Nowadays, developing green spaces are on rise due to the fact that the population, urban structures and human needs for social, physical and emotional balance are also increasing. In Iran, paying attention to green spaces has risen along with the appearance of industries around the cities. In Isfahan city, green space planning has received significant attention from years ago which have been manifested through complexes such as Char Bagh, Bagh Karan, Hezar Jerib garden, Chelsorun garden, etc. However, in spite of the high amount of the green space per capita, the need for paying attention to these places has risen due to the factories and industrial units causing the environmental pollutions. Moreover, parks and green spaces spatial distribution in urban zones has not been carried out fairly; therefore, unequal distribution in different zones can be seen vividly. Thus, the present study has analyzed the developing indices level of parks and green space in different eleven zones of Isfahan as well as recognizing the shortages and future planning for these areas. This study has been carried out on a "comparative, descriptive and analytical" base. The statistical population of the study includes different eleven urban zones in Isfahan, which have been analyzed using 7 related indices concerning the parks and green spaces development. The primary data was gathered from the Isfahan Parks and Green Spaces Organization website, using the present maps. Combining 10 major indices, final indices of the study were extracted and were categorized in seven groups. At the next stage, the indices were divided into two groups: "practical (physical-humanistic)" and "elegant-biological". Analyzing their lack of balance using the green space index led to the final index for the green spaces development in Isfahan. The practical steps of this model contain: 1) spatial distribution of greenery development indices Equation presented) green space insufficiency index Equation presented) green space development index Equation presented Finally, presenting a regression model, the priorities for the green spaces in different zones and the effective indices of green spaces development were recognized. Software such as SPSS and Arc View GIS were utilized in this study to analyze the subject more precisely. The utilized indices in this study include primary indices, practical indices (physical-humanistic), elegant-biological indices and the final index of green space development. The primary indices have been established using the variables such as population, area, green spaces measurement, seasonal and permanent flower planting, and the space under tree planting, urban and local parks' area, the developed green spaces in different zones in 2006, and the number of the trees in different parks. Practical indices have been constituted of "the proportion of green space to the zone population in 2006" index and "the proportion of green space to the zone area". The elegant-biological indices involve the five following indices: 1. The index of beautifying green space: this index has been measured from the proportion of permanent and seasonal lawns spaces to the total measurement of the zones. 2. The index of green space sustainability: the index of green space sustainability has been measured through dividing the tree planted spaces to the total green spaces area of each zone. 3. The index of recreation spaces in parks and urban green spaces: it has been calculated from measuring the proportion of urban and local parks area to the green space of each zone. 4. The index of green space development: the proportion of the developed green spaces in 2006 to the existing green space of each zone constitutes the above mentioned index. 5. The index of tree density in a level unit (square meter): dividing the total number of the trees to the urban parks area will lead to this index. The findings show that the mean of the practical development index in our studied zone is 0.33 and the highest amount is related to the zone number 6 with an amount of 0.64, and the least is for the zone number 1 with an amount of 0.15. The index of practical green space development is higher than the total mean in 54/5 % of these zones including zone number 2, 4, 5, 6, 8, 9; while this index is lower in 45/5 % of these zones including zone number 1, 3, 7, 10, 11. Regarding the index of practical development, zones number 6, 9, 4 are located among the highest levels with the indices of 0/64, 0/50 and 0/45 respectively. On the other hand, zones number 10, 3 and 1 are among the lowest ones with the indices of 0/16, 0/15 respectively. Zones number 8, 5, 2, 11, 7 own the fourth to eighth level with the indices of 0/41, 0/40, 0/37, 0/25, 0/22 respectively. The mean of elegant-biological green space development index in Isfahan eleven zones is 0/35. the index of elegant-biological developments in Isfahan green spaces is higher than the total mean in 63/6 % of the zones including 4, 5, 7, 8, 9, 10, 11. This index is lower than the total mean in 27/3 % of the zones including 1, 2, and 6; while this amount is equal to the total mean for zone number 3. Zones number 4, 8, 5 and 9 are among the four highest levels with the indices of 0/46, 0/43 and 0/42 respectively; while zones number 6, 2 and 1 are the last ones with the indices of 0/30, 0/22 and 0/18. Zones number 11, 10, 7 and 3 are the fifth to eighth ranks respectively. The final index of green space development has been acquired from combining practical development index and the elegant-biological development index using the average level of them. According to the findings, the final green space development mean in Isfahan eleven zones is 0/35, with the highest amount of 0/47 for zone number 6 and the lowest amount of 0/16 for zone number 1. The final index of green space development in Isfahan city is higher than the mean in some zones including number 4, 5, 6, 8, 9; while it is lower in the other zones. Therefore, zones number 6, 9 and 4 were the first three ones; while zones 10, 3 and 1 are the lowest ones ranking amongst the eleven zones respectively. In our present research, standard deviation and their mean has been utilized in order to categorize the indices. Therefore, reducing the standard deviation of a mean and increasing the standard deviation of every index has resulted in the green space development level in different zones. According to the measurements carried out in this research, zones number 6, 9, 4 and 8 are considered high-green on the basis of their practical developments. Zones number 5, 2 and 11 (27/27 percent of the zones) stands the second level and are considered as medium-green. Zones number 7, 10, 3 and 1 (36/36 % of the zones) stand the third level and are considered as low-green.Zones number 4, 8, 9, 5 and 11 are considered high-green on the basis of their elegant-biological development. Zones number 10, 7, 3 and 6 (36/36 % of the zones) stand the second level, considered as medium-green. Finally, zones number 1 and 2 (18/18 % of the zones stand the third level, considered as low-green. According to the findings, zones number 6, 9, 4, 8 and 5 are high-green on the basis of their green space development. Zones number 11 and 12 (18/18 5 of the zones stand the second level considered as medium-green. Zones number 7, 10, 3 and 1 (36/36 % of the zones) stand the third level considered as low-green. The green spaces priority in Isfahan has been measured and analyzed using the statistical software such as SPSS and the multi-variant regression model on the basis of seven indices sores and final index of green space development (GSDI). In this study, the final index score has been considered as the dependent variable, while the other seven indices scores are considered as independent scores. According to the calculation, the measured R 2 was equal to 1 which shows that 99 % of the green spaces accessibility is on the basis of the present indices in our study. Investigating the significance level of the indices implied that regression and the linear relationship between the variables are significant (Sig.: 0/000). Regression equation for predicting the priorities in green space development in Isfahan has been obtained as follow: Y= -0/219-0/012 II+ 0/003 I 2 + 0/714 I 3 + 0/184 1 4 + 0/215 I 5 + 0/405 I 6 + 0/0961 I 7 Analyzing β shows that the indices number 1, 2, 4, 3, 7, 5, and 6 are more in predicting the green spaces development in Isfahan. Since single-unit change in standard deviation of studied indices causes some change in standard deviation of GSDI to the amount of 0/810, 0/737, 0/320, 0/320, 0/297, 0/292, 0/291, and 0/289. Therefore, considering the regression model, it could be stated that the priorities for Isfahan GSDI include:1) proportion of green space to population, 2) proportion of green space to zone dimension, 3) green space sustainability, 4) beautifying the green space, 5) tree density in each level unit, 6) parks and recreation spaces index, 7) GSDI. In order to decrease the differences between the urban zones, the above mentioned indices are suggested according to high-green, medium-green and low-green development of green spaces. Therefore, balancing the parks and green spaces are carried out hierarchically and on the basis of spatial order. Otherwise, not only the differences are increased, but also the spatial inequality and imbalance are increased and the notion of social justice will be doubted.
