The theory sampling number was presented on the base of the spatial pattern. Several sampling methods were compared and the results showed that the parallel sampling method is the best.
在空间格局研究的基础上提出了理论抽样数，并通过不同抽样方式的精度比较，得出平行线抽样方式最佳。
Spatial variation pattern of water movement parameters in unsaturated soil is the base of parameter estimation in a large area.
非饱和土壤水分运动参数的空间变异规律是大区域参数估计的基础。
Spatial variation pattern of water movement parameters in unsaturated soil is the base of parameter estimation in a large area.
非饱和土壤水分运动参数的空间变异规律是大区域参数估计的基础。
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