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[1]LI Cuilian,DAI Quanhou,YAO Yun.Fractal Features of Soil in the Different Degrees of Stony Desertification in Caohai[J].Research of Soil and Water Conservation,2015,22(01):158-162,167.

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Fractal Features of Soil in the Different Degrees of Stony Desertification in Caohai

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 22 Number of periods: 2015 01 Page number: 158-162,167 Column: Public date: 2015-02-28

Title:: Fractal Features of Soil in the Different Degrees of Stony Desertification in Caohai

Author(s):: LI Cuilian^1,2, DAI Quanhou¹, YAO Yun³; 1. College of Forestry, Guizhou University, Guiyang 550025, China;
2. Xifeng Forestry and Afforestation Bureau, Xifeng, Guizhou 551100, China;
3. Xifeng Water Resources Bureau, Xifeng, Guizhou 551100, China

Keywords:: Caohai; degree of stony sesertification; fractal dimension

CLC:: S152.3

DOI:: -

Abstract:: Based on the calculation method of soil fractal dimension, the fractal dimension of soil particle, micro-aggregates and water-stable aggregates in different degree of Stony Desertification in Caohai was studied. The results showed that the fractal dimension of particle size distribution was dramatically negatively correlated with soil silt (0.001—0.005 mm) (r=-0.963^**, P < 0.01) and significantly positively correlated with soil clay (< 0.001 mm) (r=0.995^**,P < 0.01). Soil micro-aggregates (> 0.01 mm) was main component of aggregate, its fractal dimension was significantly positively correlated with large size micro-aggregates (> 0.01 mm) (r=-0.964^**,P < 0.01). Air-dried soil aggregate (> 5 mm) accounts for more than 70% of air-dried soil aggregate composition. Through wet screen processing, air-dried soil aggregate (> 5 mm) reduced, the other sizes of aggregates increase to some extent, increment of < 0.25 mm aggregate significant. In the process of desertification, soil clay content increased, the fractal dimension of soil particles and micro-aggregates fractal dimension increased gradually. This study aims to provide reference for desertification control and wetland protection of Caohai through the study of rocky desertification soil structure characteristics.

References:: [1] 齐建文,李矿明,黎育成,等.贵州草海湿地现状与生态恢复对策[J].中南林业调查规划,2012,31(2):39-40,56.
[2] 耿继斌.石漠化现状与对策研究:以威宁县为例[J].林业建设,2011(4):27-31.
[3] 王佩将,戴全厚,丁贵杰,等.喀斯特植被恢复过程中的土壤分形特征[J].水土保持学报,2012,26(4):178-182,230.
[4] 张治伟,傅瓦利,朱章雄,等.石灰岩区土壤分形特征及其与土壤性质的关系[J].土壤,2009,9(41):90-96.
[5] 胡宁,傅瓦利,马志敏,等.岩溶石漠化山地不同退耕还林模式土壤抗侵蚀性及其与结构体分形关系研究[J].中国岩溶,2008,27(2):115-121.
[6] 龙健,李娟,邓启琼,等.贵州喀斯特山区石漠化土壤理化性质及分形特征研究[J].土壤通报,2006,37(4):635-639.
[7] 张昌胜,刘国彬,薛萐,等.不同沙生植被土壤微团聚体分形特征及抗蚀性[J].水土保持通报,2012,32(2):1-6.
[8] 刘霞,姚孝友,张光灿,等.沂蒙山林区不同植物群落下土壤颗粒分形与孔隙结构特征[J].林业科学,2011,47(8):31-37.
[9] 何毓蓉,廖超林,张保华,等.长江上游人工林与天然林土壤结构质量及保水抗蚀性研究[J].水土保持学报,2005,19(5):1-4.
[10] 丁文峰,丁登山.黄土高原植被破坏前后土壤团粒结构分形特征[J].地理研究,2002,21(6):700-706.
[11] 李民义,张建军,王春香,等.晋西黄土区不同土地利用方式对土壤物理性质的影响[J].水土保持学报,2013,27(3):125-130.
[12] 卢红梅,王世杰.喀斯特石漠化过程中土壤的物理性质变化[J].安徽农业科学,2009,37(8):3621-3625,3644.
[13] 罗绪强,王世杰,张桂玲,等.喀斯特石漠化过程中土壤颗粒组成的空间分异特征[J].中国农学通报,2003,25(12):227-233.
[14] 王德炉,朱守谦,黄宝龙.石漠化过程中土壤理化性质变化的初步研究[J].山地农业生物学报,2003,22(3):204-207.
[15] 彭琴,林昌虎,何腾斌.贵州省喀斯特山区不同石漠化等级土壤粒级特征[J].水土保持通报,2007,27(2):29-32.
[16] 中国科学院南京土壤研究所.土壤理化分析[M].上海:上海科学技术出版社,1978.
[17] 杨培岭,罗远培,石元春.用粒径的重量分布表征的土壤分形特征[J].科学通报,1993,38(20):1896-1899.
[18] 储小院,王玉杰,刘楠,等.重庆缙云山典型林分林地土壤微团聚体特征分析[J].土壤通报,2009,40(6):1240-1244.
[19] 陈恩凤,周礼恺,武冠云.微团聚体的保费供肥性能及其组成比例在评断土壤肥力水平中的意义[J].土壤学报,1994,31(1):18-25.
[20] 王清奎,汪思龙.土壤团聚体形成与稳定机制及影响因素[J].土壤通报,2005,36(3):415-421.
[21] 高君亮,李玉宝,虞毅,等.毛乌素沙地不同土地利用类型土壤分形特征[J].水土保持研究,2010,17(6):220-223.
[22] 杨智,兰雪,戴全厚,等.黔中地区不同岩性土壤抗冲抗蚀性研究进展[J].水土保持研究,2010,17(4):6-9.
[23] 陈子玉,顾祝军.南方水蚀区不同侵蚀程度土壤粒径分形研究[J].水土保持研究,2013,20(4):13-17.
[24] 王贤,张洪江,程金花,等.重庆四面山几种林地土壤颗粒分形特征及其影响因素[J].水土保持学报,2011,25(3):154-159.

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