土壤化学性质对思茅松人工幼林生长的影响  

Effect of Soil Chemical Property on Growth of Young Pinus kesiya var. langbianensis Planted Forests

作　　者：蒋云东[1] 李思广[1] 杨忠元 李明 周静永 

机构地区：[1]云南省林业科学院,昆明650204 [2]景谷县林业局 [3]景谷林业股份有限公司

出　　处：《东北林业大学学报》2006年第1期25-27,共3页Journal of Northeast Forestry University

基　　金：云南省"十五"重点科技攻关课题(2001NG28)中的部分研究内容。

摘　　要：通过调查不同立地条件下思茅松人工幼林的树高、地径及其土壤化学性质,并运用灰关联分析的方法研究了思茅松人工幼林树高、地径与土壤化学性质的关系,探讨了土壤化学性质对思茅松高生长和地径生长的影响。其中,影响最大的是阳离子交换量、速效P、水解酸和pH值,其次是有机质、全P、全N和全K,影响相对较小的肥力指标是盐基饱和度、速效N和速效K。Relationships between tree height, base diameter and soil chemical properties of young Pinus kesiya vat. langbianensis planted forests were studied by the method of gray relational analysis, and effects of soil chemical properties on tree height and base diameter were also approached in terms of soil chemical properties and tree height, base diameter under different site conditions. Restdts showed that cation exchange capacity, soll available phosphorus, hydrolyzed acid and pH have bigger influence on the height and base diameter of Pinus kesiya vat. langbianensi, then followed by organic matter, total phosphorus, total nitrogen and total kalium, and degree of base saturation, available nitrogen and available phosphorus have less influence on the height and base diameter.

关 键 词：思茅松 土壤肥力 灰关联度 

分 类 号：S714.2[农业科学—林学]