中文说明：在绘制土壤水分随深度变化时，通常需要绘制倒挂图，即x轴（土壤含水量）在上面，y轴（土层深度）在左边，同时，需要绘制误差棒，因此借助matlab绘制时，需要掌握一定技巧。具体程序如下：
English Description：
When drawing the change of soil moisture with depth, we usually need to draw an inverted chart, that is, the x-axis (soil moisture content) is on the top, the y-axis (soil depth) is on the left, and at the same time, we need to draw error bars, so we need to master certain skills when drawing with MATLAB. The specific procedures are as follows: