摘要
测定了蚌埠市建成区内大型景观绿地土壤的有机质含量、铵态氮含量、速效磷含量、pH和土壤全盐量。在分析了各指标变异系数后发现在不同绿地类型之间绿地土壤化学指标均表现出中等程度的变异。相关分析表明,不同绿地类型土壤中除pH与全盐量间存在显著的相关性外,5种土壤化学指标间没有显著相关性。说明即使在较小的城市建成区范围内,不同类型的绿地土壤由于土壤产生及来源不同,以及受到的人为干扰强度不一样,土壤化学指标也存在空间异质性。
This study investigates the several chemical indices of urban green space soil in Bengbu, including soil organic matter, NH4^＋ -N, available P, pH, total salt content. The soil chemical indices which come from different greenbehs types present the heterogeneity through analysing the variation coefficient. The correlation analysis of soil chemical indices indicates that there is nonsignificant correlation among these soil chemical indices except pH and total salt content. The conclusion is brought forward that the uban green space soil nutrients have spacial variability even if it is a small range in city. The reason maybe comes from the soil original background and jamming intensity.
出处
《中国农学通报》
CSCD
北大核心
2009年第9期165-168,共4页
Chinese Agricultural Science Bulletin
基金
安徽省教育厅自然科学基金项目"城市植被景观评价体系研究"(2006KJ035C)
安徽科技学院引进人才专项基金项目"蚌埠市城市植被卫星遥感调查研究"(ZRC200566)
关键词
城市土壤
城市绿地
异质性
uban soil, urban green space, heterogeneity
