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| 城市森林土壤肥力质量指标筛选——以南京市为例 | |
| 引用本文： | 单奇华,俞元春,张建锋,虞木奎,成向荣. 城市森林土壤肥力质量指标筛选——以南京市为例[J]. 土壤, 2009, 41(5): 777-783 |
| 作者姓名： | 单奇华 俞元春 张建锋 虞木奎 成向荣 |
| 作者单位： | 1. 南京林业大学森林资源与环境学院,南京,210037;中国林业科学研究院亚热带林业研究所,浙江富阳,311400 2. 南京林业大学森林资源与环境学院,南京,210037 3. 中国林业科学研究院亚热带林业研究所,浙江富阳,311400 |
| 基金项目： | 国家林业局"948"引进项目，中央级公益性科研院所基本科研业务费专项，"十一五"国家科技支撑专题项目 |
| 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 ～ 20 cm),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. |
| 关 键 词： | 城市森林土壤 相关性 聚类分析 指标筛选?? |
Determination of fertility index of urban forest soil in Nanjing City |
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| SHAN Qi-hu,YU Yuan-chun,ZHANG Jian-feng,YU Mu-kui,CHENG Xiang-rong. Determination of fertility index of urban forest soil in Nanjing City[J]. Soils, 2009, 41(5): 777-783 | |
| Authors: | SHAN Qi-hu YU Yuan-chun ZHANG Jian-feng YU Mu-kui CHENG Xiang-rong |
| Affiliation: | College of Forest Resources and Environment, Nanjing Forestry University, Nanjing 210037, China |
| Abstract: | 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. |
| Keywords: | Urban forest soil Correlations Cluster analysis Indicators pick |
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