利用土壤切片及数字图像研究低丘缓坡不同部位土壤的孔隙结构特征

Characteristics of Pore Structure at Various Places of a Low-hill Using the Techniques of Soil Sections and Digital Images

利用土壤切片及数字图像技术 ,初步研究了葡萄种植园低丘缓坡不同部位 (坡顶、坡中和坡底 )土壤的孔隙结构特征。结果表明 :孔隙面积随着深度的增加而减小 ,孔隙构成以直径小于 1mm的小孔隙为主 ,且随着深度增加小孔隙比重增加 ,不同部位孔隙结构具有一定的差异 。

We primarily studied the characteristics of soil Pore strcture at various slope places of a vineyard in a low hill area by using the techniques of soil sections and digital images,and the results showed that:pore areas decreased with the increase of soil depth,the diameter of the dominating pores were smaller than 1 mm,whose proportion increased with the increase of soil depth,differences existed in pore structure among soil at various locations of the low-hill,and those results also showed the necessity of countermeasures for water and soil conservation in these vineyards.