| 鲁中山区采取不同生态修复措施时的土壤粒径分形与孔隙结构特征 |
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| 引用本文： | 王丽,刘霞,张光灿,刘信儒,郭静,袁利.鲁中山区采取不同生态修复措施时的土壤粒径分形与孔隙结构特征[J].中国水土保持科学,2007,5(2):73-80. |
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| 作者姓名： | 王丽 刘霞 张光灿 刘信儒 郭静 袁利 |
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| 作者单位： | 1. 山东农业大学水土保持系,271018,山东泰安
2. 淄博市淄川区水务局,255100,山东淄川 |
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| 基金项目： | 山东水利厅资助项目;水利部淮河水利委员会资助项目 |
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| 摘 要： | 为探索水土保持生态修复工程对土壤物理性质的改良效应,运用分形学理论与方法,研究鲁中山区4种生态修复措施对土壤颗粒组成和孔隙结构的影响。结果表明:1)各种修复措施对土壤水文物理性状都有明显改善作用。具体表现在,土壤中细粒物质含量提高,砂粒含量降低,而土壤分形维数增加,孔隙数量(尤其是毛管孔隙数量明显)增多,土壤密度减小。2)4种修复措施对土壤物理性状的改善程度不同,改良作用最大的是荒坡造林,其次是疏林补植和梯田封育,最小的是荒坡封禁。3)土壤分形维数与细粒物质含量、孔隙数量、土壤密度之间都存在一定的相关性,在作为综合指标定量描述土壤水文物理性状方面具有较大研究价值。
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| 关 键 词： | 生态修复 土壤粒径 分形维数 土壤孔隙 土壤密度 |
| 修稿时间： | 2006-09-08 |
Fractal features of soil particles size distribution and physical property under different measures of ecological restoration on rocky mountainous area in the middle of Shandong Province |
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| Wang Li,Liu Xia,Zhang Guangcan,Liu Xinru,Guo Jing,Yuan Li.Fractal features of soil particles size distribution and physical property under different measures of ecological restoration on rocky mountainous area in the middle of Shandong Province[J].Science of Soil and Water Conservation,2007,5(2):73-80. |
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| Authors: | Wang Li Liu Xia Zhang Guangcan Liu Xinru Guo Jing Yuan Li |
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| Institution: | 1.Department of Soil and Water Conservation,Shandong Agricultural University,271018,Tai'an;2.Water Resources Department of Zichuan,255100,Zichuan: Shandong,China |
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| Abstract: | For exploring the improved effect of the ecological restoration project to soil physical property,the effects of 4 different measures of ecological restoration on composition of soil particles and physical property of soil are studied.The result showed that: 1) all kind of measures can improve the hydrological and physical property of soil,which include that: the content of fine-grained soil particles was increased obviously,sand content is lower,both soil fractal dimension and the number of soil porosity(especially the number of capillary porosity) were raised,and the soil bulk density was lower;2) the improved effect of 4 kinds of measures are different,the afforesting on wild slope is the highest,both supplement planting on open forest land and the closing terrace slope for re-vegetation are higher,but the closing wild slope for re-vegetation is the lowest.3) there is correlativity obviously between the soil fractal dimension and the content of fine-grained soil particles,the number of soil porosity and soil bulk density.The soil fractal dimension is valuable for research,as an integrated index that describes the hydrological and physical property. |
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| Keywords: | ecological restoration soil particle size fractal dimension soil porosity soil bulk density |
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