IMHE OpenIR  > 山地灾害与地表过程重点实验室
Alternative TitleCharacteristics of soil properties and fractal dimensions of destroyed and naturally restored forest land under flood disaster disturbance
罗清虎1,2; 吴建召1,2; 崔羽1,2; 孙凡1,2; 林勇明1,2; 王道杰3; 吴承祯1,4
Source Publication应用与环境生物学报
Contribution Rank3
Other AbstractThree different kinds of naturally restored forest land (bamboo forest,Chinese fir forest,and secondary broad-leaved forest) destroyed by major floods were selected for the determination of soil basic characters (physical properties,including soil particle composition and content of main nutrient components) with undestroyed forest land as a control.The fractal dimension D was calculated by using fractal theory.The relationship between fractal dimension and soil basic characters was discussed.The following results were noted:(1) Silt content comprised the largest proportion of the three kinds of forest soil.Fractal dimension ranged between 2.58 and 2.70.The fractal dimension of 0-10-cm soil layer was in the order of bamboo forest >Chinese fir forest >secondary broad-leaved forest and destroyed and naturally restored forest land >undestroyed forest land.Significant differences were observed between the naturally restored broadleaved forest and undestroyed forest land.(2) The soil bulk densities of the bamboo and secondary broadleaved forests showed that the naturally restored forest land was significantly larger than the undestroyed forest land,while the soil moisture content,capillary holding capacity,non-capillary porosity,and total porosity showed the opposite trend.No significant difference was observed in the physical characteristics of the Chinese fir forest under the two conditions.The soil nutrient content of each forest type decreased with increasing soil depth;thus,the naturally restored forest land had significantly lower soil nutrient content than the undestroyed forest land.The overall recovery status showed the following order:Chinese fir forest >secondary broad-leaved forest >bamboo forest.(3) Significant positive correlations were observed between soil fractal dimension and soil clay content,soil bulk density,and significant negative correlations were observed between soil fractal dimensions and organic matter,total nitrogen,soil water content,capillary water holding capacity,non-capillary porosity,and total capillary porosity.Therefore,a fractal dimension can objectively characterize the characteristics of soil structure and soil nutrients.The soil conditions of the destroyed and naturally restored forest lands have not yet reached the level of undestroyed forest land.With regard to the poor condition of the naturally restored bamboo forests,artificial afforestation can be properly carried out to optimize the community structure,thus improving soil conditions and promoting the recovery process of destroyed vegetation under disasters.
Keyword洪涝灾害 森林土壤 分形维数 理化性质 植被恢复
Indexed ByCSCD
Citation statistics
Cited Times:3[CSCD]   [CSCD Record]
Document Type期刊论文
Corresponding Author林勇明
Recommended Citation
GB/T 7714
罗清虎,吴建召,崔羽,等. 洪涝灾害干扰下受损自然恢复林地土壤基本性状及分形维数特征[J]. 应用与环境生物学报,2019,25(1):29-37.
APA 罗清虎.,吴建召.,崔羽.,孙凡.,林勇明.,...&吴承祯.(2019).洪涝灾害干扰下受损自然恢复林地土壤基本性状及分形维数特征.应用与环境生物学报,25(1),29-37.
MLA 罗清虎,et al."洪涝灾害干扰下受损自然恢复林地土壤基本性状及分形维数特征".应用与环境生物学报 25.1(2019):29-37.
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