Within a 300 x 600 m
complex heterogeneous sodic grassland two techniques were compared for
assessing soil salinity. The standard technique is based on repeated field
instrumental measurements at 420 points. The alternative technique was
performed with the use of numerical simulation of salt accumulation carried out
on 3 profiles. These profiles have been selected as representatives of the
distinct classes, or map strata of salt accumulation, distinguished with
preliminary statistical clustering of the instrumental measuring points.
Simulated values were extrapolated for the 3 strata distinguished. The maps
obtained with the two techniques were statistically correlated. The use of
numerical simulation is cost-effective. Further improvements are expected from
a combination of improved numerical simulation and utilization of more strata.
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Agrokémia és Talajtan
2021 Volume 70
Magyar Tudományos Akadémia
H-1051 Budapest, Hungary, Széchenyi István tér 9.
H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.