CAJ | 학술논문

[目的]研究西藏地区代表性土壤的渗透性能.[方法]从拉萨、日喀则、林芝、山南、阿里等地区采集黏土与砂壤土,测定其基本性质和渗透性能.[结果]西藏3地区土壤的渗透系数变化为 0.93×10~(-3)～7.82×10~(-6) cm/s;土壤渗透性能存在着空间上的变异性,土壤含水量对土壤渗透性能有极其显著的影响;土壤容重、孔隙度及孔隙类型和土壤黏粒含量均对渗透性能有不同程度的影响.[结论]渗透系数的大小与含水量、土的结构、颗粒组成、密实程度等多种因素有关.
[목적]연구서장지구대표성토양적삼투성능.[방법]종랍살、일객칙、림지、산남、아리등지구채집점토여사양토,측정기기본성질화삼투성능.[결과]서장3지구토양적삼투계수변화위 0.93×10~(-3)～7.82×10~(-6) cm/s;토양삼투성능존재착공간상적변이성,토양함수량대토양삼투성능유겁기현저적영향;토양용중、공극도급공극류형화토양점립함량균대삼투성능유불동정도적영향.[결론]삼투계수적대소여함수량、토적결구、과립조성、밀실정도등다충인소유관.
[Objective]The research aimed to study the soil permeability coefficient in Tibet.[Method]Ball clay and sandy loam samples were collected from Lhasa, Shigatse,Nyingchi,Shannan,Ali in Tibet.And the basic properties,permeabilities of them were determined.[Result]The results showed that soil subgroup hydraulic conductivity changed between 0.93×10~(-3)-7.82×10~(-6) cm/s in 3 areas of Tibet. Soil permeability had changeability in spatial,and soil moisture content had extremely remarkable influence on soil permeability performance.Soil bulk specific gravity, porosity, porosity type and soil clay content had varying degree influence on penetrating quality.[Conclusion]Soil permeability had relationship with many factors such as water content, soil stucture, grain composition and compaction rate.