| 不同植物根系对土壤抗冲性的影响 |
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| 引用本文： | 徐文远,王晓春,刘德海. 不同植物根系对土壤抗冲性的影响[J]. 安徽农业科学, 2011, 39(4): 2155-2157,2160 |
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| 作者姓名： | 徐文远 王晓春 刘德海 |
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| 作者单位： | 徐文远,刘德海(东北林业大学土木工程学院,黑龙江哈尔滨,150040);王晓春(国道G111公路工程建设指挥部,黑龙江哈尔滨,150040) |
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| 基金项目： | 黑龙江省交通重点科技计划项目 |
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| 摘 要： | [目的]研究不同植物根系对土壤抗冲性的影响。[方法]采用改进的原状土冲刷水槽法,探讨了不同雨量、不同坡度下,4种植物的土壤抗冲性与根系生物量的关系。[结果]在小雨冲刷下,不同植物上层土壤的抗冲性和根系生物量随着坡度的增大而增强,而下层土壤表现出相反趋势;中雨冲刷下,丁香对上层土壤抗冲性的影响较大,而丁香、红瑞木下层土壤的抗冲性和根系生物量随着坡度的增加而减小;大雨冲刷下,不同植物上层土壤的抗冲性基本上随着坡度的增大逐渐增强,而根系生物量呈相反趋势,在下层土壤中其表现规律不一致。另外,土壤抗冲性与根系生物量密切相关,中雨、大雨冲刷下土壤抗冲指数与根系生物量的相关性明显高于小雨冲刷下。[结论]不同植物根系对土壤抗冲性有明显影响,可为水土流失区的植被修复提供科学依据。
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| 关 键 词： | 根系 土壤抗冲性 生物量 |
Effect of Different Plant Roots on Soil Anti-scourbility |
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| XU Yuan-wen et al. Effect of Different Plant Roots on Soil Anti-scourbility[J]. Journal of Anhui Agricultural Sciences, 2011, 39(4): 2155-2157,2160 |
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| Authors: | XU Yuan-wen et al |
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| Affiliation: | XU Yuan-wen et al(School of Civil Engineering,Northeast Forestry University,Harbin,Heilongjiang 150040) |
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| Abstract: | [Objective] The effect of plant roots on soil anti-scourbility was studied.[Method] By means of flume method for original soil,the relationship between soil anti-scourbility and root biomass was studied under different precipitations and slopes.[Result] Affected by light rain,surface soil anti-scourbility and root biomass enhanced with the increase of slope,with the contrary trend in subsoil;under moderate rain,clove had greater effect on surface soil anti-scourbility,while the subsoil anti-scourbility and ... |
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| Keywords: | Roots Soil anti-scourbility Biomass |
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