为了便于公园规划改造、植物配置、因土种植和土壤改良提供依据,我们调查了上海市属、区属21个主要公园的土壤酸碱度,初步剖析如下。一、方法:上海的公园土壤,土体扰动变异多,情况复杂。因此,我们首先了解每个公园地片土壤的演变过程,并按根系主要分布层中有否建筑垃圾夹杂层、植被类型、生长状况以及其它差异划出小 In order to facilitate planning and reconstruction of the park, plant configuration, soil preparation and soil improvement to provide the basis for our investigation of the genus, belonging to 21 major parks in Shanghai soil pH, preliminary analysis is as follows. First, the method: the Shanghai park soil, soil disturbance variation, the situation is complicated. Therefore, we first understand the evolution of the soils in each of the patches of the park, and draw small or no trash inclusions in the main distribution layer of the root, vegetation type, growth status and other differences