【摘要】 对随州-岳阳高速公路的表土进行了理化分析,旨在为公路绿化植物更好地生长,节约绿化资金和实现植物的绿化功能提供科学依据.得出了土壤质地、pH值、各种养分含量和阳离子交换量(CEC)的沿线分布特征,提出了高速公路绿化设计应根据不同生态区段(森林和农田)不同的土壤理化性质因地制宜,合理选择绿化植物和施肥管护的建议.更多还原

【Abstract】 The physical and chemical characteristics of the top soil used in afforestation areas of the Suizhou-Yueyang freeway are analyzed,aiming to provide a scientific warranty for better growing of the plants,the economization of fund in virescence on the freeway and actualizing the function of afforestation.The paper obtains the distribution of the texture,pH values,nutrient contents and CEC values of the top soil along the freeway,and then put forwards some suggestions about the fertilizations,managements,improvements of soil according to the different edaphic physicochemical properties in the forested and agricultural ecotypic sections,so as to select trees to plant suitably.更多还原