Constrained optimization of spatial sampling in salt contaminated coastal
farmland using EMI and continuous simulated annealing
E. Scudiero, F. Morari
Dept. Environmental Agronomy, University of Padova, Legnaro, Italy
R. Deiana, G. Cassiani
Dept. Geosciences, University of Padova, Padova, Italy
P. Teatini
Dept. Mathematical Methods and Models for Scientific
Applications, University of Padova, Padova, Italy
ABSTRACT
Coastal farmland along the Venice Lagoon catchment is threatened by saltwater
contamination posing a serious risk for agricultural activities. A research
project was recently started to understand the dynamics of salt water intrusion
and soil desertification. The spatial simulated annealing (SSA) was used to
optimize the soil sampling scheme in a 25 ha study area taking into account
sampling constraints, the field shape, and apparent electrical conductivity
(ECa) investigations as auxiliary information. The results show how the
sampling procedure is able to consider the heterogeneous nature of the site.
