IMHE OpenIR  > 山地灾害与地表过程重点实验室
Alternative TitleCharacteristics of Soil Particle Fractal Dimension Under Different Coverage Grassland of the Area with High-frequency Debris Flow
谢贤健1; 韦方强2
Source Publication水土保持学报
Contribution Rank2
Abstract运用土壤粒径质量分布原理与分形理论,研究泥石流频发区蒋家沟3种不同盖度草地土壤粒径分形特征。结果表明:不同盖度草地的土壤粒径分布具有不同的分形特征,其分形维数在2.520 8~2.669 1之间,其关系为:低盖度草地>高盖度草地>中盖度草地;不同盖度草地土壤分形维数与<0.002 mm,0.05~ 0.002 mm粒径含量呈极显著正相关,土壤的颗粒越小,细粒含量越高,分形维数越大;分形维数与土壤容重呈显著正相关,与有机质含量呈显著负相关。土壤粒径含量、土壤容重、有机质是表征土壤理化性质的重要参数,对土壤肥力状况、结构稳定性及抗蚀性能有着重要的影响。因此,土壤颗粒的分形维数可作为表征土壤结构和性质的重要参数,也可作为土壤抗蚀性的指标之一。研究结果可为研究区植被恢复和土地利用开发提供一定的理论依据。
Other AbstractAccording to the quality principle of soil particle size distribution and theories of soil fractal,characteristics of soil particle fractal under 3 typical coverage grasslands of the area with high-frequency debris flow were studied in Jiangjiagou ravine.The research showed that:Under different coverage grassland,soil particle size distribution had different fractal characteristics,its fractal dimension was between 2.520 8 to 2.669 1,and the order was low coverage grassland>middle coverage grassland>high coverage grassland;Under the different coverage grassland,fractal dimension had a significant linear positive correlation to the content of soil particle size <0.002 mm and 0.05 mm to 0.002 mm,in other words,the smaller the soil particles,the higher the fines content,the greater the fractal dimension;Fractal dimension had a significant positive linear correlation with the soil bulk density,and a significant negative linear correlation with the organic matter.Soil particle size,soil bulk density,organic matter are soil important parameters to characterize soil physical and chemical properties,which has an important impact on soil fertility,structural stability and corrosion resistance.In the other word,soil particle fractal dimension can be used as an important parameter for characterizing the soil structures and properties,also can be used as an indicator of soil anti-erodibility;on the other hand,the results could provide a theoretical guidance for vegetation restoration and land use development.
Keyword泥石流 草地 土壤颗粒 分形维数
Indexed ByCSCD
Citation statistics
Cited Times:25[CSCD]   [CSCD Record]
Document Type期刊论文
Corresponding Author谢贤健
Recommended Citation
GB/T 7714
谢贤健,韦方强. 泥石流频发区不同盖度草地土壤颗粒的分形特征[J]. 水土保持学报,2011,7(3):202-206.
APA 谢贤健,&韦方强.(2011).泥石流频发区不同盖度草地土壤颗粒的分形特征.水土保持学报,7(3),202-206.
MLA 谢贤健,et al."泥石流频发区不同盖度草地土壤颗粒的分形特征".水土保持学报 7.3(2011):202-206.
Files in This Item:
File Name/Size DocType Version Access License
泥石流频发区不同盖度草地土壤颗粒的分形特(162KB)期刊论文出版稿开放获取CC BY-NC-SAView Application Full Text
Related Services
Recommend this item
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[谢贤健]'s Articles
[韦方强]'s Articles
Baidu academic
Similar articles in Baidu academic
[谢贤健]'s Articles
[韦方强]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[谢贤健]'s Articles
[韦方强]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: 泥石流频发区不同盖度草地土壤颗粒的分形特征_谢贤健.pdf
Format: Adobe PDF
All comments (0)
No comment.

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.