 사용하여 HSI의 특성을 반영한 생태유량을 모형별, 하천구간별로 평가했다. 모형별, 구간별로 합리성 있는 하천의 생태유량을 비교, 해석함으로써 그 유량의 적정한 모의 방법을 제안하였다.

삼나무와 편백의 지위지수 추정 및 적지판정 -제주특별자치도와 남부지역을 중심으로-

강성표 ( Sung Pyo Kang ),김종영 ( Jong Young Kim ),안기완 ( Ki Wan An ) 한국도서(섬)학회 2015 韓國島嶼硏究 Vol.27 No.3

Quality of locality means the potential productivity of forest land, which depends on the level of quality of locality. Among several methods, the site index is a typical way to digitize the quality of locality. This study estimated the average height growth model by using 32 site environmental factors such as topography, gradient, effective soil depth and the average height of 5 dominant trees (selected among the Cryptomeria japonica and Chamaecyparis obtusa) in Jeju special self-governing province and southern area. The study used the on site stem analysis data and made the final site index functional formula by analyzing the site condition which affects the site index table and curve. It also conducted the partial correlation analysis. In addition this study calculated the suitable land space and tabulated the suitable tree figure on a site by using the site index functional formula. As a result, more than 16 Cryptomeria japonica areas showed 225,263.8ha while the Chamaecyparis obtusa areas were 113,701.2ha. The coefficient of determination was 0.466, 0.496. The results of this study can be utilized as the decision supporting material for site assessment and suitable-land evaluation on the Cryptomeria japonica and Chamaecyparis obtusa of Jeju special self-governing province and the islands of southern area. This study is also applicable in establishment of future forest management plan.

수량화이론 I방법에 의한 아까시나무 임분의 적지 환경인자 도출

김소라,송정은,박천희,민수희,홍성희,임종수,손영모,Kim, Sora,Song, Jungeun,Park, Chunhee,Min, Suhui,Hong, Sunghee,Lim, Jongsoo,Son, Yeongmo 한국산림과학회 2022 한국산림과학회지 Vol.111 No.3

This study was conducted to derive the site index of forest productivity of Robinia pseudoacacia (honey plant) to characterize suitable planting sites and to investigate the effect of the site environmental factors on the site index using the quantification theory I method. The data used in the analysis were growth factors (stand age, dominant height, etc.) of the 6th national forest resources survey and various site environmental factors of a forest soil map (1:5,000). The average site index value of the R. pseudoacacia stand in Korea was 14 (range, 8 to 18). The environmental factors affecting the site index were parent rock, climatic zone, soil texture, local topography, and altitude. The accuracy of the estimation model using quantification theory I was only 33%. However, the correlation between the site index and the site environmental factors was statistically significant at the 1% level. Results of quantification analysis between site index and site environmental factors revealed that metamorphic and igneous rocks received high grades as parent rocks, climate zones received higher grades than central temperate zone, clay loam and silt loam received high grades in soil texture, and hillside received a high grade in local topography. Analysis of the partial correlation between site topographical factors and forest productivity (site index) found that soil class and altitude were partially correlated to x by 0.4129 and 0.4023, respectively, indicating that these factors are the most influential variables. 본 연구는 밀원식물인 아까시나무의 적지적수 조림을 위해 임지생산력을 나타내는 지위지수를 도출하고, 지위지수에 어떠한 입지환경인자가 영향을 미치는 지를 수량화이론 I방법으로 구명하고자 수행되었다. 분석에 사용된 자료는 6차 국가산림자원조사와 1/5,000 산림입지토양도 상의 임령, 우세목 수고 및 각종 입지환경인자였다. 6차 국가산림자원조사에 의한 우리나라 아까시나무 임분의 지위지수는 평균 14였으며, 범위는 8에서 18 사이에 있는 것으로 분석되었다. 그리고 지위지수에 영향하는 입지환경인자는 모암, 기후대, 토양성질, 국소지형과 해발고였으며, 수량화이론 I방법을 적용한 추정모델의 적합도는 33%였다. 이 추정모델의 적합도는 낮으나 1% 수준에서 유의성이 인정되어 지위지수와 입지환경인자 간의 상호 연관성을 설명할 수 있었다. 지위지수와 입지환경인자 간의 수량화 분석 결과, 모암은 변성암, 화성암이, 기후대는 온대중부지역 이상에서, 토성은 식양토, 미사질양토가, 국소지형은 산복 지역에서 높은 점수를 갖는 것으로 나타났다. 임지생산력(지위지수)에 영향하는 입지환경인자 각각의 편상관을 분석한 결과, 산림 내 토양의 성질과 해당 입지의 해발고에 대한 편상관계수가 0.4129, 0.4023으로 각각 나타나, 이들이 가장 영향력이 높은 인자임을 알 수 있었다.

퍼지논리를 이용한 달천의 물리서식처 모의

정상화,장지연,최성욱 한국수자원학회 2012 한국수자원학회논문집 Vol.45 No.2

본 연구에서는 괴산댐 하류 달천에서 성어기 피라미에 대한 물리 서식처 모의를 수행하였다. 이를 위하여 퍼지논리에 의한 서식처 적합도 지수를 산정하는 CASiMiR 모형을 이용하였다. 또한 모의결과를 서식처 선호도 곡선을 이용하여 서식처 적합도 지수를 산정할 수 있는 수리모형인 River2D 모형의 결과와 비교, 분석하였다. CASiMiR 모형의 수위 자료는 River2D 모형을 통한 수위계산결과를 활용하였으며 현장측정자료와 비교한 결과 잘 반영하는 것을 확인하였다. 대상구간의 만곡부 상류 직선구간에 있는 여울에서 성어기 피라미의 서식처가 가장 적합한 것으로 나타났다. CASiMiR 모형의 경우 7.23m3/s의 유량조건에서 가중가용면적이 최대값을 보였고, River2D 모형은 9m3/s의 유량에서 최대 가중가용면적을 예측하였다. 또한 갈수량(Q355), 저수량(Q275), 평수량(Q185), 풍수량(Q95) 유량조건에서 CASiMiR 모형은 River2D 모형에 비해 가중가용면적을 0.3~25.3% 정도 과대 추정하는 결과를 보였다. This study presents a physical habitat modeling of adult Zacco platypus in a reach of the Dalcheon Stream located downstream of the Goesaan Dam. CASiMiR model is used to estimate habitat suitability index based on the fuzzy logic. Results are compared with those from River2D model, which uses habitat preference curve for habitat suitability index. Hydraulic data simulated by River2D are used as input data for CASiMiR model after verification against field measurements. The result shows that the habitat suitability of the adult Zacco platypus is maximum around the riffle area located upstream of the bend. CASiMiR and River2D estimate the maximum weighted usable areas at the discharge rates of 7.23 m3/s and 9.0 m3/s, respectively. Overall comparison of the two models employed in this study indicates that CASiMiR model overestimates the weighted usable area by 0.3~25.3% compared with River2D model in condition of drought flow (Q355), low flow (Q275), normal flow (Q185), and average-wet flow (Q95).

AHP를 활용한 생태문화도시 평가지표 개발 연구

최송훈,구본학 한국환경복원기술학회 2017 한국환경복원기술학회지 Vol.20 No.6

This study was conducted to develop detailed evaluation indicator as a way for evaluating sustainable urban ecosystem health focused on ecological urban elements from an eco-cultural point of view after the appearance of Eco-cultural City to meet various needs. And this study was also conducted to search for ways to utilize the detailed evaluation indicator like institutionalization. Eco-cultural City was defined as a city where ecological environment and cultural environment coexist and was aimed to derive applicable planning indicators in Korea. For this, FGI was executed, planning indicators were derived, and suitability was examined. The weights were calculated based on the selected indicators through AHP expert survey. After getting the result of FGI, experts reviewed the adequacy of definition from Eco-cultural City and its necessity, and the applicability of planning indicators was examined with evaluation of suitability. As a result of evaluating suitability, it was judged that 41 indicators based on an overall average of 4 areas were relatively high on suitability and also important among sectors. As for the analysis result, the priority order in multistage classification was as followed : harmony between human and environment(B) 0.349, environmental resources(A) 0.266, city environment and quality of culture(C) 0.208, and role division and citizen participation(D) 0.177. In the second level of relative importance, environment protection and infra in the role and citizen participation section was the highest, 0.449, harmonization policy and system in calculating weights was the highest.

An analysis of transport suitability, modal choice and trip pattern using accessibility and network approach: a study of Jamshedpur city, India

Santanu Dinda,Subrata Ghosh,Nilanjana Das Chatterjee 대한공간정보학회 2019 Spatial Information Research Vol.27 No.2

The transportation system is considered the most important element of urban infrastructure and therefore, contemporary urban research precise more emphasis on the well-managed sustainable transport system. Accessibility and connectivity are two important tools regarding urban mobility, trip generation and modal choice as well as transportation management. The assessment of transport suitability is now the central part of transport management. From these perspectives, this study has been focused on the patterns of urban mobility and modal choice on the basis of transport accessibility and suitability. The Jamshedpur city and five adjoining urban areas are selected for assessment. The GIS-based accessibility modeling and network analysis have been used in this study. Moreover, the empirical field survey has also been made for the assessment of trip generation in selected nodes. Therefore, the analytic hierarchy process (AHP) was applied to assess the nature and patterns of trip occurrences and content validity ratio (CVR) and consistency ratio (CR) were used for validation. Furthermore, transport suitability index (TSI) in the different traffic zones were measured. The result shows that Jamshedpur is the most suitable in existing transportation supply–demand system as well as sustainable transportation management.

Prediction of composite suitability index for physical habitat simulations using the ANFIS method

Jung, S.H.,Choi, S.U. Elsevier Science, B.V 2015 Applied soft computing Vol.34 No.-

A physical habitat simulation is a useful tool for assessing the impact of river development or restoration on river ecosystem. Conventional methods of physical habitat simulation use the habitat suitability index models and their success depends largely on how well the model reflects monitoring data. One of preferred habitat suitability index models is habitat suitability curves, which are normally constructed based on monitoring data. However, these curves can easily be affected by the subjective opinion of the expert. This study introduces the ANFIS method for predicting the composite suitability index for use in physical habitat simulations. The ANFIS method is a hybrid type of artificial intelligence technique that combines the artificial neural network and fuzzy logic. The method is known to be a powerful approach especially for developing nonlinear relationships between input and output datasets. In this study, the ANFIS method was used to predict the composite suitability index for the physical habitat simulation of a 2.5km long reach of the Dal River in Korea. Zacco platypus was chosen as the target fish of the study area. A 2D hydraulic simulation was performed, and the hydraulic model was validated by comparing the measured and predicted water surface elevations. The distribution of the composite suitability index predicted by the ANFIS model was compared with that using the habitat suitability curves. The comparisons reveal that the two distributions are similar for various flows. In addition, the distribution of the composite suitability index of the Dal River is computed by the ANFIS method using monitoring data for the other watersheds, namely the Hongcheon River, the Geum River, and the Chogang Stream. The monitoring data for the Chogang Stream, correlation pattern of which was the most similar to that of the Dal River, yielded the distribution of the composite suitability index, which was very close to that obtained using data for the Dal River. This is also supported by the mean absolute percentage error for the difference in the weighted usable areas.