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[1]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(01):1-12.[doi:10.19675/j.cnki.1006-687x.2018.04032]
　LUO Qinghu,WU Jianzhao,et al.Characteristics of soil properties and fractal dimensions of destroyed and natural restored forest land under flood disaster disturbance*[J].Chinese Journal of Applied & Environmental Biology,2019,25(01):1-12.[doi:10.19675/j.cnki.1006-687x.2018.04032]
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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*()
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《应用与环境生物学报》[ISSN:1006-687X/CN:51-1482/Q]

卷:
25卷
期数:
2019年01期
页码:
1-12
栏目:
研究论文
出版日期:
2019-02-25

文章信息/Info

Title:
Characteristics of soil properties and fractal dimensions of destroyed and natural restored forest land under flood disaster disturbance*
文章编号:
201804032
作者:
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
1福建农林大学林学院 福州 350002
2福建省高校森林生态系统过程与经营重点实验室 福州 350002
3中国科学院水利部成都山地灾害与环境研究所 成都 610041
4武夷学院生态与资源工程学院 南平 354300
Author(s):
LUO Qinghu1;  2;  WU Jianzhao1;  2;  CUI Yu1;  2;  SUN Fan1;  2;  LIN Yongming1;  2**;  WAN Daojie3 &WU Chengzhen1;  4
1 College of ForestryFujian Agriculture and Forestry UniversityFuzhou 350002, China?
2 Key Laboratory for Forest Ecosystem Process and Management of Fujian Province, Fuzhou 350002, China?
3 Institute of Mountain Hazards and Environment, Chinese Academy of Sciences and Ministry of Water Conservancy, Chengdu 610041, China?
4 College of Ecology and Resources Engineering, Wuyi University, Nanping 354300, China
关键词:
洪涝灾害; 森林土壤; 分形维数; 理化性质; 植被恢复
Keywords:
flood disaster;  forest soil;  fractal dimension;  physicochemical properties;  vegetation restoration
DOI:
10.19675/j.cnki.1006-687x.2018.04032
摘要:
选取重大洪涝灾害干扰下受损自然恢复三种不同林地（毛竹林、杉木林、次生阔叶林）为研究对象，以未受损林地为对照，测定了不同林型，运用分形理论计算了分形维数D值，探讨分形维数与土壤的相关关系。结果表明：（1）三种不同林型土壤均以粉粒含量占比最大，分形维数在2.58-2.70之间，0-10cm土层分形维数表现为毛竹林>杉木林>次生阔叶林，受损自然恢复林地>未受损林地，其中次生阔叶林的受损自然恢复林地与未受损林地差异显著。（2）毛竹林与次生阔叶林土壤表现为受损自然恢复林地显著大于未受损林地，土壤含水量、毛管持水量、非毛管孔隙度与总孔隙度则相反，受损自然恢复与未受损杉木林间土壤物理性质的差异较小；各林型土壤养分含量随土层深度的增加而降低，且受损自然恢复林地显著低于未受损林地，总体恢复状况表现为杉木林>次生阔叶林>毛竹林。（3）土壤分形维数与土壤黏粒含量、土壤存在显著正相关关系，与有机质、全氮、土壤含水量、毛管持水量、非毛管孔隙度及总毛管孔隙度存在显著负相关关系。因此，分形维数能够客观地表征土壤的结构特征以及土壤养分肥力特征；恢复状况较差的毛竹林，可以适当地进行人工植树造林，优化群落结构，进而改善土壤条件，促进灾害干扰下受损植被的恢复进程。
Abstract:
Three different kinds of natural restored forest land (bamboo forest, Chinese fir forest, secondary broad-leaved forest) destroyed by major floods were selected for the determination of soil basic characters(physical properties including soil particle composition and contents 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 results show: (1) Silt content was the largest proportion of three kinds of forest soil. Fractal dimension was between 2.58-2.70. The fractal dimension of 0-10cm soil layer was in the order of bamboo forest> Chinese fir forest> secondary broad-leaved forest, and destroyed and natural restored forest land>undestroyed forest land. There were significant difference between the natural restored broadleaved forest and the undestroyed forest land. (2)Soil bulk density of bamboo forest and secondary broadleaved forests showed that the naturally restored forest land was significantly larger than the undestroyed forest land while soil moisture content, capillary holding capacity, non-capillary porosity and total porosity were the opposite. There was no significant difference in the physical characteristics of Chinese fir forest under the two conditions. The soil nutrient content of each forest type decreased with the increase of soil depth and the natural restored forest land was significantly lower than undestroyed forest land. The overall recovery status showed as Chinese fir forest > secondary broad-leaved forest > bamboo forest. (3) There were significant positive correlation between soil fractal dimension and soil clay content, soil bulk density and significant negative correlation between soil fractal dimension and with organic matter, total nitrogen, soil water content, capillary water holding capacity, non-capillary porosity and total capillary porosity. Therefore, Fractal dimension can objectively characterize the characteristics of soil structure and soil nutrients. The soil conditions of destroyed and natural restored forest land have not yet reached the level of undestroyed forest land. For poor condition of natural restored bamboo forests, artificial afforestation can be properly carried out to optimize the community structure and thus improving soil conditions and promoting the recovery process of destroyed vegetation under disasters.

相似文献/References:

[1]刘滔,尹光彩,刘菊秀,等.酸沉降对南亚热带森林土壤主要元素的影响[J].应用与环境生物学报,2013,19(02):255.[doi:10.3724/SP.J.1145.2013.00255]
　LIU Tao,YIN Guangcai,LIU Juxiu,et al.Impact of Acid Deposition on the Main Nutrients of Subtropical Forest Soil[J].Chinese Journal of Applied & Environmental Biology,2013,19(01):255.[doi:10.3724/SP.J.1145.2013.00255]

备注/Memo

备注/Memo:
收稿日期: 2018-04-23 接受日期 Accepted: 2018-06-11
*国家自然科学基金项目（41790434）、福建农林大学杰出青年科研人才计划项目（xjq201716）、福建农林大学科技创新专项基金项目（CXZX2017111，CXZX2017283）资助
**通讯作者（E-mail:monkey1422@163.com）
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更新日期/Last Update: 2018-07-13