彰武北部沙地土壤钾素状况的研究  

Status of Soil K on Northern Sandy Land of Zhangwu County

作　　者：于相洋[1] 杨树军[1] 刘广[1] 

机构地区：[1]辽宁省固沙造林研究所,辽宁阜新123000

出　　处：《防护林科技》2011年第2期34-35,共2页Protection Forest Science and Technology

摘　　要：对彰武县北部沙地不同利用类型立地的土壤钾素状况的研究表明:彰武县北部沙地土壤全钾含量处于较高水平,速效钾、缓效钾含量仅杨树纯林及樟子松、油松和樟子松、杨树混交林为较高水平,而大面积的樟子松林和农业用地均为较低水平。Status of soil K in northern sandy land of Zhangwu county was studied with different land use types.Result shows that：total K content of soil in northern sandy soil of Zhangwu is at a high level;content of available K,slow K in pure forest of poplar,mixed forest of Pinus sylvestris var.mongolica Pinus tabulaeformis,Pinus sylvestris var.mongolica poplar are higher,while that of large areas of Pinus sylvestris var.mongolica forests and agricultural land are low.

关 键 词：沙地土壤 全钾 速效钾 缓效钾 固钾力 

分 类 号：S714.8[农业科学—林学]