期刊论文

中文

水土保持学报

1009-2242

2015

29

3

56-61

10.13870/j.cnki.stbcxb.2015.03.012

国家自然科学基金项目（41001125） 湖北省自然科学基金重点项目（2015CFAl41）

本校为第一机构

山地土壤入渗性能研究是评价植被涵养水源和保持水土功能的基础。利用盘式张力入渗仪,通过设置3种负压(-0.49 kPa,-0.69 kPa和-0.98 kPa),分析不同负压条件下三峡山地各垂直带土壤的入渗过程,比较不同类型山地土壤的入渗性能和常用入渗模型的适宜性。结果表明,不同垂直带间土壤腐殖质层与淋溶淀积层入渗性能的差异呈现不同规律。腐殖质层的入渗率表现为,亚高山温性阔叶林棕壤>中山针阔混交林黄棕壤>低山暖性针叶林黄壤,针叶林黄壤饱和导水率仅为3.84 mm/min,不足阔叶林棕壤的8%。腐殖质层入渗主要受土壤结构的影响,疏松多孔的棕壤表层的入渗能力比风化率低、质地粗的黄壤表层更强。淋溶淀积层的...

Soil infiltration is one of the most basic important parameters for evaluating soil and water conser- vation function of vegetation. By using tension infiltrometer under 3 levels of negative pressure（-0.49 kPa, -0.69 kPa, and -0.98 kPa）, we observed soil infiltration process in different altitudinal mountain belts in the Three Gorges Reservoir Area. The infiltration characteristics of different types of mountain soils were compared and suitability of commonly used infiltration models was analyzed. The results indicated that the variance of in...