新疆农业大学学报
新疆農業大學學報
신강농업대학학보
JOURNAL OF XINJIANG AGRICULTURAL UNIVERSITY
2015年
3期
255-258
,共4页
刘长江%张远芳%张凌凯%张苏
劉長江%張遠芳%張凌凱%張囌
류장강%장원방%장릉개%장소
罗布泊盐渍土%含水率%测试温度%离子含量
囉佈泊鹽漬土%含水率%測試溫度%離子含量
라포박염지토%함수솔%측시온도%리자함량
Lop Nor saline soil%moisture content%temperature test%ion content
选取罗布泊地区10种土为研究对象,在不同温度梯度下测定土样含水率,分析失水过程,研究测试温度对盐渍土含水率的影响.发现不同种类、不同含盐量的风干盐渍土在测试温度低于70℃时含水率变化相对不明显,测试温度高于70℃时盐分结晶水开始大量失去,含水率变化显著;同一测试温度下同一类盐渍土含盐量越大其含水率越大;建议盐渍土含水率测定温度设定在70℃.
選取囉佈泊地區10種土為研究對象,在不同溫度梯度下測定土樣含水率,分析失水過程,研究測試溫度對鹽漬土含水率的影響.髮現不同種類、不同含鹽量的風榦鹽漬土在測試溫度低于70℃時含水率變化相對不明顯,測試溫度高于70℃時鹽分結晶水開始大量失去,含水率變化顯著;同一測試溫度下同一類鹽漬土含鹽量越大其含水率越大;建議鹽漬土含水率測定溫度設定在70℃.
선취라포박지구10충토위연구대상,재불동온도제도하측정토양함수솔,분석실수과정,연구측시온도대염지토함수솔적영향.발현불동충류、불동함염량적풍간염지토재측시온도저우70℃시함수솔변화상대불명현,측시온도고우70℃시염분결정수개시대량실거,함수솔변화현저;동일측시온도하동일류염지토함염량월대기함수솔월대;건의염지토함수솔측정온도설정재70℃.
Ten kinds of soil from Lop Nor region were selected as research materils.The soil percent mois-ture were determined under different temperature and gradient,dehydration process was analyzed to re-search the effect of measuring temperature on saline soil percent moisture content.It was found that air-dried solty soil with different kinds of salt content had no obvious moisture change before 70 ℃.After 70 ℃,salt crystllization water started to greatly lose and percent moisture temperature,the greater the solt con-tent of the saline soil,the greater the percentage moisture.It was suggested that the percent moisture of sa-line soil should be 70 ℃ for determination temperature.