• 한국토양비료학회지
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• 제45권5호
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• pp.733-737
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• 2012

The objectives of this study were to investigate soil chemical properties for forest rehabilitation and suggest design and management in abandoned coal mine areas in Mungyeong, Gyeongsangbuk-do. Total study sites were 10 sites, and soil analysis particular were soil pH, TOC, total-N, C/N ratio, A.v. $P_2O_5$, and CEC. Because most of study sites showed soil pH from 5.0 to 7.0, it seems that soil pH does not affect growth of vegetation. But soil pH in Danbong1 was acidic (pH 4.6), so it is needed to improve with ameliorant such as limestone. Most of study sites is necessary to manage for organic matter and Nitrogen, because there sites showed lower value of TOC and total-N than general forest. The values of A.v. $P_2O_5$ and CEC were good in most of study sites, so it seems that they do not have effect on vegetation growth. All of soil factors has no regression according to elapsed time after rehabilitation. TOC, total-N and A.v. $P_2O_5$ among soil properties have positive relationship between each other. It is necessary to fertilizer for organic matter and Nitroge because of value in TOC, total-N and C/N ratio. The results of this study were analyzed only one time. So, long-term monitoring for soil properties is important for the correct forest rehabilitation and management.

• 헤리티지:역사와 과학
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• 제53권2호
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• pp.110-139
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• 2020

간척은 인구 증가에 따른 식량 확보를 위한 경작지 등 다양한 용도로 활용하기 위하여 근해의 간석지에 제방을 축조하여 새롭게 토지를 창출하는 행위이다. 고대부터 간척으로 인하여 토지의 확대 및 개발, 인구의 이동, 도시의 형성이라는 환경적, 경제적, 사회적, 문화적인 측면에서 급격한 변화가 초래되었다는 사실에 기반하여 간척 시설물의 가치를 검토하고 보존 및 활용 방안을 다루었다. 간척 문화는 간척에 따른 제반 환경의 변화에서 생성된 사람들의 인식과 관념 체계, 행위 양식, 문화적 생성물을 총칭하며, 간척에 의해 직·간접적으로 생성된 유형 유산과 무형 유산, 그리고 자연 유산을 간척문화유산으로 정의하였다. 간척을 추진했던 역사적 배경이 시간의 추이에 따라 다르며, 간척 시설물은 역사성, 학술성, 희소성이 있기 때문에 문화유산으로서의 가치가 있음을 확인하였다. 새만금 방조제 건설 이후 그 본래의 기능을 마감한 광활, 계화 방조제를 중심으로 수많은 간척문화유산이 멸실 위기에 놓여 있다. 활용은 보존을 기본 전제로 한다는 생각 아래 제도적 측면에서의 보존 방안을 제시하였다. 먼저 근현대 간척 시설물에 대해 등록문화재, 향토문화유산, 미래유산, 농업유산으로 지정하여 관리할 필요가 있다. 특히 고려~조선시대 및 1950년대 이후에 조성된 간척 시설물이 문화재로 지정되지 않은 것으로 확인되어, 이 시기를 비롯하여 전국 간척자료에 대한 전수 조사를 통해 간척 시설물의 특징과 가치에 대한 검토가 요구된다. 우리 삶과 밀착되어 그간 주목받지 못했던 간척문화유산의 효율적이고 지속 가능한 활용 방안으로는 그 유산에 내재된 스토리 발굴, 간척 자원의 효율적인 활용을 위한 거버넌스의 구성, 해당 간척 지역의 역사와 문화를 수집하고 전시하는 박물관 건립이 필요하다. 마지막으로 간척사업의 경험이 있는 국가들과의 연계를 통해 간척에 따른 사회, 문화, 환경 등 국제적 이슈에 대해 공동으로 대처하고 인류 발전을 위한 다양한 사업을 실행할 수 있을 것이다.

• 한국환경복원기술학회지
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• 제14권4호
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• pp.67-80
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• 2011

This study is focused upon developing repairing and restoration methodologies of the Paleolithic sites. The Paleolithic era is not only the remote past, which ended ten thounds years ago, but the period of much different ecological condition compared with that of these days. There have been two kinds of conservation method adopted to restoration of Paleolithic sites which are historic park and ecological park. But there left not much historic remains than ecological sources in most Paleolithic sites, restoring them into ecological park is thought to be more reasonable for the purpose of conserving sites and remains. The first step of restoring Paleolithic sites is reconstructing environmental background in which they earned a living with their own life style at that time. There are three ways of ecological restoration for prehistoric sites, which are the reclamation, the rehabilitation, and the restoration. The reclamation requires physical modification, and the rehabilitation does biological modification, but only the restoration requires improved management. Among them, the most desirable way applicable upon the Paleolithic sites restitution is the reclamation.

• 한국지반공학회:학술대회논문집
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• 한국지반공학회 2006년도 춘계 학술발표회 논문집
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• pp.1054-1059
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• 2006

For reclamaing fill materials, hydraulic fill is needed in domestic parts of the reclamation sites every year. Engineering properties of soils after reclamation is calculated by laboratory. But before or after reclamation, reclamation quatities depend on the depth from the ground surface when hydraulic fill is dumped. In this paper, the engineering properties on the depth from ground surface are assumed by cone penetration test where fine grained soft soil is formed is proposed through several sites.

• Journal of Korean Society for Atmospheric Environment
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• 제15권E호
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• pp.39-43
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• 1999

To help idntify the potential sources of volatile organic sulfur compounds within the continental environment, we have conducted preliminary measurements of dimethylsulfide(DMS) during field campains held from three reference sites. These sampling sites were located within a waste reclamation facility in Won Ju City, Kang Won Province. The results of our measurements showed that DMS levels spanned over 1 to 55 pptv with a mean and 1 standard deviation(1SD) of 12 and 18 pptv(N=13). In a comparison of the data derived from the strongest sources, i.e., oceanic environment, the DMS levels in thre reclamation facility were jpronouncingly low with high day-to-night concentration ratios. It was noted that a significant difference in DMS levels between daytime and nighttime periods was mainly driven by a few exceptional data measured during daytime. Despite limitations of our measurement data in deriving meaningful interpretations of spatiotemporal distributions of DMS in inland facilities, the existence of extraordinary trends, i.e., especially "lower-than-expectedL" DMS values, can be explained in terms of mixed effects of several factors. Most importantly, we can infer that the rates of DMS production and of its destruction in the study site are at or near steady-state condition. Another possibility is that DMS is not adequate enough to explain the generally malordorous environment of reclamation sites, of particular in Won Ju area.n Ju area.

• Journal of Microbiology and Biotechnology
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• 제24권3호
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• pp.313-323
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• 2014

Significant alteration in the microbial community can occur across reclamation areas suffering subsidence from mining. A reclamation site undergoing fertilization practices and an adjacent coal-excavated subsidence site (sites A and B, respectively) were examined to characterize the bacterial diversity using 454 high-throughput 16S rDNA sequencing. The dominant taxonomic groups in both the sites were Proteobacteria, Acidobacteria, Bacteroidetes, Betaproteobacteria, Actinobacteria, Gammaproteobacteria, Alphaproteobacteria, Deltaproteobacteria, Chloroflexi, and Firmicutes. However, the bacterial communities' abundance, diversity, and composition differed significantly between the sites. Site A presented higher bacterial diversity and more complex community structures than site B. The majority of sequences related to Proteobacteria, Gemmatimonadetes, Chloroflexi, Nitrospirae, Firmicutes, Betaproteobacteria, Deltaproteobacteria, and Anaerolineae were from site A; whereas those related to Actinobacteria, Planctomycetes, Bacteroidetes, Verrucomicrobia, Gammaproteobacteria, Nitriliruptoria, Alphaproteobacteria, and Phycisphaerae originated from site B. The distribution of some bacterial groups and subgroups in the two sites correlated with soil properties and vegetation due to reclamation practice. Site A exhibited enriched bacterial community, soil organic matter (SOM), and total nitrogen (TN), suggesting the presence of relatively diverse microorganisms. SOM and TN were important factors shaping the underlying microbial communities. Furthermore, the specific plant functional group (legumes) was also an important factor influencing soil microbial community composition. Thus, the effectiveness of 454 pyrosequencing in analyzing soil bacterial diversity was validated and an association between land ecological system restoration, mostly mediated by microbial communities, and an improvement in soil properties in coal-mining reclamation areas was suggested.

• 한국토양비료학회지
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• 제48권6호
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• pp.744-750
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• 2015

The objectives of this study were to investigate soil chemical characteristics for forest rehabilitation and suggest management in abandoned coal mine areas in Boryeong City, Chungcheongnam-do. Total study sites were seven sites, and soil properties analyzed were soil pH, total organic carbon (TOC), total-N, C/N ratio, and available $P_2O_5$ (A.v. P). Average soil pH (range) was 5.9 (4.5~7.0). Three study sites (Samgwang, Shinsung1, and Shimwon1) showed lower soil pH than standard (pH 5.6~7.3) of Korea Industrial Standards (KS) for abandoned coal mine forest rehabilitation. Average contents of TOC, and total-N were 1.5% (0.1~4.7%), and 0.10% (0.03~0.23%), respectively. Five study sites where the collapsed time was less than 10 years (Wangjashingang, Wonpoong, Samgwang, Shinsung1, and Shinsung2) showed lower TOC level than standard of KS (more than 1.2%). Wangjashingang, Wonpoong, Samgwang, and Shinsung1 showed lower level of total-N than standard of KS (more than 0.09%). C/N ratio of six study sites except Shimwon1 was out of proper range (15:1~30:1). Average A.v. P (range) was $20.7mgkg^{-1}$ (4.8~63.1), less than other abandoned coal mine fores rehabilitation areas in Mungyong City, and Hwasun-gun. TOC, total N and A.v. P increased with elapsed time from forest rehabilitation, while other soil properties did not show distinct pattern. Betula platyphylla was planted in Samkwang and Sinsung where soil pH was less than KS standard. Because the growth of Betula platyphylla can be limited in acid soil, it is necessary to neutralize soil pH to proper level with some soil amendment such as lime or shell of oyster. Furthermore, TOC, total-N and A.v. P in early stage of forest rehabilitation showed lower level than proper to vegetation growth. Therefore it needs continuous monitoring of soil characteristics and fertilization for vegetation growth and influx from surrounding forest in early stage of rehabilitation.

• 한국토양비료학회지
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• 제44권6호
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• pp.1010-1015
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• 2011

The objectives of this study were to investigate soil chemical characteristics for forest rehabilitation and suggest management in abandoned coal mine areas in Hwasun-gun, South Jeolla Province. Total study sites were 8 sites, and soil analysis particular were soil pH, TOC, total-N, C/N ratio, Avail. $P_2O_5$, and CEC. Average soil pH was 5.8 (4.7~6.4). Average contents of TOC, total-N and C/N ratio were 1.1% (0.2~2.0%), 0.08% (0.02~0.13%) and 15.0 (7.9~31.4), respectively. Average Avail. $P_2O_5$ was $8.3mg\;kg^{-1}$ (2.7~15.0) and Average CEC was $13.7cmol_c\;kg^{-1}$ ($9.9{\sim}18.5cmol_c\;kg^{-1}$). Soil pH was decreased according to elapsed time from forest rehabilitation, while TOC, total N and CEC were increased. Av. $P_2O_5$ did not show any relationship with elapsed time. Soil pH was stable comparing with general forest soil in South Jeolla Province (5.1), while contents of TOC and total N were lower than general forest soil in South Jeolla Province (4.9% and 0.18%, respectively). Therefore, sustainable managements such as fertilization for TOC and total N are necessary for good rooting and growth of vegetation.

• 한국지하수토양환경학회:학술대회논문집
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• 한국지하수토양환경학회 1996년도 사용종료 매립지의 안정화 에 관한 국제 세미나
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• pp.87-95
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• 1996

The stabilization and reclamation of old disposal sites is becoming more important as significant numbers of disposal sites are closed and abandoned. This technical paper covers an overview of the key issues and methodologies for stabilizing and constructing facilities on old landfills. The slide portion of this presentation also include photographs showing actual construction activities. The key issues that are prevalent in remediating and closing old landfills are : correcting the stormwater flow, leachate breakout, constructing cover caps, controlling landfill gas migration and odors, cleanup groundwater and stabilizing side slopes. Some key techniques for constructing facilities on old landfills include： use of piling, installation of active landfill gas systems, providing LFG barriers under buildings, using utilidors and flexible utility interfaces and designing for site settlement. This Paper provides proven conceptual methods for solving these problems.

• 자원환경지질
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• 제53권6호
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• pp.771-779
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• 2020

이 연구의 목적은 국내 광산폐기물 적치장 64개소에서 발생하는 침출수의 사후 관리 우선순위를 도출하는 것이다. 이를 위하여 계층분석법(AHP)을 활용하여 침출수 수질, 유출량, 기타 영향요소 등의 평가항목들과 총 10가지의 세부 요소를 선정하고 각각의 가중치를 산출하였다. 가중치는 침출수의 수질 0.769, 유출량 0.147, 기타영향요소 0.084로 산출되어 관리를 위한 우선순위 선정 시 수질부문이 설문조사 평가자들이 가장 중요하게 생각하는 항목으로 확인되었다. 조사결과를 바탕으로 총 64개 적치장 침출수 평가결과는 관리의 시급성에 따라 I~V 등급으로 구분하였으며, I 등급 10개소, II 등급 1개소, III 등급 1개소, IV 등급 33개소, V 등급 19개소로 평가되었다.