湖北省太子山不同土地利用方式土壤养分特征  

Soil nutrient characteristics of different land use manner at Taizishan of Hubei province

作　　者：苏万龙[1] 孔凡贵 何野 杜天安 李晨[1] 姜晟[1] 梅莉[1] 

机构地区：[1]华中农业大学园艺林学学院,湖北武汉430070 [2]湖北省太子山林场管理局林业科学研究所,湖北荆门431800

出　　处：《广东农业科学》2015年第1期37-41,共5页Guangdong Agricultural Sciences

基　　金：国家自然科学基金(31370627)

摘　　要：以太子山林场不同立地土壤为对象,研究不同前作利用方式以及不同栽培树种和管理条件下土壤养分的差异。结果表明,太子山土壤呈酸性,主要矿质养分、有机质状况总体良好。氮（2.64 g/kg）、钾（171.65 mg/kg）、有机质（2.33%）含量较高,而磷（6.37 mg/kg）及钙（196.84 mg/kg）含量极低,钾的含量则呈现出很大的变异性（变异系数105%）。不同利用方式土壤之间的土壤磷及钾养分含量存在差异,依次为大棚地〉农田〉大田苗圃。经营不同树种的苗圃和18~25年的马尾松原始土壤之间多数养分含量差异不显著,苗圃之间总体差异也不显著。The soil nutrient contents under different previous land use, tree species and management conditions in Taizishan were analyzed in this paper. Results showed that the soil was acidic, most of the main mineral elements and organic materials were in good conditions. The contents of N（2.64 g/kg）, K（171.65 mg/kg） and organic material（2.33%）were high, but the coefficient of the variation of K was large（105%）, the contents of P（6.37 mg/kg） and Ca（196.84 mg/kg）were at extremely low levels. The contents of P and K were distinct among different land use soil. It showed that P and K of greenhouse soil were the highest, followed by farm land soil, while the field nursery soil was at lowest level. Most of the soil nutrients among different species nurseries and 18-25 year planted forests had no significant difference and there was the same result among each field nursery.

关 键 词：土壤养分 土地利用方式 树种类型 

分 类 号：S714.5[农业科学—林学]