Abstract
In this study, an Agricultural Resource Geographic Information System (ARGIS) was developed using oriented‐object design and the Microsoft Visual C++ environment. The primary objective of ARGIS was to develop a field‐implementable program for site‐specific management application in the reclaiming of saline soils. ARGIS includes four main modules: GIS platform, soil sampling, geostatistics analysis, and management zones. In practice, EM38 and GPS were used as data collectors, and soil apparent electrical conductivity (ECa) were measured and received into the ARGIS program with georeferenced information first. Then, the geostatistics analysis model was implemented to describe the spatial variability and to generate the interpolated map of soil properties of interest. Finally, soil properties were selected as the input information using fuzzy‐c means unsupervised clustering that assigns field information into potential management zones. Results show that the spatial variability in soil properties was well characterised, and the classified management zones were in favourable agreement with crop yield variability patterns.
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