| 沂蒙山林区不同植物群落下土壤颗粒分形特征 |
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| 引用本文： | 盖小刚,胡小兰,张光灿. 沂蒙山林区不同植物群落下土壤颗粒分形特征[J]. 山东林业科技, 2010, 40(2): 9-13 |
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| 作者姓名： | 盖小刚 胡小兰 张光灿 |
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| 作者单位： | 山东农业大学林学院水土保持系、农业生态与环境重点实验室,山东,泰安,271018 |
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| 基金项目： | 水利部淮河水利委员会资助项目 |
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| 摘 要： | 运用土壤物理学和分形学原理与方法,研究了沂蒙山林区7种植物群落下的土壤颗粒组成与分形特征。结果表明:1)研究区土壤颗粒组成具有石质山地典型粗骨土的结构特征,各种植物群落的土壤中以粗砂粒含量最高,细砂粒含量次之,而石砾含量和粉黏粒含量较低;2)防护林群落具有显著地改善土壤颗粒组成和提高土壤颗粒分形维数的作用,其作用程度为针阔叶(赤松+麻栎)混交林依次高于阔叶林(刺槐纯林、麻栎纯林)和针叶林(赤松纯林);3)土壤颗粒分形维数与土壤中粉黏粒(粉粒及黏粒)含量呈极显著正相关,与细砂粒和粗砂粒含量呈显著的负相关,而与石砾含量的相关性不显著。研究成果可为沂蒙山区水土保持植被类型的合理选择与配置提供参考。
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| 关 键 词： | 土壤物理性质 沂蒙山区 土壤颗粒 分形维数 |
Fractal Features of Soil Particle Size Distribution under Different Vegetation Communities in The Forestry Area of Yimeng Mountainous Area |
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| Gai Xiaogang,Hu Xiaolan,Zhang Guangcan. Fractal Features of Soil Particle Size Distribution under Different Vegetation Communities in The Forestry Area of Yimeng Mountainous Area[J]. Journal of Shandong Forestry Science and Technology, 2010, 40(2): 9-13 |
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| Authors: | Gai Xiaogang Hu Xiaolan Zhang Guangcan |
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| Affiliation: | Gai Xiaogang,Hu Xiaolan,Zhang Guangcan(1.Soil , Water Conservation Department of Forestry College,Sh,ong Agricultural University,Key Laboratory of Agricultural Ecology , Environment,271018,Taian,Sh,ong) |
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| Abstract: | By using the theories and means of soil physics and fractal geometry,features of soil particle composition and soil fractal dimension under seven vegetation communities in Yimeng forestry area were studied.The results showed that: 1) In the researched area,the composition of soil particle displays the features of the typical skeletal soil in rocky mountainous areas: the content of rough sand particles in the soil under all kinds of vegetation communities is highest,fine sand particles lower,and gravel parti... |
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| Keywords: | physical properties of soil Yimeng mountainous area soil particles fractal dimension |
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