| 豫南山区典型林地土壤入渗特征及影响因素分析 |
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| 引用本文： | 闫东锋,杨喜田. 豫南山区典型林地土壤入渗特征及影响因素分析[J]. 中国水土保持科学, 2011, 9(6): 43-50 |
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| 作者姓名： | 闫东锋 杨喜田 |
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| 作者单位： | 河南农业大学林学院,450002,郑州 |
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| 基金项目： | 国家自然科学基金“不同植被恢复策略下土壤与植物根系的协同演替机制”(30872019) |
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| 摘 要： | 为弄清典型林地不同发育阶段表层土壤入渗性能差异规律及其影响因素,通过在豫南山区开展野外调查与室内分析,模拟和分析土壤入渗过程及特征,研究土壤理化性质、地表根系结构对土壤渗透能力的影响。结果表明:1)各个林地类型土层厚度0～10 cm层的土壤渗透能力均高于10～20 cm层;初渗率、稳渗率、前30 min入渗量在各土层深度中均表现相同的趋势,即30 a马尾松针叶林>30 a麻栎阔叶林>30 a麻栎+马尾松混交林>荆条灌丛>20 a麻栎阔叶林>20 a麻栎+马尾松混交>20 a马尾松针叶林;20 a、30 a林分中,平均稳渗率最高的林分类型分别是麻栎阔叶林和马尾松针叶林,分别为3.140和4.256 mm/min。2)土壤渗透特性指标均与土壤有机质质量分数、毛管孔隙度、非毛管孔隙度、根体积密度、根表面积密度存在显著的相关关系(P<0.05);对土壤渗透能力影响最大的土壤理化性质指标和根系结构指标分别是非毛管孔隙度和根表面积密度,典型相关负荷量分别达到0.559和0.773。
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| 关 键 词： | 土壤入渗性能 土壤理化性质 根系结构 影响因素 典型相关分析 典型林地 |
Characteristics and influencing factors of soil infiltration of typical forest lands in southern mountains of Henan Province |
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| Yan Dongfeng,Yang Xitian. Characteristics and influencing factors of soil infiltration of typical forest lands in southern mountains of Henan Province[J]. Science of Soil and Water Conservation, 2011, 9(6): 43-50 |
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| Authors: | Yan Dongfeng Yang Xitian |
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| Affiliation: | Yan Dongfeng,Yang Xitian(Forestry College of Henan Agriculture University,450002,Zhengzhou,China) |
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| Abstract: | In order to ascertain soil infiltration capability and analyze its influencing factors at different developmental stages of typical forest lands in southern mountains of Henan Province,soil infiltration process was simulated to analyze their characteristics,effect of physical and chemical properties of soil and root structure on soil infiltration was studied by field sampling and laboratory analysis.The results indicate that,1)soil infiltration capacity of various types of forest land in 0-10 cm layers was ... |
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| Keywords: | soil infiltration capacity soil physical and chemical properties root structure influencing factors canonical correlation analysis typical forest lands |
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