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ŠUMARSKI LIST 9-10/2018 str. 42     <-- 42 -->        PDF

area (m²) per capita. The optimum value suggested by the WHO* is from 10 to 15 m² of UGS per capita, while the minimum is 9 m² (Karayannis, 2014). In the settlement of Zadar, 13 statistical circles had a smaller than optimum value (15 m²) specified by the WHO. They account for 19,319 inhabitants, or 27.03% of the total city population. Most of these statistical circles are located in the central, older part of the city, which is characterized by dense urban infrastructure. In contrast, some statistical circles recorded values greater than 6,000 m² of green space per capita (Fig. 4).
According to this measure, each inhabitant of Zadar has about 360 m² of green areas. This large value is the result of the administrative border shape, because the NE part consists mostly of abandoned and derelict green and agricultural areas. If we exclude these classes because they do not contribute to the environmental sustainability and identity of the city and along with their poor network connections they cannot be considered as the part of the urban city core, on the each inhabitant of Zadar comes approximately 114 m² of green space. The urban forest of Musapstan is included in this value.
The remaining six measures taken into account while calculating the UGS accessibility indicator referred to the UGS accessibility on the basis of their specific functional levels. According to the parameter of area (m2), a classification of UGS functional levels was made (Van Herzele and Wiedemann, 2003). Access points were determined for each element of the specific functional level and accessibility analysis was performed. Most of the higher UGS functional levels were located outside the inner city (Fig. 5).
It is evident that the highest accessibility values were recorded for the functional levels of the urban forest and residential green. Just under 6% of the population does not have an accessible urban forest within a distance of 5,000 m (Fig. 5). This was anticipated, because this class has the biggest influence zone (5,000 m) and the urban forest of Musapstan is located within the settlement of Zadar. Only 9% of the population does not have access to the functional level of a residential green (Fig. 5). The accessibility of the lowest and highest UGS functional levels are extremely good. The lowest accessibility values were recorded for the functional levels of neighbourhood and city greens, for which 50% of the population have no access. The functional levels of the quarter and district green fared somewhat better results (Fig. 5). The derived six variables of accessibility, for each UGS functional level, were used as objective