지속가능한 토지이용을 위한 에머지생태지도 개발과 활용에 관한 연구

Abstract

Land planning that conducted by optimum procedure for trading off, between the conserved and developed areas may diminish the natural environment but may also lead to possible sustainability of land use. Environmental Conservation Value Assessment Map (ECVAM) and Ecological Map (ELM) have been used in Korea. Although two maps use the same standards and could be a universal standard in Korea limitations may exist in accessing some specific areas such as tideland. The two maps stated above concentrated mainly on the assessment of biodiversity and ignores the aspect of urban ecosystems. The Biotop Conservation Map (BVM) been made for covering the above limitation. However BCM has no uniform standard and assessment. An integrative map was newly designed to take advantages of the three maps. Emergy methodology was utilzed to evaluated advantages of the indices in difference maps. Emergy values were efficient in presenting to the indices such as renewability, environmental loading ratio, nonrenewable empower intensity, landscape development intensity, etc., according to land use. Three emergy indices were selected from the overall list of quantitative emergy indices, by evaluating the energy relationships with the variables for describing indicators. The chosen indices were suitable for characterizing the variables and were consequently efficient in explaining the indicators for determination of conservation areas. After evaluation of three emergy values, new map, which called Ecological Emergy Indicator (EEI), was constructed by using ArcGIS and the Ecological Emergy Map (EEMI). The proposed map was applied to relation data collected in Busan and was efficient in classifying specific land use types. For instance, the tideland was classified as while forest and planted areas was regarded as second class. The ecological integrative map was more suitable in presenting the ecosystem quality, since the map uses all levels of energy in an integrative manner. The map was also universal and could be used as a standard in Korea. Consequently the map contribute to effective management and sustainability of land.