NA Lei,ZHANG Jian-jun,ZHU Jin-zhao,et al.Spatial Heterogeneity of Soil Saturated Hydraulic Conductivity from Different Land Use Types on Loess Slope in West of Shanxi Province[J].Research of Soil and Water Conservation,2008,15(03):69-73.
晋西黄土区不同土地利用类型坡面土壤饱和导水率研究
- Title:
- Spatial Heterogeneity of Soil Saturated Hydraulic Conductivity from Different Land Use Types on Loess Slope in West of Shanxi Province
- 分类号:
- F301.24;S152.72
- 摘要:
- 饱和导水率是表征土壤入渗能力的重要参数之一，对模拟土壤入渗过程、建立流域水文模型具有重要意义。通过在山西吉县森林生态系统国家野外科学观测研究站蔡家川流域的实验，采取对比分析方法，对不同土地利用类型坡面土壤入渗特征进行研究。结果表明：土壤饱和导水率与土壤非毛管孔隙度、土壤总孔隙度均呈正相关，与土壤容重呈负相关。相同坡向条件下，土壤饱和导水率坡下部>坡中部>坡上部；相同坡位条件下，土壤饱和导水率阴坡>阳坡；各地类土壤饱和导水率呈现以下变化规律：灌草坡>天然次生林>河漫滩>刺槐林>油松林>紫穗槐林>侧柏林>坡耕地>土质路面。
- Abstract:
- As one of the parameters describing soil infiltration capacity,soil saturated hydraulic conductivity (Ks) is also very important for infiltration and watershed hydrological modeling.The watershed in West of Shanxi province which is a national forestry ecology research station was analyzed by experiments,and infiltration characteristics from different types of land use were researched by contrastive analyzing.The results show that:Ks and non-capillary porosity,total porosity have significantly positive relationships,while a highly negative relationship shows between Ks and soil volumetric weight.On the condition of same exposure,Ks rises from top to base of the slope.On the condition of same slope segment,Ks is higher on apoco than that was on adretto.Ks changes obviously with the transforms of land use types.
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备注/Memo
收稿日期:2007-10-8。
基金项目:“973”国家重大基础研究课题（2002CB111503）；“十一五”科技支撑计划（2006BAD03A1204）；国家自然科学基金项目（30571530）
作者简介:纳磊（1982- ），男，宁夏银川人，在读硕士，主要从事数字水文、地理信息系统研究。E-mail：kevinwd@163.com
通讯作者:张建军（1964- ），副教授，硕士生导师，主要从事水土保持学、数字水文研究。E-mail：zhangjianjun@bjfu.edu.cn