• 제목/요약/키워드: integrated land use

검색결과 211건 처리시간 0.024초

Assessment of streamflow variation considering long-term land-use change in a watershed

  • Noh, Joonwoo;Kim, Yeonsu;Yu, Wansik;Yu, Jisoo
    • 농업과학연구
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    • 제48권3호
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    • pp.629-642
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    • 2021
  • Land-use change has an important role in the hydrologic characteristics of watersheds because it alters various hydrologic components such as interception, infiltration, and evapotranspiration. For example, rapid urbanization in a watershed reduces infiltration rates and increases peak flow which lead to changes in the hydrologic responses. In this study, a physical hydrologic model the soil and water assessment tool (SWAT) was used to assess long-term continuous daily streamflow corresponding to land-use changes that occurred in the Naesungchun river watershed. For a 30-year model simulation, 3 different land-use maps of the 1990s, 2000s, and 2010s were used to identify the impacts of the land-use changes. Using SWAT-CUP (calibration and uncertainty program), an automated parameter calibration tool, 23 parameters were selected, optimized and compared with the daily streamflow data observed at the upstream, midstream and downstream locations of the watershed. The statistical indexes used for the model calibration and validation show that the model performance is improved at the downstream location of the Naesungchun river. The simulated streamflow in the mainstream considering land-use change increases up to -2 - 30 cm compared with the results simulated with the single land-use map. However, the difference was not significant in the tributaries with or without the impact of land-use change.

Diversity, Interspecific Interaction and Abundance of Undergrowth in Monocultures and Integrated Systems of Natural Rubber Plantation in Danzhou, Southern China

  • Chima, Uzoma Darlington;Qi, Dongling;Wu, Zhixiang;Lan, Guoyu;Chen, Li
    • Journal of Forest and Environmental Science
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    • 제38권2호
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    • pp.75-89
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    • 2022
  • The negative impact of monoculture rubber plantations on biodiversity and associated ecological processes/ecosystem services has led to suggestions on the use of integrated land use systems for rubber cultivation and production in order to ensure environmental sustainability. However, there is paucity of information on the effect of such integrated land use systems on the diversity and abundance of the rubber plantation undergrowth. We evaluated and compared undergrowth plant species composition, richness, abundance, diversity and interaction, in three integrated systems (Rubber-Strelitzia reginae Integrated System - RSrIS, Rubber-Podocarpus nagi Integrated System - RPnIS & Naturally Managed Rubber Plantation - NMRP) with three Rubber Monoculture Plantations (RMP1, RMP2 & RMP3) adjacent to the integrated systems, respectively, at the Investigation and Experiment Station of Tropical Crops, Danzhou, Hainan, China. Undergrowth species density was higher in the rubber monocultures than in the integrated systems except in RSrIS. Species richness and diversity were also higher in the monocultures except in NMRP. Species similarity/interaction between the monocultures and the integrated systems was highest between RMP3 and NMRP. The NRMP proved to be the best model of natural rubber integrated system for the conservation of undergrowth species richness, diversity and interspecific interaction. However, the conservation of undergrowth species in other forms of integrated natural systems can be enhanced by considering the ecology of species to be integrated in terms of their growth characteristics, competitive nature, and ability to grow in association with other species.

도시관리계획수립을 위한 토지적성평가시스템 구축 -진주시를 중심으로- (Construction of Land Use Suitability Assessment System for Establishing Urban Management Plan - Focused on Jinju City -)

  • 유환희;김성삼;구흥대;정동기
    • 한국측량학회:학술대회논문집
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    • 한국측량학회 2004년도 추계학술발표회 논문집
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    • pp.311-318
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    • 2004
  • The Land Use Suitability Assessment System was recently introduced by the $\ulcorner$Act on Planning and Utilization of the National Territory$\lrcorner$ to use, manage, and develop the national territory, which integrated the National Land Use and Management Act and the Urban Planning Act. It provides a guideline for classifying land use into 5 classes according to locational characteristics, usability, and developmental conditions of land in the vicinity. The database is constructed with LMIS cadastral data, posted land price data, and data of related agencies such as the Korea Forest Service, the Ministry of Environment, and the Korea Water Resources Corporation etc. After the database construction, individual parcels are analysed by steps and classified into 3 sub areas - conservation, agriculture, and development using GIS. In this paper we evaluate land use suitability for individual parcels by constructing the Land Use Suitability Assessment System for Jinju city. Therefore, we suggest that this system provides vital data in the urban management planning process.

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Consequences of land use change on bird distribution at Sakaerat Environmental Research Station

  • Trisurat, Yongyut;Duengkae, Prateep
    • Journal of Ecology and Environment
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    • 제34권2호
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    • pp.203-214
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    • 2011
  • The objectives of this research were to predict land-use/land-cover change at the Sakaerat Environmental Research Station (SERS) and to analyze its consequences on the distribution for Black-crested Bulbul (Pycnonotus melanicterus), which is a popular species for bird-watching activity. The Dyna-CLUE model was used to determine land-use allocation between 2008 and 2020 under two scenarios. Trend scenario was a continuation of recent land-use change (2002-2008), while the integrated land-use management scenario aimed to protect 45% of study area under intact forest, rehabilitated forest and reforestation for renewable energy. The maximum entropy model (Maxent), Geographic Information System (GIS) and FRAGSTATS package were used to predict bird occurrence and assess landscape fragmentation indices, respectively. The results revealed that parts of secondary growth, agriculture areas and dry dipterocarp forest close to road networks would be converted to other land use classes, especially eucalyptus plantation. Distance to dry evergreen forest, distance to secondary growth and distance to road were important factors for Black-crested Bulbul distribution because this species prefers to inhabit ecotones between dense forest and open woodland. The predicted for occurrence of Black-crested Bulbul in 2008 covers an area of 3,802 ha and relatively reduces to 3,342 ha in 2020 for trend scenario and to 3,627 ha for integrated-land use management scenario. However, intact habitats would be severely fragmented, which can be noticed by total habitat area, largest patch index and total core area indices, especially under the trend scenario. These consequences are likely to diminish the recreation and education values of the SERS to the public.

토지이용-교통 통합 모형을 활용한 도시 환경 영향 예측 방법론 개발 (Developing a Method for Estimating Urban Environmental Impact Using an Integrated Land Use-Transport Model)

  • 허혜정;양충헌;윤천주;김인수;성정곤
    • 대한교통학회지
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    • 제33권3호
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    • pp.294-303
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    • 2015
  • 이 논문은 도시의 장래 탄소 배출량과 환경적 영향을 예측하는 방법론에 대하여 설명하고 있다. 다양한 저탄소 도시/교통정책의 시행으로 인한 장래의 토지이용과 교통의 변화를 예측하기 위하여 토지이용 통합 모형인 DELTA, OmniTRANS 조합을 적용하였다. 또한, 이러한 모형과 통합하기에 적합한 배출량 산정 모형과 확산모형을 선정하여 사용하였다. 개발 방법론의 결과 값인 토지이용과 통행 활동으로 인한 이산화탄소 및 대기오염 물질의 배출량, 오염 물질의 농도, 통합 대기질 지수 등이 GIS 기반의 지도에 표출되도록 하였다. 수원시를 대상으로 프로토타입을 개발하고 결과 값의 표출 사례를 논문에 예시하였다. 개발 방법론은 환경 친화적인 도시 정책의 효과를 알고자 하는 정책 결정자들에게 유용하게 사용될 수 있을 것으로 기대된다.

난개발과 농어촌지역 토지이용 관련법규에 관한 연구 (A Study on disorderly developments and the laws related to land use in rural areas)

  • 이을규
    • 한국농촌건축학회논문집
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    • 제15권2호
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    • pp.53-60
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    • 2013
  • In recent years, several problems occur due to irrational development in rural areas. The first, disorderly development and Encroachment of farmland, Small factory built in rural areas leads to a lack of infrastructure. it is the damage factors of good scenery in the rural areas. Water pollution and environmental pollution from the accommodations and restaurants in the good scenery area is serious. To solve this problems, we should establish the systematic land use plan and landscape plan, and integrated spatial and business plan in rural areas. In order to increase the effectiveness of land use planning in rural projects, We should establish the land use plan in rural areas of the city, state, and national levels of regional plan. We need to prescribe in "National Land Use Planning Law" the facilities, can install it according to the characteristics of rural land programming. we can prescribe the detail regulations by "Rural Maintenance Law". In order to solve the problems the lack of professionalism of the current agricultural policies of the Review Committee, We need to consider a new "rural planning committee" consisting.

Housing / Urban Development Integrated with Flood-Control Reservoirs in Japan

  • Watanabe, Naoyuki
    • 토지주택연구
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    • 제5권3호
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    • pp.203-214
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    • 2014
  • The purpose of this paper is to introduce two integrated urban development projects in Japan that take full advantage of flood-control reservoirs: the Tetsugakudo Park Collective Housing Development Project and the Koshigaya Lake Town Project. The former project - implemented cooperatively by the Tokyo metropolitan government in charge of river management, Shinjuku and Nakano wards (in Tokyo) responsible for park management, and the Urban Renaissance Agency, a housing project developer - set a significant precedent for three-dimensional river use by realizing the three-dimensional integrated development of a flood control reservoir, a park, and collective housing. The Koshigaya Lake Town Project, launched as a drastic storm water management measure for a low-lying area often plagued by flooding, has achieved a sustainable coexistence between the waterfront environment and the urban living environment, with an artificial flood-control reservoir as the core for urban development. This project is fully committed to environmental coexistence through the optimal use of local environmental resources, with the cooperation of the central government, Saitama Prefecture and Koshigaya City.

INMARSAT-C를 통한 인트라넷 기반의 통합 통신 서비스의 설계 및 구현 (Design and Implementation of an Intranet-based Integrated Communication Services via INMARSAT-C)

  • 신송아;강병훈;임재홍
    • 한국항해학회지
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    • 제24권4호
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    • pp.299-312
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    • 2000
  • Because shore(ship) to ship(shore) communication service via INMARSAT pay expensive cost, satellite service typically use two stage service that land users dial up LES(Land Earth Station) for sending or receiving message. In order to send and receive message, land users must maintain online state with LES on dedicated line. Also, two stage INMARSAT communication service must consume long time that processes step by step. In case of large company, they have own communication system, but small companys communicate simple messages with only telex. This paper describes the design and implementation of an integrated communication services via INMARSAT-C. This system uses inexpensive INMARSAT-C for transmission between ship and land. Because this system provides web and E-Mail interface, users send and receive messages easily and quickly. This system provides most users with inexpensive and easy communication facilities between ship and land.

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에머지(Emergy) 개념을 이용한 산지가치의 계량화에 관한 연구 (A Study on the Quantification of Forest Land Values Using the Emergy Synthesis)

  • 김남국;김진이;박동기;이석모
    • 한국환경과학회지
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    • 제17권3호
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    • pp.305-314
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    • 2008
  • As forest land takes up 65% of the Korean peninsula, there have been continuing conflicts between the development and conservation of forest land. As the income level has changed over time, the usage of forest land in society has changed. There has been increasing demands for forest land for urban development and recreational use. On the other hand, a large proportion of the land is required to be preserved for the forest and the natural ecosystem in it. The existing management system for the forest land has been designed focusing on the management of the trees on the land, and not the land itself. Due to this limitation, the current management system of forest land has failed to protect the forest land from being developed indiscreetly, making it difficult to conserve and develop the forest land in an efficient way. A major question in forest land management is how to integrate economic use activities with the supporting ecosystems to maximize performance of the ecological-economic system. In order to promote sustainable use of forest resources, and to achieve efficient forest land management, it is prerequisite to evaluation on forest resources of natural ecosystems. Quantitative measures are needed that signify how necessary the services and products of forested ecosystems are to human endeavors. In this study, the natural wealth provided by forest land was quantified based on emergy synthesis. Emergy is a universal measure of real wealth of the work of nature and society made on a common basis. Thus, Calculations of emergy provide a basis for making choices about environment and economy following the general public policy to maximize real wealth. The goals of forest land management to achieve balance between the ecology and economy of its integrated system and to foster equity among the diverse outcomes of the forest land were assessed with emergy. Emergy was demonstrated to holistically integrated and quantify the interconnections of a coupled nature-human system allowing the goals of ecological balance and outcome equity to be measured quantitatively. Doing so will provide a better understanding of the basis of forest land wealth and the consequences of management decisions.

지목분류체계에 관한 연구 (A Study on Categories of Land Use)

  • 이춘원;김진
    • 지적과 국토정보
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    • 제45권1호
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    • pp.31-43
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    • 2015
  • 과거에는 토지 분류의 목적이 단순히 과세를 위한 기초자료로 이용되는 측면에 그쳤으나, 오늘날에는 과세자료로 제공되는 측면이외에도 행정업무를 비롯한 국토계획, 토지의 개발, 도시정비 등에서는 물론이고 토지의 사법상 거래에서도 중요한 참고자료로 활용되고 있으며, 향후에 그 기능을 더욱 확대할 것으로 예상된다. 지목의 기능을 확대하려면, 수요적인 측면에서 지목이 현실적으로 적용되는 개별법령의 시각에서 지목의 분류를 다시 생각해 볼 필요가 있다. 현실지목과 공부상 지목의 불일치를 해소하기 위해서는 현실적인 토지의 사용현황을 조사하여 공부에 정확히 반영하는 것이 궁극적인 해결방법이지만, 이와 더불어 각종 토지관련 규제법에서 토지에 대한 독자적인 분류체계를 취하는 것을 통일하여 국민의 혼선을 방지하는 것이 필요하다. 또한 현행법상 서로 다른 지목이더라도 행정상 동일한 규제를 한다면, 같은 유형의 지목에 포함시킬 필요가 있다. 본 연구에서 통합지적법상 지목의 분류를 다른 토지 규제 법률과 체계상 정합성을 가지도록 새로운 분류체계를 마련하는 것을 제안하였다.