文献类型：期刊文献

中文题名：城市森林土壤肥力质量指标筛选——以南京市为例

英文题名：Determination of Fertility Index of Urban Forest Soil in Nanjing City

作者：单奇华[1,2] 俞元春[1] 张建锋[2] 虞木奎[2] 成向荣[2]

第一作者：单奇华

机构：[1]南京林业大学森林资源与环境学院;[2]中国林业科学研究院亚热带林业研究所

年份：2009

期号：5

起止页码：777-783

中文期刊名：土壤

外文期刊名：Soils

收录：CSTPCD;;北大核心:【北大核心2008】；CSCD:【CSCD2011_2012】；

基金：国家林业局"948"引进项目(2005-4-17);中央级公益性科研院所基本科研业务费专项(RISF2006-2007-07);"十一五"国家科技支撑专题项目(2006BAD03A1403)资助

语种：中文

中文关键词：城市森林土壤;相关性;聚类分析;:指标筛选

外文关键词：Urban forest soil, Correlations, Cluster analysis, Indicators pick

分类号：S714

摘要：土壤质量指标的筛选是科学地进行土壤质量评价的前提。本文以城市森林土壤为研究对象,探讨了土壤肥力指标的筛选方法。采集南京市不同功能区森林土壤样品(0～20cm),分析了24个土壤质量指标。根据指标间的相关性和聚类分析结果,筛选出体积质量(容重)、黏粒含量、分散系数、可蚀性因子K值、水稳性指数、pH值、有机质、速效钾和纤维素酶活性,共9个指标作为城市森林土壤肥力质量评价的因子。
It is necessary to establish the proper indicators for soil quality assessment. In this paper a method with Peason two-tailed bivariate correlations and Cluster analysis was applied for the determination of soil quality index of urban forest soil. Urban soil samples at 0-20 cm depths were collected from the forests in Nanjing at different functional areas, and 24 soil indicators were analyzed in lab, finally 9 of soil indicators were selected to compose the minimum factor set for the fertility assessment of urban forest soil, including soil bulk density, clay content, dispersion coefficient, erodibility K values, water stable index, pH, organic matter, available potassium, and cellulase activity.