Analysis of the Spatial Distribution of Green Space in the Zone One of Tehran with an Emphasis on Environmental Sustainability

The main objective of this study is to investigate the spatial distribution of green space in the zone one of Tehran toward environmental sustainability. The research method applied contains both descriptive and analytical methods. The preliminary data obtained through library research and related infrastructure and by taking advantage of GIS, Mathematical and statistical methods available, such as: technique Williamson, entropy index, measuring the level of concentration, Lorenz curve factor and factor spatial distribution, concentration and balance Space of green space area to assess the environmental review and SWOT model are used. The results show that the population of 439467 people, according to the region of 3.91 square meters per capita green space and its distribution is uneven in parts of 10 children. Area 6 and 10 with the highest inequality index and entropy, with per capita 20.88 and 9.8 square meters and having 38 and 37 parks and gardens in the best conditions And Area 1 and 8 with the lowest inequality index and entropy, with per capita 1.5 and 2.12 and having 7 and 9 parks and gardens are in the worst condition And based on the statistical methods used, the green space of the spatial distribution is unbalanced. In the 60s and 70s tend to be higher in the northern areas of construction and about 45 percent of the region's orchards have been destroyed in these years And the greatest destruction in area 2. SWOT shows the results of the rating in the evaluation of internal factors of 2.3 and 2.1 is the matrix of external factors Reflecting the adverse conditions in regional development and the elimination of a potential environmental. This means that weaknesses than strengths, opportunities, and threats and continue this process will eliminate the prevailing environmental conditions.