摘要
论述了在岩溶平原区对粘土进行中子仪野外标定的必要性 ;指出在不均质土体中标定时需采用掘开式取样法 ;通过标定实践 ,首次给出了岩溶区三种岩性 (亚粘土、粘土、铁锰结核粘土 )的标定方程 ,并尝试建立了含水率与中子计数率、干容重的二元回归方程。
WT5BZ]Based on field scaling by using Neutron Soil Moisture Meter(NSMM), the necessity of NSMM in situ calibration in karst terrain is proposed. Moreover,excavation sampling in a heterogeneous soil is also recommented. Soil moisture( θ )—NSMM readings( R ) equations are formulated for the first time in karst terrain according to soil types and depth, respectively. Eventually, θ R γ (bulk density) relationship is tentatively determined. [WT5HZ]
出处
《中国岩溶》
CAS
CSCD
2000年第3期218-223,共6页
Carsologica Sinica
基金
广西科技攻关项目
关键词
土壤水分
中子水分仪
野外标定法
岩溶地区
Soil moisture measurement
Neutron soil moisture meter
Field calibration
Karst terrain
