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The research illuminate the relationship between soil environment and tree vitality within urban green park areas and analyze soil environment's impact on tree vitality in each space, designating soil hardness, soil moisture degree, soil PH, K, Na, Ma, Ca quantity as independent factors after performing Pearson relation analysis. Multiple return analysis was practiced in using the analysis data. The findings are as following. The soil hardness of entrance area and facility area showing much use density is higher than that of forest area in soil environment, which means that the interference and utility pressure of soil users have effect on tree vitality. The soil factors of entrance area and facility area have been found as Mg quantity, soil hardness, and Ca quantity, while the soil factors of forest area could not be found without statistical meaningfulness. Therefore it means that in the entrance area and facility area the increasing soil hardness resulting from mineral eruption and soil user's pressure has effect on tree vitality.
The purpose of this study is suggest to restoration model of Pinus thunbergii in Saha-gu, Busan. The result of this study is summarized as follows. As the results of this study, vegetation restoration model is presented by separating community planting and edge planting. In community planting, as a group of canopy, there are 6 species; Pinus thunbergii, Quercus acutissima, Quercus dentata, Quercus serrata, Quercus alienna, Quercus variabilis. As a group of understory, there are 5 species; Platycarya strobilacea, Prunus sargentii, Styrax japonica, Eurya japonica, Morus bombycis. Also as a group of shrub, there were 15 kinds of species; Ulmus pavifolia, Ulmus davidiana, Lindera obtusiloba, Elaeagnus macrophylla, Mallotus japonicus, Ligustrum obtusifolium, Sorbus alnifolia, Rhus trichocarpa, Zanthoxylum schinifolium, Rosa wichuraiana, Rhus chinensis, Viburnum erosum, Rhododendron mucronulatum, Rhododendron yedoense, Indigofera pseudotinctoria. And as a group of edge vegetation, there were 10 kinds of species; Japanese Angelica, Symplocos chinensis, Pittosporum tobira, Lespedeza maximowiczii, Lespedeza bicolor, Rubus coreanus, Rubus idaeus, Vitis thunbergii, Ampelopsis brevipedunculata, Rosa multiflora. Vegetation restoration models of Pinus thunbergii community were calculated the units 400m2 for the average populations of the woody layer is 24 in canopy layer, 35 in understory layer, 410 in shrub layer, 34% herbaceous layer ground cover. And the average of breast-high area and canopy area is 10,852cm2 in canopy layer, in understory layer 1,546cm2, in shrub layer 1,158,660cm2. The shortest distance between trees is calculated as 2.0m in canopy layer, 1.9m in understory layer.