• 한국조경학회지
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• 제27권3호
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• pp.1-17
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• 1999

The purpose of this study is to evaluate the creation techniques of artificial wetland, one of biotopes developed to promote biodiversity in urban areas, and to look for improvement steps. Specifically, artificial wetland creation techniques were categorized into living environment and living creature classification. Being living conditions for creations, habitat environment was reviewed with a focus on water and soil environments. Living creatures were classified into plants, insects, fish, and birds. The evaluation of creation techniques was done in post-construction evaluation while considering the creation of habitats for living creatures. Intervention by users, changes in living environment and living species, and relevance of creation techniques were reviewed. Key results of this study are as follows. (1) Water environment for the living environment of creatures provides a suitable environment conditions for the living of creatures through a process easing the use of piped water. Various water depths and embankment appear to have a positive impact on the living of aquatic life. In particular, embankment covered in soil naturally played an important role as a place for the activities of aquatic insects and young fish as well as the growth of aquatic plants. (2) Various aquatic and ground plants to promote insect-diversity, shallow water, and old-tree logs had contributed greatly in increasing the types and number of insects. Aquatic insects. Aquatic insects were seen much particularly in areas where aquatic plants are rich but water is shallow than any other areas. (3) A space piled with stone to provide habitats for fish was not much used. However, it was observed that fish used embankment built with natural stones and embankment using logs in areas where water is deep. In addition, it was confirmed that 1,500 fish that had been released propagated using various depths and places for birth. (4) It was analyzed that techniques (creation of island, log setting, and creation of man-made bird nests) to provide habitats and to attract birds are not serving their roles. In such a case, it is believed that species had not increased due to the smallness as well as isolated features of the area. Based on theoretical review, they are judged to be areas that are likely to be used when a greater variety of birds is introduced. It is judged that attracting and keeping more birds at the site, such spaces need to be linked systematically in the future in terms of building eco-network while ensuring an adequate living areas. (5) In the study areas, users intervened greatly. As a result, a blockage was created preventing the normal growth of plants and non-indigenous plants were introduced. In order to limit the intervention by users, setting enough buffer zones, and environment education programs were urgently required. D/H=1>Hyangkyo> houses on the river>temples>lecture halls. D/H ratio of the backside areas is as follows. D/H=1>Hyangkyo>houses on the river>lecture halls. 4. Inner garden were planted deciduous than evergreen trees with Lagerstroemia indica. Enclosed dominant trees were planted by Pinus densiflora, Querces seuata. construct GEM strain, and examined for the expression and functional stability in microcosms.

• 한국조경학회지
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• 제36권6호
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• pp.43-54
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• 2009

본 연구는 새롭게 조성되는 도시의 물순환체계를 구축하고, 도시화로 말미암아 증가하는 유출량을 분산 저류함은 물론, 생물다양성을 증진시킬 수 있는 습지의 조성입지와 면적을 확보하는 것에 중점을 두었다. 습지조성 입지선정을 위하여 유역분석에서부터 평가항목 선정, 가중치 산출, 주제도 작성, 종합 등 일련의 과정을 모형으로 정립하였다. 개발된 모형은 수도권에 입지해 있는 위례 신도시 개발예정지역에 적용함으로써 모형의 실행가능성과 한계를 검토하였다. 적용 결과, 유역분석단계 에서는 대상지가 13개의 소유역으로 구분되며, 개발대상지가 포함되는 유역들의 유입량은 $3,020,765m^3$인 것으로 나타났다. 개발 전 후의 유출량을 비교하면 각각 $1,901,969m^3$, $1,970,735{\sim}2,039,502m^3$로써 개발지역에서 확보해야 할 총 저류량은 $68,766{\sim}137,533m^3$로 산출되었다. 습지조성 입지선정단계에서는 각각의 주제도를 중첩한 결과, 13개 소유역별로 습지조성 우선지역이 차등적으로 분류되었다. 유출량을 저류할 수 있는 습지의 입지와 면적을 도출한 결과, 저류형 습지와 하천형 습지, 연못형 습지 등 다양한 유형의 습지조성은 물론 이들의 유기적 연계가 가능한 것으로 판단되었다. 이는 도시 전체의 물순환체계 계획의 기본골격을 제공함으로써 녹지공간과의 통합을 통해 도시생태 네트워크 계획 수립과 같은 공간계획단계에 유용하게 활용될 수 있을 것으로 판단되었다. 그러나 본 연구는 토지이용계획 이전 단계에서 도시화로 인해 예상되는 잠재적인 유출량을 기준으로 습지의 입지와 면적을 산정함에 따라 정확한 저류량의 산정을 위해서는 토지이용계획 이후 환류(feedback)과정이 요구되었으며, 습지의 유형이나 입지적 특성에 따라서 저류량 등 저류능력이 달라질 수 있음에도 불구하고 문헌에서 고찰되는 일반적인 습지 저류량을 모든 습지에 동일하게 적용했다는 점은 본 연구의 한계라 할 수 있다.