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机构地区:[1]汕头市园林生态科学研究所,广东汕头515041 [2]汕头市园林管理处岛苗圃场,广东汕头515021
出 处:《中国城市林业》2008年第6期23-25,共3页Journal of Chinese Urban Forestry
基 金:广东省科技攻关项目"滨海城市抗风绿化树种的研究"(项目编号2003C32203;2007B020804008)。
摘 要:通过对市区主要绿地进行地下水位及土壤理化性状的调查,结果表明:本市常年地下水位偏高,平均雨季(0.83m)高于旱季(1.20m),越近海受大潮期的影响越大;土壤容重高于正常值0.12~0.42g/cm3,总孔隙度比正常值低近10%;土壤的pH值以微酸性为主,有机质含量极低。对本市园林土壤的主要特征有了较明确的了解,确定了土壤地下水位是影响绿化树种抗风性能的主要外因。A survey was carried out on groundwater table and soil physicochemistry properties of the main green areas in downtown area, results showed that the normal groundwater table is slightly high in Shantou, average groundwater table in rainy season (0.83 m) is higher than that in dry season (1.20 m), and the tide effect on groundwater tale becomes larger as it gets closer to the sea. The soil volume weight is higher than the normal value of 0.12 - 0.42 g/cm3. The total aperture is almost 10% lower than the normal value. The soil pH value is slightly acid, and organic matter content is very low. Based on a clearer understanding of the main features of the garden soils in the city, it was determined that groundwater table is the main external cause affecting wind-resistance function of trees.
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