• Title/Summary/Keyword: Environmental carrying capacity

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GIS based Carrying Capacity Assessment for National Parks

  • Lee, Woo-Kyun;Son, Min-Ho;Kwak, Doo-Ahn
    • 한국지형공간정보학회:학술대회논문집
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    • 2005.08a
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    • pp.21-25
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    • 2005
  • A GIS application for assessment of carrying capacity for national parks was developed and presented in this study. Three criteria--ecological factors, facilities, and institutions--were employed as determining factors for assessing the carrying capacity. Using the GIS-based approach, the site-specific carrying capacity for the Chi-Ri National Park was assessed and a carrying capacity map was prepared. This carrying capacity map can be helpful in making policies for decentralizing visitors and keeping the park environmentally stable.

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Sustainable Land Use within a Limit of Environmental Carrying Capacity in Metropolitan Area, Korea (지속가능한 발전을 위한 환경용량의 산정과 토지이용형태 연구 - 수도권지역을 중심으로 -)

  • Moon, Tae-Hoon
    • Korean System Dynamics Review
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    • v.8 no.2
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    • pp.51-82
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    • 2007
  • The purpose of this paper is exploring changes in land use pattern when considering environmental carrying capacity. A sustainable development requires a society to define sustainability constraints, environmental carrying capacity. Environmental carrying capacity can be defined as a level of human activity a region can sustain at a desired level of quality of environment. This concept of environmental carrying capacity can be applied to land use to explore sustainable land use pattern. Since land use pattern can affect environment in an important way, exploring sustainable land use pattern within the limit of environmental carrying capacity can suggest useful implications for a sustainable regional management and planning. For this purpose, this paper built the environmental carrying capacity land use model and applied it to the Metropolitan Area, Korea. System dynamics modeling methods was used to build the model. The model developed in this paper consisted of 6sectors; population, housing, industry, land, environment, and traffic sector. The model limits its main focus on the NO2 level as an indicator of quality of environment in Metropolitan Area. Box model was translated into system dynamics model and combined to urban dynamics model to estimate NO2 level, the maximum number of population, industry structure, housing and maximum amount of land use for industrial, housing, and green space that can sustain desirable NO2 level. Metropolitan area was divided into 16 areas and the model was applied to each area. Since NO2 is flowing in and out from each area, model was built to allow this transboundering nature of air pollutants. Based on the model estimation, several policy implications for a sustainable land use pattern was discussed.

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Ecotourism Carrying Capacity and the Potentiality of the Safari Park of Bangladesh

  • Masum, Kazi Mohammad;Al Mamun, Abdullah;Rahman, Zahed Mohammad Malekur;Rahman, Md. Motlubur;Newaz, Md. Shah;Redowan, Mohammad
    • Journal of Forest and Environmental Science
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    • v.29 no.4
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    • pp.292-299
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    • 2013
  • The study was undertaken to assess the tourist's carrying capacity and to explore ecotourism potential of Bangabandhu Sheikh Mujib Safari Park, the only safari park of Bangladesh. Carrying capacity was assessed both from physical and social aspect. On the other hand, 250 visitors were interviewed with semi structured questionnaire for ecotourism prospect evaluation along with some secondary data. The total daily-allowed visit was 17,300 with rotation coefficient of 3.46. Maximum daily average numbers of tourists were relatively below the physical carrying capacity of the Park (5,000). The social carrying capacity was 4.38 persons per day. As there are different categories of visitors, their choice of encounters and number of expected encounters also varied. Each year, the total tourist's number varied significantly ($p{\leq}0.05$). That proved the safari park had immense tourist prospect. 85 percent visitors were from lower and middle class family as entrance fees and other fees inside were very cheap in relation to other private amusement place. The ecological perspective of the park will remain unaltered if the carrying capacities of the area are followed with sustainability. Therefore, it is the proper time for taking appropriate decision.

A Evaluation and Planning Method of Ecological Sustainability of Residential Development Based on the Concept of Environmental Carrying Capacity (환경수용능력개념에 기초한 주거단지의 생태적 지속가능성 평가 및 계획기법)

  • Lee, Byeongho
    • KIEAE Journal
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    • v.12 no.2
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    • pp.3-14
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    • 2012
  • A sustainable evaluation and planning method shall have an integrative methodology for analysis of interrelationship among environmental resource uses and natural conditions during the planning process. However, there are few methods for understanding or achieving sustainable planning in residential development projects for most planner/architects. Therefore, the purpose of this research is to investigate theories of the concept of environmental carrying capacity based on the ecological view, to propose a sustainable planning method for evaluation and planning of environmental sustainability in residential development projects, to analyze interrelationship of selected environmental resources to represent an environmental carrying capacity for a residential development project based on the proposed sustainable planning method. Finally, through the case studies of a high-density housing project located near Seoul Metropolitan area, the existing case and a sustainable case were analysed by the proposed method.

A Study on the Development Limit of Cheongju Downtown based on Environmental Carrying Capacity (환경용량을 만족하는 청주시 도심지역의 개발한계 분석)

  • Lee, Seung-Chul;Ha, Sung-Ryong
    • Journal of Environmental Impact Assessment
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    • v.18 no.1
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    • pp.1-9
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    • 2009
  • Even though the center of Cheongju city needs redevelopment because of a doughnut phenomenon, it has to be permitted within the environmental carrying capacity like a target water quality proposed on the Total maximum daily loads(TMDL) of Musim and Miho river watersheds. The aim of in this study is to identify the limit of redeveloping Cheongju downtown after analyzing its environmental carrying capacity using QUAL2E model. As a result of modeling various scenarios, the water quality of Musin river was shown that $BOD_5$ is 2.3mg/L which is the target water quality in the double of existing development plan of the Cheongju downtown. The water quality of Miho river was $BOD_5$ 3.97mg/L which is less than the target water quality of Miho B watershed in the same condition. Therefore, this means that the limit of redevelopment within the environmental carrying capacity of cheongju downtown was estimated to be the double of existing development plan.

Application of Ecological Indicator to Sustainable Use of Oyster Culture Grounds in GeojeHansan Bay, Korea (거제한산만 굴양식장의 지속적 이용을 위한 생태지표의 적용)

  • Cho, Yoon-Sik;Hong, Sok-Jin;Park, Sung-Eun;Jung, Rae-Hong;Lee, Won-Chan;Lee, Suk-Mo
    • Journal of the Korean Society of Marine Environment & Safety
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    • v.16 no.1
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    • pp.21-29
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    • 2010
  • The concept of carrying capacity for bivalve culture of an area can be classified into four hierarchical categories, according to their level of complexity and scope, such as physical, production, ecological and social carrying capacity. Most scientific efforts to date have been directed towards modelling production carrying capacity and some of the resultant models have been used successfully. But, the modelling of ecological carrying capacity is still in its infancy, because it should consider the whole ecosystem and all culture activities. A more holistic approach is needed to determine the influence of bivalve aquaculture on the environment and ecological carrying capacity. As an alternative, we can use a set of ecological indicators which can show the environmental performance of bivalve farms and assess ecological carrying capacity. Clearance efficiency and filtration pressure indicators show the value of 0.331 and 0.203, respectively, and these indicators suggest that the present level of culture in GeojeHansan Bay is above the ecological carrying capacity of 0.05. Consequently, these indicators can provide a guidance on the present level of culture in regard to production and ecological carrying capacity in GeojeHansan Bay.

A Study on the Environmental Carrying Capacity Assessment of Chongju City (도시 환경용량평가에 관한 연구 -청주시를 사례로-)

  • Lim, Jae-Ho;Lee, Jong-Ho
    • Journal of Environmental Impact Assessment
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    • v.11 no.1
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    • pp.25-36
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    • 2002
  • The purpose of this study is to assess the environmental carrying capacity of Chongju City for the environmental management and the urban growth management. The urban environmental carrying capacity assessment of the city by the index of ecological footprint(EF), shows that the ecosystem of the city has been overloaded and most of the deficiencies has come from outside of the city. The EF index, the area of land per capita required for production and consumption in the city, was 1.731 ha per capita in 1989 and 1.901 ha per capita in 1999. On the other side, the ecologically productive land is 0.0175 ha per capita. It means that every citizen owes 1.88 ha per capita to the ecosystem in 1999. The land consumption of the city has increased by 0.1705 ha per capita during the last 10 years. The capacity of infrastructure and the service supply estimated by the Onishi model does not exceed the demand of the city in 1999. But the rapidly increasing population and fast urban growth need the expansion of the capacity. The water supply capacity of the city appears to be sufficient in 1999, but the water supply demand will increase in the future. The capacity of sewage treatment facilities seems to be sufficient, but the higher level of sewage treatment facilities should be adopted for the improvement of water quality as the generation of sewage will increase and its characteristics will also make the wastewater treatment difficult. Due to the decrease of solid waste generated, the land fill capacity for solid waste disposal is not insufficient at present, but the capacity will be saturated in the near future. Therefore, the scientific management system of solid wastes should be introduced. The air quality of the city meets both the national air quality standard and WHO recommendation standard, but the strong regulation and control of automobile emission gas such as CO, $CO_2$, NOx and HC is required for clean air.

Environmental Impact and Allowable Density Using the Rural Residential Density Matrix (주거밀도모형을 이용한 환경영향분석과 수용능력 산출)

  • Kim, Myungjin
    • Journal of Environmental Impact Assessment
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    • v.12 no.3
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    • pp.151-160
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    • 2003
  • Analysis of carrying capacity and site suitability by the systematic application of environmental information an provide a basis for implementing environmentally sensitive and sustainable resource development policies. Based on the availability of public services and environmental and site-specific constraints, a Rural Residential Density Matrix was applied in Santa Cruz County, California, USA to assess the development potential of rural land parcels since 1980. In one case, the Matrix was applied to calculate the allowable development density on a site in Lompico planned for use as a Buddhist retreat center. These calculations revealed higher environmental sensitivity and lower carrying capacity than projected in the proposed plan. Under the constraints of the county's minimum acreage policies and insufficient developable land, the developer cancelled the proposed plan. This example suggests that application of the Matrix at the concept development stage would increase the effectiveness of the prior environmental review and environmental impact assessment (EIA) system in Korea.

Estimation of Survivorship and Population Dynamics of White-fronted Geese (Anser albifrons) in Junam Reservoir, Korea (주남저수지에 도래하는 쇠기러기의 PVA에 의한 생존확률 추정 연구)

  • Park, Ji-Eun;Lee, Sang-Don
    • Journal of Environmental Impact Assessment
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    • v.18 no.5
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    • pp.293-299
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    • 2009
  • Wintering migratory species of white-fronted geese (Anser albifrons) are common visitor in South Korea, and this study examined the survivorship of white-fronted geese in the Junam Reservoir with the application of Population Viability Analysis (PVA) technique. In Junam PVA analysis was done for the next 50 years using factors of breeding population, sex ratios, survivorship in the VORTEX program. As a result white-fronted geese will reach to carrying capacity within 40 years, and population will reach to carrying capacity later when it becomes smaller. Also with a large initial population white-fronted geese will reach to carrying capacity earlier. In conclusion, for the next 50 years the white-fronted geese are expected to a long-term survival with stable condition with survivorship (0.03) and extinction rate (0.0).

The Relationship between the Load Carrying Capacity and Transformed Impact Factor of Highway Bridge (교량의 공용내하력과 환산충격계수 관계 연구)

  • Chai, Won-Kyu;Lee, Myeong-Gu
    • Journal of the Korean Society of Safety
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    • v.27 no.6
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    • pp.138-143
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    • 2012
  • In this thesis, the relationship between the load carrying capacity and the transformed impact factor of the highway bridges were studied. The bridges are classified according to superstructures type. The result of the comparison between the load carrying capacity and the transformed impact factor, if the load capacity ratio of 0.57, the transformed impact factor was less in order of RC T-beam bridge, RC slab bridge, PC beam bridge, I-beam bridge. By the regression analysis on these results, the empirical formulae to predict the the load carrying capacity of bridge were suggested.