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泥石流源区新银合欢林地土壤微团聚体分形特征
Alternative TitleFractal Features of Soil Micro-aggregates under Leucaena leucocephala Forest in Debris Flow Source Area
郭灵辉1,2,3; 王道杰1,2; 张云红1,4; 陈东1,2,3
2010
Source Publication水土保持学报
ISSN1009-2242
Volume24Issue:3Pages:243-247
SubtypeArticle
Contribution Rank1
Abstract采用统计分析手段研究了泥石流源区新银合欢林土壤微团聚体分形特征及其与土壤养分之间的关系.结果表明:土壤微团聚体分形维数随土层深度的增加呈现出增加趋势,0-40cm土层尤其明显;大粒径微团聚体(>0.02mm)构成土壤微结构的主体;0.02mm粒径可作为土壤微团聚体分形维数的临界值,大于这一粒径的微团聚体含量越多,土壤微团聚体分维值越小,反之,分维值越大.土壤微团聚体分形维数与土壤有机质,全氮,碱解氮,全磷,速效磷,速效钾呈显著负相关,这说明土壤微团聚体分形维数能够客观地表征本区新银合欢林土壤肥力状况,从而为抑灾林管理提供依据
Other AbstractIn the study,the fractal features of soil micro-aggregates and the relationships between them and soil nutrients under Leucaena leucocephala forest in debris flow source area were analyzed by means of statistical method. The result showed that fractal dimensions of soil micro-aggregates increased with the increasing soil depths,especially in the surface layer(0-40 cm). Lager micro-aggregates(>0.02 mm) constituted the main body of soil microstructure.0.02 mm diameter can be regarded as the critical size for the fractal features of soil micro-aggregates. That is,the larger the content of the micro-aggregates (>0.02 mm),the smaller the fractal dimension. There were significantly negative correlations between fractal dimensions of soil micro-aggregates and contents of soil organic matter,total-N,alkali-hydrolyzable-N,total-P,available-P,available-K,which described that fractal dimensions of soil micro-aggregates could be able to indicate soil fertility states. And then,this can provide some bases for the management of inhibiting debris flow forest
Keyword泥石流源区 新银合欢 微团聚体 分形特征
DOI10.13870/j.cnki.stbcxb.2010.05.002
Indexed ByCSCD
Language中文
CSCD IDCSCD:4029383
Citation statistics
Cited Times:10[CSCD]   [CSCD Record]
Document Type期刊论文
Identifierhttp://ir.imde.ac.cn/handle/131551/25765
Collection成都山地所知识仓储(2009年以前)
Corresponding Author王道杰
Affiliation1.中国科学院山地灾害与地表过程重点实验室;
2.中国科学院水利部成都山地灾害与环境研究所;
3.中国科学院研究生院;
4.山东师范大学人口资源与环境学院
First Author Affilication中国科学院水利部成都山地灾害与环境研究所
Corresponding Author Affilication中国科学院水利部成都山地灾害与环境研究所
Recommended Citation
GB/T 7714
郭灵辉,王道杰,张云红,等. 泥石流源区新银合欢林地土壤微团聚体分形特征[J]. 水土保持学报,2010,24(3):243-247.
APA 郭灵辉,王道杰,张云红,&陈东.(2010).泥石流源区新银合欢林地土壤微团聚体分形特征.水土保持学报,24(3),243-247.
MLA 郭灵辉,et al."泥石流源区新银合欢林地土壤微团聚体分形特征".水土保持学报 24.3(2010):243-247.
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