• Journal of the Korean Institute of Landscape Architecture
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• v.36 no.2
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• pp.99-112
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• 2008

The purpose of this study was to analyze on changes of ready constructed record(RCR) in landscape construction industry for 10 years from 1997 to 2006. For the study, according to the classification system of Korea construction industry, landscape construction industry were classified into landscape constructor as a general constructor, landscape planting constructor and landscape facilities constructor as special constructors. The results are as follows: 1. The RCR in landscape construction industry have increased for 10 years higher than other construction industry. Concretely the RCR ratio of landscape constructor has increased 0.9% in 1997 to 1.9% in 2006, the RCR ratio of landscape planting constructor 1.3% to 2.5%, and the RCR ratio of landscape facilities constructor 0.5% to 1.5%. Futhermore this increasing trend has been strengthened during the last a few years. 2. Differently from landscape constructor, the subcontract ratio of landscape planting constructor and landscape facilities constructor were higher, especially landscape facilities constructor was highest amount for 71.1% in the subcontract ratio. 3. The RCR of landscape construction industry in the metropolitan area including Seoul, Kyunggi, was higher than other region's, and the ratio of RCR of landscape constructor in this area was 53.5%, landscape planting constructor's 58.2%, and landscape facilities constructor 75.0%. 4. The yearly RCR per company and the RCR by project of landscape constructor and landscape planting constructor were stagnant. However, landscape facilities constructor's RCR showed an upward trend as years go by. This study was focused on the RCR of landscape construction industry, further study on the factors to affect the RCR of landscape construction industry and the RCR by project types is required in the near future.

• Proceedings of the Korean Institute of Landscape Architecture Conference
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• 2018.11a
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• pp.33-36
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• 2018

• Proceedings of the Korea Water Resources Association Conference
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• 2015.05a
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• pp.600-600
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• 2015

최근 정부에서는 농업용 저수지의 노쇠화를 해결하기 위해, 이수공간 및 홍수조절공간 추가 확보를 목표로 농업용 저수지 둑 높이기 사업을 실시하였다. 둑 높이기 사업을 통해 추가로 확보된 저수 공간을 효과적으로 활용하여 홍수에 대비하기 위해서는 저수지의 홍수 취약성에 대한 정량적인 평가가 선행되어야 한다. 또한 기후변화로 인한 강우강도 증가에 대비하기 위해서는 미래 예측 강우량에 대한 농업용 저수지의 홍수 취약성 평가가 필요한 실정이다. 따라서 본 연구에서는 기후변화를 고려하여 둑 높이기 사업에 따른 농업용저수지의 홍수 취약성 변화를 분석하고자 한다. 기초자료 구축을 위해 기상청에서 제공하는 RCP 4.5 기반의 미래강수자료를 편의보정 하였으며, 둑 높이기 사업 보고서를 통해 농업용 저수지의 제원들을 수집하였다. 이를 바탕으로 농업용 저수지 유역의 설계홍수량을 산정하였고, 저수지 모의 운영을 통해 홍수조절효과를 분석하였다. 홍수 취약성은 IPCC (2007)에서 제안한 방법에 따라 평가하였다. 문헌조사를 통해 기존에 사용되어 왔던 지표들을 선정하였고, 본 연구에서 수행한 저수지 모의 운영 결과를 바탕으로 홍수조절율 등 둑 높이기 사업의 효과를 반영할 수 있는 지표들을 추가로 선정하여 홍수 취약성 평가에 적용하였다. 본 연구의 결과는 둑 높이기 사업에 의한 홍수조절효과를 정량화 하고, 둑 높이기 저수지의 최적 운영을 위한 기초자료로 활용될 수 있을 것으로 사료된다.

• Proceedings of the Korean Institute of Landscape Architecture Conference
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• 2020.06a
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• pp.85-86
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• 2020

• Proceedings of the Korean Institute of Landscape Architecture Conference
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• 2021.03a
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• pp.16-18
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• 2021

• Proceedings of the Korea Water Resources Association Conference
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• 2017.05a
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• pp.429-429
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• 2017

4대강 살리기 사업의 일환으로 농업용 저수지를 대상으로 둑 높이기 사업이 수행되었으며, 추가 저수량 확보를 통해 하천에 하천유지유량을 공급하고 있다. 하천유지유량은 저수지별로 평균갈수량과 기준갈수량의 범위 내에서 방류되고 있으며, 이로 인해 하천 유황의 변동이 있을 것으로 예측되나, 이로 인한 연구는 미흡하게 진행되어 왔다. 본 연구에서는 둑 높이기 저수지에서 하천유지유량 방류에 따른 하류하천의 유황변동을 분석하고자 한다. 유역의 유출량은 HSPF(Hydrological Simulation Program-Fortran)를 이용하여 모의하였으며, 저수지에서 발생하는 유량은 인위적 유량으로 고려하여 모의하였다. 저수지에서 여수로로 자연월류되는 수량과 하천유지유량의 방류조건을 고려한 저수지 방류량을 산정하기 위해 저수지 물수지 모형을 사용하였으며, 산정된 방류량을 HSPF 모형의 입력자료로 활용하였다. 본 연구의 결과는 둑 높이기 저수지의 하천유지유량이 하천 유황변동에 미치는 영향을 확인할 수 있을 것으로 예측되며, 추후 수계별, 저수지 규모별 등에 따른 추가 분석이 필요할 것으로 사료된다.

• Proceedings of the Korea Water Resources Association Conference
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• 2022.05a
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• pp.499-499
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• 2022

급격한 도시화와 이로인한 불투수면의 증가는 유역의 물순환을 왜곡시키고 있다. 직접유출의 증가와 침투량 감소로 이어지며 이는 지하수 함유량의 감소와 하천건천화를 유발한다. 환경부는 더 이상의 물순환 왜곡을 막기위해 물환경보전법상의 물순환율을 정의하고 물순환 관리목표를 설정하였으며, 제3차 강우유출 비점오염원관리 종합대책에서 물순환 사업 추진을 위한 소권역 별 우선순위산정을 과제로써 제시하고 있다. 대표적인 물순환 사업은 저영향개발기법 설치이다. 저영향 개발기법은 토지 및 공간을 이용해야하기 때문에 설치비용이 높고 위치선정에 제약이 많으며 유지관리도 어렵다. 이에 물순환 사업에는 단순 불투수면 뿐만아니라 사회, 경제적 요소까지 고려하여야한다. 본 연구에서는 물순환 우선순위를 산정하기위해 불투수면뿐만 아니라 사회, 경제적 요소까지 고려한 종합적인 우선순위를 산정하였다. 유역 물순환 평가를 위해 PSR framework을 이용하였다. PSR framework는 OECD가 개발한 지속가능성 평가 개념이며, Pressure, State, Response 세 가지 요소로 구분해 평가하게된다. PSR framework의 기본 개념은 인간의 활동들이 환경에 압력 (P)를 주고, 이로 인해 자연의 질과 영향 (S)을 미치며, 이에대한 회복을 위해 인식과 행동을 통해 정책과 제도 등을 통해 반응 (R)한다는 것이다. 본 연구에서는 PSR framework의 평가요소 Pressure는 불투수면 및 강우, State는 물순환, 하수관거, 수질, 수생태계, Response는 협력, 인식, 재정, 토지로 구분하여 평가하였다. 최종적으로 불투수면적 감축 대상 소권역('30년 무대책 불투수면적률 25% 이상)소권역에 대하여 최종우선순위를 산정하였다.

• Journal of the Korean Institute of Landscape Architecture
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• v.52 no.3
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• pp.33-45
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• 2024

The government is promoting the reorganization of the construction indusrty under the theme of reorganizing the production system. However, it has been pointed out that this is contrary to the increasingly specialized and technical skills of the landscaping field. Therefore, it is urgent to respond to the construction industry integration policy and improve an appropriate work system and the content of the landscape field. Therefore, this study investigated the intention of the industry to reorganize the production system and the production structure of the landscape field, so that it can be used as a reference for future changes. As a result of the survey, 1) the perception of the reorganization policy is a highly requesting step-by-step promotion that reflects the industry's will, 2) the system is divided into generalization and specialization and is highly opposed to integration, 3) appropriate design and construction costs are the most important directions for improving landscape construction projects, and 4) reestablishing the relationship with related civil engineering works is important for improving detailed construction types. Overall, it was pointed out that the current specialized landscape construction does not sufficiently reflect the changing landscape business and is only appropriate for subcontractors in other industries. Therefore, it is necessary to promote policies that reflect this. In the long run, it is urgent to establish the status of landscape construction as an independent object, and it is necessary to supplement the legal system and change the industry accordingly.

• Journal of the Korean Institute of Landscape Architecture
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• v.47 no.1
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• pp.39-48
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• 2019

Based on the bidding data of the national marketplace for public procurement service from 2003 to 2015, this study investigated and analyzed the bidding trends of the landscape management public consignment service by analyzing total bidding, type, client, region, license. The results are as follows. First, the total number of bids for civilian consignment services in landscape management increased by 1,112 cases, corresponding to a 487.7% increase over 10 years, and the total bidding amount increased by 144,504 million won, corresponding to a 382.5% increase. Second, in 10 years, the proportion of landscape management in landscaping works increased by 10%, and the bidding amount increased by 3%. Third, in the analysis of bidding trends by type, green areas showed the greatest growth in the number of bids, while the greenery of buildings showed the highest increase in the bid amount. Fourth, local autonomous entities, Gyeonggi province, and the landscaping planting construction industry showed the highest increase in the number of bids and the amount in each field such as client, region, and license. In summary, the number of cases and the bidding amount is increasing year by year. Considering the increasing number of users and demands thereof, the number of bids and the amount of consignment service for landscape management will continue to increase. The purpose of this study is to investigate and systematically analyze the tendency of bidding for 10 years for the private consignment service of landscape management in the current situation, where the importance of landscape management is increasingly emphasized. Another purpose of this study is to discern the necessity of the landscape management business and to provide the basis for incorporating the landscape management business into the professional construction industry in the future, thus providing opportunities for widening the expertise and diversity of the landscaping field. For the following study, the legal basis of landscape management, qualification, equipment standards, calculation of management cost per unit, and the appropriateness of the management cost should be considered.

• Journal of the Korean Institute of Landscape Architecture
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• v.46 no.6
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• pp.1-16
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• 2018

The decline in the construction industry has led to a decrease the profitability of small and medium-sized landscape contractors. To relieve this situation, small and medium-sized landscape contractors have continued to proactively find ways to enter global construction markets. However, many small and medium-sized landscape contractors face risks due to their lack of capacity and insufficient preparations to extend the business abroad. Thus, this study aims to analyze the current condition of the Vietnamese construction market and the related risk factors. It then suggests strategies to improve the small and medium-sized landscape contractors' competitiveness in that market. We investigated the business climate and analyzed risk factors. Finally, we developed expansion strategies and conducted in-depth interviews with six overseas construction professionals. The study results first showed that efforts to improve infrastructure and the increased demand for housing in Vietnam will lead to more opportunities for small and medium-sized landscape contractors entering the Vietnamese construction market. However, changes in the Vietnamese business climate may act as a variable. Second, we found that small and medium-sized landscape contractors' risk factors are mainly related to laws and regulations, government finance, market fluctuations, public administration system, minimum wage increases, financing and bonds, contracting, trees and materials, and design errors. Finally, small and medium-sized landscape contractors are required to consider the following when seeking to enter the Vietnamese construction market: short-term strategy and mid-to-long-term strategy. This study will be used as the basis for small and medium-sized landscape contractors to plan to enter the Vietnamese construction market and to contribute to the expansion of the global construction market in the landscape industry.