[Spatial variability of soils in the contact zone between the Candesti-platform and Arges river flood plain at Leordeni-Arges]
1997
Paltineanu, Cr. (ICPP Maracineni, Pitesti (Romania)) | Hianu, C (OSPA, Pitesti (Romania))
In the contact zone between the Candesti-Platforma and Arges-river Flood Plain at Leordeni, district Arges, the main soil properties represented by the clay content, bulk density, humus content, and wilting point were studied along a 3 km transect with 60 equally-spaced soil profiles. Semivariance and coefficient of autocorrelation for one soil property as well as the cross-semivariance and cross-correlation coefficient for two soil properties illustrated and quantified the spatial variability structure of the soils investigated and were, beside other complementary criteria, a support in separating the soil-type areas. It was found that the number of lags between measurements does not have to exceed 1/5-1/3 of the transect length in the geostatistics calculation. The geostatistical range calculated was about 250 m for most of the soil properties studied, while the auto-correlation length attained as much as half of this value.
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