摘要
采用谐波分析与定位观测的方法研究了梯田土壤水分及梯田土壤物理性质．结果表明：梯田土壤含水量平均比坡耕地高出１５．７％；梯田土壤水分变化缓和，极值出现较晚，因而，梯田增墒保水、抗旱能力强．就梯田的切土部位和填土部位来说，切土部位的含水量平均高出填土部位的２５．８％，梯田的切土部位土壤水分变化缓和，极值出现较晚，能聚集并保持更多的水分．
The soil moisture and soil physical properties of terrace field in Huangjiaercha small watershed of Xiji County,Ningxia Hui Autonomous Region were studied by the harmonic wave analysis and the fixed position observation methods.The results show that the soil moisture content in the terrace field is 15.7% higher than that in the sloping field,the soil moisture in the terrace field varies slowly and the extreme value appears later,so the soil of terrace field can better preserve water and resist drought.The soil moisture content in the cut of terrace field is averagely 25.8% higher than that in the fill,the soil moisture in the cut varies slowly,the extreme value appears later,and the cut can preserve more water as well.
出处
《北京林业大学学报》
CAS
CSCD
北大核心
1998年第3期80-82,共3页
Journal of Beijing Forestry University
基金
"八五"国家攻关课题
关键词
梯田
土壤水分
土壤物理性质
谐波分析
terrace field,soil moisture,soil physical properties harmonic wave analysis
