贵州毛竹林不同径级类型的土壤理化特性变化  

Soil Properties of Phyllostachys heterocycla cv.pubescens Forests with Different Diameter and Density in Guizhou Province

作　　者：张佐玉 张喜 崔迎春 姜霞 王莉莉[1,2] 霍达[1,2] 母永秋 

机构地区：[1]贵州省林业科学研究院,贵州贵阳550011 [2]贵州大学,贵州贵阳550005 [3]葫市楠竹场,贵州赤水563000

出　　处：《竹子研究汇刊》2012年第2期6-10,共5页Journal of Bamboo Research

基　　金：贵州省科技厅重大专项(2007-6002-030201);贵州省科技厅(院所创新能力2009-4002);贵州省林业厅标准化项目(2011-03)资助

摘　　要：在贵州省毛竹主要分布区的赤水河流域,利用"空间替代时间"方法研究了毛竹林径级同土壤主要理化指标的关系,研究表明毛竹林土壤呈A层>B层趋势的指标有非毛管孔隙度、总孔隙度、最大持水量、最小持量、有机质、全N量、全P量、阳离子交换量、水解N量、有效P量、速效K量和交换性盐基量,呈A层<B层趋势的指标有密度、全K量和pH值。这些指标随毛竹林径级变化呈规律性变化,反映了毛竹林生长同土壤主要理化指标间的协同演化,不同径级类型毛竹林土壤主要理化指标或差异显著、或不显著。The relationships between the diameter at breath height（DBH） of moso bamboo forests and soil physical and chemical properties were studied in Chishui River Basin,Guizhou Province,China,using the ＂space time substitution＂ methods.Results showed that non-capillary porosity,total capillary porosity,maximum and minimum water holding capacity,organic,TN,TP,cation exchange capacity,hydraulic N,valid P,effective K and exchangeable base content in A layer were higher than that in B layer.While,soil density,total K content and pH value in A layer were lower than that in B layer.The shoot DBH of moso bamboo forests regularly changed with these indices,indicating the synergistic development between bamboo growth and soil physical and chemical properties.

关 键 词：贵州省 毛竹林 径级 密度 土壤理化指标 

分 类 号：S795[农业科学—林木遗传育种]