• Title/Summary/Keyword: urban ecosystem

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Sustainable Fresh Water Resources Management in Northern Kuwait-A Remote Sensing View From Raudatain Basin

  • Saif ud din;Dousari Ahmad AI;Ghadban Abdulnabi AI
    • Proceedings of the KSRS Conference
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    • 2005.10a
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    • pp.153-164
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    • 2005
  • The paper presents time and cost effective remote sensing technology to estimate recharge potential of fresh water shallow aquifers for their sustainable management in arid ecosystem. Precipitation measurement of Raudatain Basin in Kuwait from TRMM data has been made and integrated with geological, geomorphological and hyrological data, to estimate the recharge potential of the basin. The total potential recharge to the area is estimated as 333.964 MCM annually. The initial losses are estimated at $60\%$ of the net precipitation .The net available quantity for recharge is 133.58 MCM. For sustainable management of the ground water resources, recharge wells have been proposed in the higher order streams to augment the Raudatain aquifer in Kuwait. If the available quantity of precipitation can be successfully utilized, it will reduce considerable pressure on desalination, which is leading to increased salinity off the coast in Arabian Gulf.

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Ecological Studies of Fauna in and around Do-rim Urban Streams (도림천 및 주변지역에 서식하는 육상동물상에 관한 생태학적 연구)

  • Lee, Sang-Don
    • Journal of Wetlands Research
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    • v.11 no.3
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    • pp.105-113
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    • 2009
  • Wetland ecosystem is one of the most productive one in nature. Wetland is an areas in which transit between terrestrial and stream ecosystem. This study aims at identifying fanua (birds, mammals, amphibians and reptiles) in urban stream of Dorim. A total of 3 orders, 6 families and 9 species for mammals; 17 families, 30 species of birds; 3 families and 4 species of amphibians and 2 families and 3 species of reptiles were reported. This is a through study for species identification in Dorim steams. This study suggested that various organisms were found around Dorim stream and this study will better serve as a stepping stone for wetland restoration and establishment of biotope where organisms breed and survive.

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Monitoring Survey of Natural Recovery Method at Oncheon Stream (온천천 시범구간의 자연형 복원공법의 Monitoring 조사)

  • Seo, Kyu-Woo;Song, Il-Jun;Kim, Gwang-Seob
    • Journal of Wetlands Research
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    • v.3 no.2
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    • pp.133-142
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    • 2001
  • Growth of cities and an increase in population result in the development-oriented policy, urban streams to lose their natural characteristics and functions by channelization, parking lot construction, and so forth. The streams fall into urban drains, which is the current status of urban streams. Recently, the interest in the stream environment and the ecosystem has been increased, and the efforts have been made to improve the traditional maintenance program for small streams. These efforts lead to the application of the natural recovery systems. This study applied the 240-meter model reach along the Oncheon stream, which locates in Dongrae-gu, Busan city. to analyze the natural recovery system. The efficiency of each system has been analyzed and the future improvements for the systems are presented. The results show that the stream maintenance program should consider the ecological environment. thereby minimizing the environmental effects. When the changes are inevitable, the maintenance program should adopt the methods. which closely simulate the original environmental elements. or are more favorable to the ecosystem.

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The Vegetational Diagnosis for the Ecological Rehabilitation of Stream - In case of the Forest Communities, Soil in Namhan river - (하천의 생태적 복원을 위한 식생학적 연구 - 남한강 육상식물, 토양을 중심으로 -)

  • Myung, Hyun
    • Journal of Environmental Science International
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    • v.18 no.1
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    • pp.113-127
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    • 2009
  • This study was designed to present a river model with an aim at restoring the ecosystem and improving the landscape along the urban rivers on the basin of the Namhan river, a core life channel for the National Capital region. The revelation of botanical status, transition trend and correlation of plants might lead to providing the urban river restoration projects and ecological river formation projects with basic data for a model of ideal aquatic ecology and landscape. The outcomes of this study could be summed up as follows: 1. Communities of Juglans mandshurica, Cornus controversa and Fraxinus mandshurica constitute the main portion of flora at or around uppermost branch streams of the River Namhanis harbored mainly in and around small brooks 2. Typical terrestrial forest communities formed around the River Namhan are composed mainly of Larix leptolepis, Pinus rigida, planned forestation of Pinus koraiensis, Quercus acutissima, Quercus variabilis and Pinus densiflora. 3. The analysis into terrestrial environment of plant communities showed a high content of $P_2O_5$, typical communities found in the artificially disturbed land Finally, it seems also desirable to continue to make every exertion to explore the relationship between fluvial and terrestrial ecologies with a purport of building up a model of natural streams in urban area based on the surveyed factors for plant life, forest communities, soil and landscape and, moreover, on the forecasting for overall influences derived from the relation upon the ecosystem.

A Study on the Usefulness of the Ridge in Open Space and Landscape Planning (녹지 및 경관계획에 있어서 능선의 효용성에 관한 연구)

  • Lee, Won-Young;Choi, Hyung-Seok
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.6 no.5
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    • pp.70-78
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    • 2003
  • From the viewpoint of the importance of the division theory based on topography(pyungsu) derived from the uniqueness in topography, not to mention of the function of ridge in ruban areas, the destroy of ridges should be prevented from the development of hill areas. This study intends to propose the basic concepts and principles to protect the ridge axis with green in open space and landscape planning. The main results are summarized as follows : First, eco-bridge across the ridges will be connected for the purpose of ecosystem restoration. Second, the protection and restoration of green ridge axis can be completed by Green Structure Plan which has principles and standards such as. - layout of development axis and establishment of rules on preservation - the practical use of various preservation methods and the standards suitable to the methods - laying down the standards of restoration according to the height from ground level - the application of zoning such as height district and urban design for preservation Finally, the design of implementation tools must be needed for protection and restoration.

A Study on the Development of Integrated Utilization Considering Multi Functions of Urban Estuarine Area (대도심 하구역 개발과 보전의 융합이용모형 개발 연구 -낙동강 하구역을 중심으로-)

  • Im, Jung-Hyeun;Choi, Jin-Hyu;Kim, Jun-Ho;Yoon, Han-Sam;Ryu, Cheong-Ro
    • Journal of Fisheries and Marine Sciences Education
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    • v.22 no.4
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    • pp.589-603
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    • 2010
  • The purpose of this study is to develop a integrated(fusion) utilization model aimed at maximizing the development/management functions of urban estuarine area and to present an integrated concept by analyzing the existing document and data. The main points of this study are as follows: 1) The integrated utilization model suggested in this paper goes beyond the existing idea of sustainable utilization and conservation, putting an emphasis on rational decision-making in estuary management and peaceful coexistence between human and nature. 2) Policies for utilization/development/conservation/regeneration of urban estuarine area include the establishment of communication system between human and nature and a safety net considering both human and nature, the support for environment-friendly community development and the importance of preserving valuable ecosystem and wetland habitat. 3) Lastly, this study suggested that the major tasks for the fusion utilization model development are the integrated management of estuary areas, the conservation and preservation of wetland ecosystem, proper utilization of estuary's productivity, and the introduction and action plans of the integrated management model including the best way to address contamination and disaster management.

A Study of Activating Urban Square's Ecological Soundness - Focusing on Gyodong Square in the City of Gangneung - (도심광장의 생태적건전성 활성화방안 - 강릉시 교동 광장을 사례로 -)

  • Kim, Ji-Youn;Kang, Seon-Hong;Cho, Tae-Dong
    • Journal of Environmental Science International
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    • v.26 no.7
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    • pp.837-846
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    • 2017
  • This study aimed to investigate the dilapidated Fine View Square located in the city of Gangneung and analyze problems for building it into a sustainable space under an effective management plan. Further to creating an ecological base for restoring the natural circulation, a restorative method for the damaged area, a spatial assignment by the UNESCO's Man and Biosphere Programme (MAB), and an urban ecological park, we not only wanted to provide an environment that is citizen friendly, but also a practical and realizable project to connect with the various methods and programs mentioned above, while utilizing the Ministry of the Environment 's ecosystem conservation fund. In conclusion, we found that it would be possible to contribute to building an urban ecological park the Ministry of Environment proposed while restoring the lost natural circulation in Gyodong Square in the city of Gangneung and ecological soundness of the city along with the reduced heat island effect and the increased biological diversity and Ecological Soundness.

Developing the tidal flat information system using satellite images and GIS

  • Yi, Hi-Il;Shin, Dong-Hyuk;Jo, Myung-Hee;Kim, Hyoung-Sub;Shin, Dong-Ho
    • Proceedings of the KSRS Conference
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    • 2003.11a
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    • pp.1018-1020
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    • 2003
  • The costal area where takes up over 32% in domestic teritory is considered as very importantly because it has not only economic facilities such as harbor and an industrial complex but also recreation facilities. Moreover, the tidal flat area has been used as culture ponds and salt farms because this area is occupied by various oceanic species. Also, the tidal flat area has played an important role to purify ocean pollution and maintain an ecosystem. However, the costal ecosystem has seriously threatened by domestic reclamation projects and a large-scale tide embankment during recent 10 years in Korea. This serious problem results in loosing 34%(810$km^2$) of the entire domestic costal area. In this paper, the micro-landform in the tidal flat area, which is called as Garolim bay in Korea, is classified by using Landsat TM images also verified through a filed report. Through the result of this, the tidal flat area is expected to manage efficiently especially through analyzing sediment environment and characteristic of grain size by using satellite images.

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Comparing a Perspective on the Leaf Burst Timing and Leaf Growth Performance of Major Plants observed in Urban Forests (도시녹지 내 주요 식물상의 개엽시기 및 잎의 성장 특성 비교)

  • Jang, Gab-Sue
    • Journal of the Korean Society of Environmental Restoration Technology
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    • v.15 no.2
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    • pp.127-136
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    • 2012
  • Global climate change and urban heat island have been the main factors which changed leaf burst timing and leaf growth performance in urban forests. Therefore, the ecosystem in urban forests were modified and the types and composition of wildlives, living in the urban forests, were desperately changed due to the urban heat island. This study was done to identify phenological phenomena appeared in urban forests due to the urban climate change by comparing the morphological changes of leaves due to the change of temperature in Spring. The study focused on nine urban forests distributed in Daegu city, where weekly temperature and the morphological changes of the plants were mainly observed. Urban forests had different temperature depending on where each was located in the urban area. The difference of temperature in forests in and outside the urban area was verified by SPSS (Statistical Package for the Social Sciences), which divided the urban forests into about three groups; the one located outside the city, another group located in the middle of the city, and the other located close to the outside forests. The forests located in the middle of the city were showing the earlier leaf burst timing and leaf growth performance, while forests, distributed outside the city, were showing relatively late leaf burst timing and leaf performance.