黑瞎子岛地区土壤养分特征分析  

Analysis of soil nutrient characteristics of Heixiazi island

作　　者：袁海峰[1] 王立民[1] 罗春雨[1] 王继丰[1] 刘晓佳[1] 曹宏杰[1] YUAN Hai-feng(Institute of Natural Resources and Ecology,HAS.National and Provincial Joint Engineering Laboratory of Wetlands and Ecological Conservation,Harbin150040,China)

机构地区：[1]黑龙江省科学院自然与生态研究所湿地与生态保育国家地方联合工程实验室,哈尔滨150040

出　　处：《国土与自然资源研究》2018年第6期76-81,共6页Territory & Natural Resources Study

基　　金：国家重点研发计划重点专项(2016YFC0500405-03);黑龙江省基本科研业务费专项基金项目(STJB16-02;ZNBZ2017ZR-08)

摘　　要：以黑龙江省黑瞎子岛地区为研究对象,采用野外调查与实验分析相结合的方法,选取代表土壤性质的8个指标作为分析参数,对其进行经典统计分析、相关分析、主成分分析和聚类分析。结果表明,黑瞎子岛地区土壤养分含量异质性强,土壤养分含量较高,差异比较大,除pH之外的7个土壤理化指标均呈强度变异。主成分分析结果表明,土壤综合养分因子(有机质、全氮、全磷)是影响土壤养分水平的主要因子群,其次是土壤的碱解氮和速效磷水平,速效钾和全钾的作用相对较弱。根据土壤养分综合得分进行聚类分析的结果,可将土壤样本划分为5种类型,植物类型和地形直接导致了土壤养分含量的变化。A study was conducted to determine the8soil physicchemical property indexes through the analysis of traditional statistics,principal component analysis and cluster analysis by field investigation and indoor analysis.The results indicated that the Heixiazi island had high landscape heterogeneity,high content of soil nutrients and large variations of soil nutrients,except the pH.Principal component analysis indicated that the soil general nutrient index was the primary factor to soil nutrients,soil available N and P were the second,the total and available K were the last.The cluster analysis results,based on general score of soil nutrients,indicated the soil samples could be divided into five types,and the plant community and topography factors directly resulted in the variance of soil nutrients.

关 键 词：黑瞎子岛 土壤养分 主成分分析 聚类分析 综合得分 

分 类 号：S158[农业科学—土壤学]