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사공정희 ( Sagong Jung-hee ),정옥식 ( Jung Ok-sik ),여형범 ( Yeo Hyoung-beom ) 한국농촌계획학회 2015 농촌계획 Vol.21 No.3
The value of rice-fields is being graded down in Korea because it has been estimated only from the size. The purpose of this study is to suggest a management plan in which the location and the size of valuable rice-fields for conservation are based on the results of appraising the worth of ecosystem services of rice-fields in Chungcheongnam-do region. The study is as follows; ①selecting the indicators for evaluating the ecosystem services of rice-fields considering both general functions and special functions in the regional environment conditions, ②classifying the grades of rice-fields in ecosystem service values, ③suggesting the location and the size of valuable rice-fields for conservation, ④calculating the total economic value of the ecosystem services of rice-fields. The results of this study are that the valuable rice-fields’ locations for conservation are the grade I rice-fields and their total area is 100,000ha. Also, the value of the ecosystem services of rice-fields in Chungcheongnam-do region was equivalent to 32.8 trillion won. This amount is over 18 trillion won more than the amount obtained if the total rice-fields in Chungcheongnam-do region were to be transformed to other land-use types. The value of ecosystem services should be considered in the future when appraising the worth of rice-fields, and methods of estimating the ecosystem services of rice-fields need to be developed with a more objective and suitable index.
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야생동물 출현지점의 토지이용형태를 고려한 "우선보전연결구간" 선정
사공정희,나정화,정옥식,SaGong, Jung-Hee,Ra, Jung-Hwa,Chung, Ok-Sik 한국조경학회 2011 韓國造景學會誌 Vol.39 No.1
생태적 연결성을 확보하고 야생동물의 보전을 위해 생태적 연결통로에 대한 많은 연구가 진행되고 있지만, 현재 야생동물의 서식이 양호한 지점에 대한 보전 대책은 미비한 실정이다. 이번 연구는 생태적 연결성을 확보하는 측면에서 실제 다양한 야생동물이 서식하며 이들의 서식환경이 비교적 잘 보전되어 있는 지역을 선별하는 데 목적이 있으며, 일정 종수 이상의 야생동물이 다양하게 서식하고 서식지 주변의 토지이용특성을 분석하여 공통적 유형을 고르게 갖추고 있는 지점을 '우선보전연결구간'으로 지정하였다. 이를 위해 충청남도 당진군, 서산시, 예산군, 공주시, 부여군 등 5개 시 군을 대상으로 포유류의 다양한 서식이 예상되는 지점 500개를 우선 선정하고, 이 지점에 대해 2계절, 총 2회에 걸쳐 포유류 서식 현황을 조사하였다. 조사결과 492개 지점에서 총 12종의 포유류가 서식하고 있었으며, 각 지역별 평균 종수 이상의 종이 출현한 지점은 총 264개였다. 그리고 평균 종수 이상의 종이 출현한 저점에 대한 토지이용현황 분석을 한 결과, 산림, 논, 밭, 하천, 초지, 농촌형 건축물 등을 포함한 5~7개 유형을 가진 지점에서 높은 종 다양성을 보였다. 이를 토대로 평균 이상의 야생동물이 서식하고 공통적 유형을 지닌 지점을 "우선연결보전구간"으로 정의하였으며, 총 89개 지점을 선정하였다. The purpose of this study was to find ecologically stable areas involving the locations in which wildlife exist, and to earmark those places as "ecologically connected areas requiring preferential preservation," and through that, to reduce the perils that may occur due to urban development or road construction. The processes and the results of this study were as follows: 1. Selecting the spots in which wildlife may exist: The total study areas were analyzed by eight ecological indexes and then a total of 500 locations in study areas were selected. 2. Sorting the locations in which mammals exist: We surveyed each one of the 500 locations twice, and then confirmed that we found mammals at 492 of the 500 locations and analyzed 264 locations that the number of existing mammals was above average. 3. Analyzing the 264 locations with two indexes, the number and the frequency of the land use types: 5~7 types of land use were suitable. The types were forest, rice field, farm, river, and meadow, excluding building and road. 4. Selecting the locations that meet the above conditions: We sorted 89 locations and earmarked these points as "ecologically connected areas requiring preferential preservation" in order to expect continued existence of wildlife.
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장래익 ( Rai Ik Jang ),장갑수 ( Gab Sue Jang ),정옥식 ( Ok Sik Jung ),나정화 ( Jung Hwa Ra ) 한국환경보건기술학회(구 한국환경복원녹화기술학회) 2009 한국환경복원기술학회지 Vol.12 No.6
The purpose of this study is to detect the protection area around the Gewn-buk and Gewn-nam Mountains for making a sustainable ecological network. The protection area in the Gewn-buk and Gewn-nam Mountains was analyzed by using spatial data and a field survey for landscape conservation purposes. A survey scope was fixed using digital elevation model, and the protection area was finally determined based on the parcel map called as the Korea Land Information System (KLIS). Here we have several conclusions in this study. First, spatial data used in this study were a map of ecological and natural degree (MEND), forest distribution map, elevation map, slope map, and several maps for the protection area assigned by laws regarding to the natural resources. Second, we used 4 alternatives to determine the best choice for showing the ecological network in the study area. One alternative (alt. 3) of 4 ones was finally chosen as the best condition for making the ecological network. The condition in elevation and slope was a little modified to a lower level in alt. 3. The result derived from alt. 3 reflected the continuity and connectivity in the ecological network and we estimate that the protection area can protect the core area using the buffer zone around the ecological network. Finally the parcel-based protection area in the Gewn-buk and Gewn-nam Mountains had 493.92km2 of the core area, and 233.99km2 of the buffer zone, which means the parcel-based protection area increased by 97.76km2 in the core area, but decreased by 76.6lkm2 as of in the topographical map.
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