将浙江省海涂盐土的76个土样,分别测定了25℃时的电导率(y)和烘干全盐(x),进行数理统计后得出下列实验式; 1.砂涂烘干全盐小于0.3% n=201gy=0.6835+1.2407 1gx r=0.98 2.砂涂烘干全盐大于0.3% n=221gy=0.5304+0.9971 1gx r=0.99 3.粘涂烘干全盐0.3-0.7% n=71gy=0.5688+1.1185 1gx r=0.97 4.粘涂烘干全盐0.71-1.58% n=271gy=0.5476+0.8484 1gx r=0.98