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In coastal China, there is an urgent need to increase land for agriculture. One solution is land reclamation from coastal tidelands, but soil salinization poses a problem. Thus, there is need to map saline areas and identify appropriate management strategies. One approach is the use of digital soil mapping. At the first stage, auxiliary data such as remotely sensed multispectral imagery can be used...
In the present study, 56 soil apparent electrical conductivity(ECa) profiles, which inversed by the procedure that combine the EM38 linear model with Tikhonov regularization from aboveground EM38 measurements, were selected as the datum source of 3D spatial variability. First, the horizontal and vertical variogram were analyzed, respectively. Then, Combining the variograms, a 3-D an isotropic variogram...
Many coastal tideland areas in southern Hangzhou Gulf in Zhejiang Province of China have been successively enclosed and reclaimed for agricultural land uses under a series of reclamation projects over the past 30 years. The variability of soil salinity was considerably great and an understanding of the temporal and spatial components of soil salinity variability is essential before decisions can be...
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