土壤水分对数字图像估算土壤有机碳的影响

王梓阳, 贾浩, 赵钰, 张美俊, 冯美臣, 王超, 杨武德

Effects of Soil Moisture on Digital Image Estimation of Soil Organic Carbon

Wang Ziyang, Jia Hao, Zhao Yu, Zhang Meijun, Feng Meichen, Wang Chao, Yang Wude

表1 SOC和各组SMC的描述性统计

Table 1 Descriptive statistics of SOC and SMC in each group

变量 Variable 分组 Group 全距 Range 最大值 Max. 最小值 Min. 均值 Mean 标准差 SD 偏度 Skewness 峰度 Kurtosis 变异系数 CV (%) SOC (g/kg) 110.293 112.618 2.325 24.240 20.531 0.739 1.279 72.010 SMC (%) 1 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 2 4.766 4.939 0.172 1.620 0.818 0.858 4.696 50.531 3 13.565 14.871 5.036 8.895 3.110 -0.032 -0.015 35.057 4 11.388 25.008 15.610 19.665 2.910 0.130 -0.725 14.809 5 9.711 35.001 25.290 30.087 3.010 0.220 -1.352 10.035 6 10.372 45.379 35.008 40.495 3.100 -0.495 -0.999 7.664 7 14.098 56.045 41.946 49.538 2.860 -0.188 0.214 5.776