土壤含水量和土壤紧实度对土壤圆锥指数值影响的试验研究  

Test on Effect of Soil Moisture and Density on Soil Cone Indexes

作　　者：张立彬[1] 

机构地区：[1]浙江农业大学

出　　处：《农业工程学报》1993年第2期41-44,共4页Transactions of the Chinese Society of Agricultural Engineering

摘　　要：分别研究了两种土壤的含水量、土壤紧实度对土壤圆锥指数值的影响,并给出了两种土壤类型的圆锥指数、土壤含水量和土壤紧实度之间关系的数学模型,两个模型都达统计极显著水平,复相关系数分别达到0.960和0.941。The paper is on the effect of soil moisture and soil density of two kinds of soil on soil cone index. The conclusions are as following. The cone index curve is hump-shaped with the variation of soil moisture. The maximum moisture at which the maximum soil cone index occur is nearly constant for a kind of soil, but for different soils the value is varied , with the increase of soil density, the relevant maximum cone index will increase, and the relation between them is one of power function:C1=0. 00939p7.386 ,r=0. 999;The relation between cone index and soil moisture,soil density is one of power f unction :CI=a1 pa2 wa3,and the statistical constant, will Vary for different kinds of soil.

关 键 词：圆锥指数 土壤含水量 土壤紧实度 

分 类 号：S152.7[农业科学—土壤学]