Galley F A, Lioyd O L. Grass and surface soils as monitors of atmospherie metal pollution in Central Scotland[J]. Water, Air and Soil Pollution, 1985, 24:1-18.
[4]
Cambardella C A, Moorman T B, Novak J M, et al. Field-scale variability of soil properties in Central Iowa soils [J]. Soil Sci Soc Am J, 1994, 58 : 1501-1511.
Burgess T M, Webster R. Optimal interpolation and isarithmic mapping of soil properties. Ⅰ .The Semi-variogram and Punctual Kriging[J]. Journal of Soil Science, 1980, 31:315-331.
[14]
Goovaerts P. Geostatistics in soil science:State-of-the-art and perspectives[J]. Geodema, 1999, 89: 1-45.