辽东桤木对土壤肥力的影响  

Effect of Alnus sibirica on Soil Fertility

作　　者：刘丽娟[1] 张卫东[2] 秦佳梅[3] 徐鸿雁[2] 

机构地区：[1]通化师范学院,通化134002 [2]通化市园艺研究所 [3]通化师范学院生物系

出　　处：《东北林业大学学报》2010年第1期54-55,共2页Journal of Northeast Forestry University

基　　金：吉林省科技发展计划项目(200705C02)

摘　　要：为研究辽东桤木对土壤肥力的影响,采用常规分析方法对不同树龄人工林的林木下土壤进行土壤养分的质量分数测定。结果表明,相同树龄的辽东桤木,其根际土壤比根际外土壤的土壤养分质量分数高;随树龄的增加,林木下土壤养分除速效磷质量分数降低外,其余土壤养分质量分数均呈逐年上升趋势,且高于对照花楸木,说明辽东桤木对土壤养分的影响较明显,可提高土壤肥力。Soil nutrient contents of Alnus sibirica Fisch.ex Turcz.plantations of different ages were determined by routine methods in order to study the effect of A.sibirica on soil fertility.Result showed that nutrient content in rhizosphere soil in A.sibirica plantation of the same age was higher than that in non-rhizosphere soil.The contents of all the nutrients in the soil increased with forest age increasing except the content of available phosphorus,which were higher than those of Sorbus L.plantation（the control）.It is indicated that the effect of A.sibirica on soil fertility is obvious and it can increase the soil fertility.

关 键 词：辽东桤木 有机质 速效氮 速效磷 速效钾 

分 类 号：S158.3[农业科学—土壤学]