제3차 전국자연환경조사 지형분야 등급부여체계의 적정성과 개선방안

윤광성 ( Kwang Sung Yun ),신영호 ( Young Ho Shin ) 한국지형학회 2015 한국지형학회지 Vol.22 No.1

In this study, we examined characteristics of grade evaluation system of geomorphology part in the 3rd Natural Environment Survey by analyzing its performed data and derived improvement of grade evaluation system which secures appropriateness and objectivity. We regard that grade evaluation system has not enough appropriateness and objectivity, although output of geomorphology part contribute various deals to academic communities and general public. There were several problems; unequaled ratio between high grade and low grade, biased evaluation in some evaluation factors, redundancy between evaluation factors, and deviation of importance values between evaluation factors by geomorphic groups and surveyors respectively. To overcome these problems, we proposed an improvement scheme of geomorphic grade evaluation system, which is focused to point-based grading method, subdividing evaluation factors, avoidance from redundancy by detailed guideline, intuitive and objective grading and so on. The proposed improvement scheme will be a touchstone of related discussion in geomorphologic group and be make progress into more appropriate and objective one by a wide-ranging discussion.

제3차 전국자연환경조사 지형분야의 성과와제4차 조사의 특징 및 발전방향 제시

윤광성 ( Kwang Sung Yun ),오인순 ( In Sun Oh ),강지현 ( Ji Hyun Kang ),이재호 ( Jae Ho Lee ),김성환 ( Sung Hwan Kim ) 한국지형학회 2014 한국지형학회지 Vol.21 No.3

전국자연환경조사는 전국토를 대상으로 자연생태계 전반을 조사하는 국가사업으로 최종결과는 생태·자연도에 반영되어 자연환경 평가 자료로 이용되고 있다. 이 연구는 제3차 전국자연환경조사 지형분야의 성과를 고찰하고 제4차 조사의 특징과 지형분야가 나아가야할 발전방향을 제시하는 것을 목적으로 한다. 제3차 전국자연환경조사 기간 동안 총 17,076개 지점이 조사되었으며, 그 중 절대보전지형인 Ⅰ등급지형은 2,654개 지점이, 보전지형 Ⅱ등급지형은 3,876개 지점이 조사되어 생태·자연도에 반영되는 성과를 거두었다. 제4차 조사의 주요 특징은 면분류의 정확성을 높이는데 있다. 지형조사 분류표와 면분류 상세표를 신규로 추가하여 경계설정 및 속성정보를 보다 명확히 하도록 명시하였다. 제4차 조사는 등급분류체계에 있어 평가항목의 세부기준 제시와 세분화의 기준을 설정하여 보다 객관화된 조사 방법(안)이 마련되어야 할 것이다. “Natural Environment Survey” is the law-bound, nationwide-scaled, multidisciplinary project that has been executed by the Ministry of Environment(MOE) since 1988. The purpose of the project is to identify and map the natural resources worthy of conservation, including landform, wild plants and animals. The 2nd and the 3rd Natural Environment Survey (1997-2012) made it possible to release the first version of National Maps of Ecosystem and Nature in 2007, and to update the information on mapped natural resources and to identify the new ones for including the next version of the Maps in 2013. This article aims to introduce the main achievement of the 3rd survey and the main direction of the 4th survey from a geomorphological perspective. Through the 3rd Survey, 17,076 geomorphological resources have been found and 6,530 of them have been classified as the resources necessary for protection and conservation. The 4th Survey has adopted the boundary of geomorphological resources delineation in order to improve the accuracy of the resource distribution. It is also necessary to adopt a refined evaluation system for each coded item.

묵논 습지의 토양 및 식생 특성

윤광성(Kwang Sung Yun) 한국지역지리학회 2007 한국지역지리학회지 Vol.13 No.2

본 연구의 목적은 휴경 연차에 따른 논토양의 물리·화학적 특성과 식생의 변화를 분석함으로써 묵논의 습지 생태계로서의 가치와 다양한 생물 서식처로서의 기능에 적합한지를 평가하는 것이다. 본 연구의 물리·화학적 특성과 식생 천이과정, 그리고 묵논 습지로서의 기능적 가치 분석 결과를 요약하면 다음과 같다. 첫째, 휴경 연수가 증가 할수록 표토가 조립화 되는 경향으로 나타났다. 둘째, 휴경 연수에 따라 유기물과 유효인산, 칼슘의 함량이 차이가 나타났으며, 칼륨과 마그네슘, CEC는 크게 변화지 않는 것으로 분석되었다. 셋째, 식생 천이과정의 단계별로 식물종 구성비를 보면, 출현종수는 초기에 14종에서 중기로 갈수록 증가하고 후기로 가면 다시 줄어드는 것으로 나타났다. 식물 조사 지소별 종구성적 조합에 의한 유사도 분석 결과를 보면 크게 천이단계별로 3그룹으로 분류되어 나타났다. 천이 초기는 댓골 상단, 하단이 중기 단계는 논방골 1단, 2단, 3단이, 천이 후기는 논방골 4단, 5단으로 그룹화 되었다. 넷째, 환경부 습지기능평가표와 RAM을 기준으로 논방골 묵논 습지에 대한 기능가치분석을 실시 한 결과 전체 가치평균이 2.13으로 "보통"에 해당하는 것으로 나타났다. The Purpose of this study is to evaluate the value of abandoned paddy fields as wetland ecosystems and their suitability as habitats for various species. Physical and chemical characteristics of soils and the change of vegetation in paddy fields were analysed with the passage of time after cease of cultivation. The results of analyses for soil characteristics, vegetation succession, and functional values of abandoned paddy fields as wetlands were as follows: First, top soils become coarser as years after abandonment increase. Second, as the years of abandonment passed, there were significant differences in organic matter, available phosphorate and calcium, while not in magnesium and cation exchange capacity(CEC). Third, species increased from early stage till middle stage, and decreased in late stage. In similarity analysis of species composition, sites were classified into three groups according to the stage of succession. Upper and lower terraces at Daetgol were classified as early stage of succession. The 1st, 2nd and 3rd terraces at Nonbanggol were in middle stage, while the 4th and 5th were in late stage. Forth, according to evaluation sheets of MoE and RAM(Rapid Assessment Method) standards, the overall average of functional value of Nonbanggol site were 2.13, classified as "common".

제2차 전국자연환경조사 지형분야의 성과와 제3차 조사의 특징

김성환 ( Sung Hwan Kim ),윤광성 ( Kwang Sung Yun ) 한국지형학회 2008 한국지형학회지 Vol.15 No.4

무인항공기를 활용한 금강 하도내의 퇴적지형 변화 특성 연구: 공주보 개방 전·후를 중심으로

윤혜연 ( Yoon Hye-yeon ),윤광성 ( Yun Kwang-sung ),장동호 ( Jang Dong-ho ) 한국지형학회 2021 한국지형학회지 Vol.28 No.4

In this study is aerial photos and UAV(Unmanned Aerial Vehicle) images were used to analyzed the characteristics of depositional landform changes in the Geum river channels before and after the opening gate of Gongju weir. Based on the depositional landform classification result, the main stream and the bare land occupied most of the area in all periods, and also found that the main stream, mid-channel island, and sand bar occupied a greater degree of area increase or decrease compared to other landforms in the classification items. As a result of analyzing the characteristics of depositional landform changes before and after the opening gate of Gongju weir, it is judged that the depositional landforms have changed due to the decreased water level of the Geum river after the opening of the weir, the summer rainy season and typhoons, river stabilization after the effluence of Daecheong dam, supply and deposition of river sediments and fixation of vegetation. The results derived from this study can be used as basic data for the study of river depositional landforms and the establishment of management and conservation plans for the landforms in river channels.

국가습지 DB를 활용한 남한 내륙습지의 토지피복 유형 특성 분석

이예슬 ( Lee Ye-seul ),윤혜연 ( Yoon Hye-yeon ),이성호 ( Lee Seong-ho ),장동호 ( Jang Dong-ho ),윤광성 ( Yun Kwang-sung ),이창수 ( Lee Chang-su ) 한국지형학회 2020 한국지형학회지 Vol.27 No.4

This study modified the properties and boundaries of the inland wetland types through the structural edit of the National Wetland DB, and analyzed the characteristics of the different land cover by area and the entire inland wetlands of South Korea. The inland wetlands of the Gangwon Basin had a small area of waters. In addition, the ratio of natural barren was high, reflecting the characteristics of the upper reaches of the large river in the east and west part of Gangwon Province. The Geum River Basin had a high percentage of aggregate land due to the development of large alluvial land, and the ratio of artistic barren was low, so various ecosystem service of wetland elements were distributed evenly. The Nakdong River Basin had a high proportion of waters as water level in the channel rose due to the installation of 4 Major Rivers Beam, and the ratio of Natural barren was low. Moreover, the water level of the main attributes flowing into the Nakdong River drainage system was not high, so the ratio of vegetation concentration was high. The Yeongsan River Basin showed that Waters had the high proportion. And the distribution of Natural barrens represented differently according to the Yeongsan River Basin and the Seomjin River Basin. Finally, Sand and Gravels supplied to rivers during precipitation were deposited in the main stream of the Han River Basin, and the differences between the side and high side was large in the area, reflecting the characteristics of the mouth of a river, so the Natural barren of Clay was distributed.