공동주택단지내 조경수목의 생장과 피음시간과의 관계를 파악하기 위하여 과천주공아파트 2단지 내의 조경수목 4종을 대상으로 현재의 규격과 식재위치를 조사하여 개체별 그림자시간을 분석하고 피음시간과 수목규격을 단순회귀분석하였다. 전체적으로 R2값이 낮아 두 변수간의 상관성은 설명력이 약하다 하겠으며, 도출된 회귀방정식도 일반화 할 수는 없는 것으로 판단되었다. 즉, 본 연구대상지내에서 조경수목의 생장과 피음시간과의 상관관계가 낮아 대상지내 조겨수목의 생장에 있어서 피음시간은 타 환경여인보다 상대적 중요도가 낮은 것으로 추정되었다. 다만, 전반적으로 스츠로브잣나무는 부(-)의 상관관계를, 단풍나무와 백목련은 정(+)의 상관관계를 보여 음양수의 특성이 나타난 것으로 추정되었다. 또한, 수종별로 통계적으로 유의성이 있는 경우는, 단풍나무의 경우 근원직경 및 수관폭, 백목련의 경우 수관폭과 피음시간과의 관계로서 상관계수 0.4 미만의 낮은 상관성을 보였다.

The purpose of this study was to provide basic data of the growth characteristics of the landscape trees for better landscape planting design, construction and maintenance through the prediction of landscape change as time passes by the analysis of survival rate, distribution patterns & increment percent of tree height, width, stem diameter (breast or surface) of widely used six tree species in Seongnam-si Eunhang-jugong apartment housing areas (8 years have passed after landscape planting work). The main results can be summarized as follows: The tree survival rate of Pinus parviflora was the highest rate 89.2% than any other species, but Acer buergerianum showed the lowest survival rate as that of it 35.0%, & that of Picea abies 70.5 %, Metasequoia glyptostroboides 71.6%, Magnolia denudata 38.9%, Acer palmatum was 71.7%. As a whole, the tree survival rate of coniferous trees were relatively high. The tree height increment percent of the deciduous species were relatively high. And that of Metasequoia glyptostroboides was the highest rate 11.61 % than any other species, but that of Magnolia denudata was the lowest rate 5.59% than any other species. According to this results, the increment percent of trees in this apartment areas were comparatively lower than that of each related species planted in nursery area. And this results would be considered when landscape experts do landscape planting design, construction & maintenance. The distribution patterns of present tree size showed a Normal Distribution like any other biological features.

Recycling is receiving increasing social attention today as our nation begins to grapple with the significant problems caused by huge amount of municipal solid waste. The topic of recycling is not simple but extremely complicated. This study attempts to provide basic data and policy options for expanding and improving separated collection and recycling in public residential areas, through three case study of apartment housing areas in Taegu Metropolitan City. The main results of this study are summarized as follows. For the significant period of time, all three case areas had in common the extreme difficulty in establishing and operating the system of connecting public participation, collection and storage, transportation, and actual recycling of materials because of a variety of problems involved in this process. Both amounts of and prices for collected materials fluctuated considerably over time mainly due to monthly changes in recyclable home materials and the dynamic nature of recycling markets. Public questionnaire survey revealed the very high level of participation in separated collection, not only because almost all respondents well understood the necessity and importance of recycling, but because they also knew how to do separated collection. But overall activities were rated low and most respondents suggested the enlargement of public participation, the improvement of collection and storage facilities, and collection transportation networks. In particular, most respondents had little experience of using recycled products and used mainly reproduced soap and bathroom tissue. Furthermore, they were considerably unsatisfied with low variety and quality of recycled products, their high prices and low availability in the market. Finally potential policy options and activities for improving separated collection and recycling are suggested.