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利用土壤切片和数字图像方法研究了两种土壤类型的孔隙度在 mm尺度上的垂直空间变异性。结果表明,土壤孔隙度在 mm尺度上存在较为明显的变异;不同的土壤变异性存在一定的差异;变异性与土壤孔隙度呈反向关系,与土壤深度呈正向关系;在耕作期,变异性随时间呈现一定的波动趋势。
The vertical spatial variability of porosity of two soil types on the mm scale was studied using soil slices and digital images. The results showed that there was a significant variation of soil porosity on the scale of mm. There were some differences in soil variability between different soil variability. The variability was inversely related to soil porosity and positively correlated with soil depth. During the cultivation period, variability Showing a certain degree of volatility over time.