Abstract:Groundwater quality varies not only in space but also in time. In order to analyze the spatiotemporal variety of ground water quality, the concentration of ammonium nitrogen (NH 4 N), nitrate nitrogen (NO 3 N), total nitrogen (TN) and total phosphorus (TP) in very shallow groundwater were investigated in a red-soil catchment in subtropical central China, based on a three-dimensional kriging method. The spatio-temporal analysis demonstrated that NH 4 N, NO 3 N and TP presented strong spatio-temporal autocorrela… Show more
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