樟子松林下土壤养分、微生物及酶活性的研究  

Soil Nutrient,Microorganism and Enzyme Activity in Pinus Sylvestris var.mongolica Forests

作　　者：杨涛[1] 徐慧[1] 方德华[2] 朱教君[3] 

机构地区：[1]中国科学院沈阳应用生态所陆地生态过程重点实验室,辽宁沈阳110016 [2]西南农业大学资源环境学院,重庆400716 [3]中国科学院沈阳应用生态所,辽宁沈阳110016

出　　处：《土壤通报》2006年第2期253-257,共5页Chinese Journal of Soil Science

基　　金：中国科学院知识创新工程重要方向资助项目(KZCX3-SW-418);辽宁省自然科学基金资助项目(2002110016)

摘　　要：为探讨樟子松林土壤生化特性及其与土壤肥力的关系，本文对我国最重要樟子松原产地一红花尔基地区的不同林龄樟子松林下土壤养分、微生物及酶活性进行了测定和分析，结果表明：不同林地的土壤养分、微生物和酶活性均表现出差异。土壤养分、微生物和土壤酶活性总体变化趋势是先随着树龄增加而增加，到60-70年树龄时达到最大，后随着树龄增大各项指标呈现下降的趋势。土壤微生物数量、酶活性与土壤养分含量之间呈显著相关关系，可作为评价土壤肥力的指标。In order to investigate the correlation between biochemical characteristics of soil and soil fertility in Pinus sylvestris var. mongolica forests, soil nutrient, microorganism and enzyme activity were analyzed in Pinus sylvestris var. mongolica forests in Honghuaerji area. The results are as follows： the difference in microorganism quantity among different types of soil was significant, so were the enzyme activity and soil nutrient. The correlation among soil microorganism quantity, enzyme activity and soil nutrient content was significant which can be used as evaluation index of soil fertility.

关 键 词：樟子松 土壤养分 微生物 酶活性 

分 类 号：S158[农业科学—土壤学] S154.2[农业科学—农业基础科学]