杭州城市不同功能区内土壤特征及其与广布植物节节草之间的关系  

The Relationships between the Soil Characteristics of Different Functional Districts and Hippochaete ramosissimum

作　　者：徐同凯[1] 杨超[1] 谢长永[1] 陈波[1] 

机构地区：[1]杭州师范大学生命与环境科学学院,浙江杭州310036

出　　处：《杭州师范大学学报（自然科学版）》2013年第3期233-239,共7页Journal of Hangzhou Normal University(Natural Science Edition)

基　　金：国家自然科学基金项目(40971041);杭州市科技局社会发展科研专项(20100933B16);杭州市属高校重点实验室科技创新项目(20100333T08);杭州师范大学城市学专项(2012csx27);浙江省新苗人才计划创新创业孵化项目(ZX13005001041)

摘　　要：对杭州市高架下、公路边和文教区3个功能区内的土壤有机碳、氮、磷及生长于3个功能区上的广布植物节节草植株有机碳、氮和磷的分布特征进行了分析,并讨论了3个功能区中土壤与节节草之间的相关关系.结果表明,不同功能区内土壤有机碳的平均含量不同,土壤全氮含量存在极显著差异,而土壤全磷的平均含量差异不显著;不同功能区节节草植株有机碳平均含量依次为校园内>高架下>公路边;植株体内有机碳含量与相对稳定的土壤有机碳有关,而其植株内的全氮含量表现出与相对不稳定土壤相关的趋势.Abstract： The paper analyzed the distribution characteristics of the organic carbon, nitrogen and phosphorus in the soil from 3 different functional districts in Hangzhou as well as the organic carbon, nitrogen and phosphorus of Hippochaete ramosissimum, which distributes commonly in these different functional districts, and studied the relationships between them. The results show the average content of organic carbon in different functional districts is different, and there are significant differences of nitrogen content while the differences of phosphorus content are indistinct. The organic carbon of Hippochaete ramosissimum in different districts can be ranked in a decreasing order as campus〉viaduct bridge〉roadside. The organic carbon content in the plants is related to the stable organic carbon content in the soil, and the nitrogen content in the plants is related to the unstable soil.

关 键 词：功能区 城市土壤 有机碳 节节草 

分 类 号：X132[环境科学与工程—环境科学]