CAJ | 학술논문

通过对一、二代落叶松人工幼龄林土壤交换性阳离子含量的分析比较，结果表明：一、二代落叶松人工幼龄林土壤均无酸化、碱化趋势；一、二代落叶松幼龄林相比，除根际一代落叶松幼龄林交换性钠略低于二代落叶松幼龄林，土壤深度60 cm时，盐基饱和度略低于二代落叶松幼龄林外，在土壤其他深度，一代落叶松幼龄林交换性阳离子含量、盐基总量，交换性阳离子钠、钾、钙、镁的含量均高于二代落叶松幼龄林；落叶松连栽使土壤地力下降，影响树木生长，连栽代数增加，土壤盐基总量、阳离子交换量，交换性钾、镁的含量与落叶松代数关系密切。
통과대일、이대락협송인공유령림토양교환성양리자함량적분석비교，결과표명：일、이대락협송인공유령림토양균무산화、감화추세；일、이대락협송유령림상비，제근제일대락협송유령림교환성납략저우이대락협송유령림，토양심도60 cm시，염기포화도략저우이대락협송유령림외，재토양기타심도，일대락협송유령림교환성양리자함량、염기총량，교환성양리자납、갑、개、미적함량균고우이대락협송유령림；락협송련재사토양지력하강，영향수목생장，련재대수증가，토양염기총량、양리자교환량，교환성갑、미적함량여락협송대수관계밀절。
The content of soil exchangeable cations for first & second-generation larch plantation were analyzed .Re-sult shows that :soil of first & second-generation larch have no trend of acidification & alkalization ;first-generation larch compared with the second-generation larch ,exchangeable sodium of first-generation larch rhizosphere is slight-ly lower than that of second-generation larch ;while soil depth being 60 cm ,base saturation is slightly lower than that of the second-generation larch plantation ;among other soil depth ,the content of exchangeable cations ,total ex-changeable base(TEB) ,exchangeable cations sodium ,potassium ,calcium and magnesium of first-generation larch are higher than that of the second-generation larch ;continuous planting larch can make soil fertility decline ,affect tree growth ,increase continuous plantation ,TEB ,the content of cations exchange capacity (CEC) ,exchangeable po-tassium & magnesium content of soil are closely related to generation of larch .