To understand the profile variability of soil properties of check dam and its possibility of engineering control over non-point source pollution,we used classical statistics to characterize the profile change of soil properties of a 5.20 m depth soil profile in the typical check dam on the Loess Plateau.The roles of check dam as organic carbon storage and available nutrients storage were discussed.The results showed that: ① The bulk density and sand content of dam-head were lower than dam-tail,while,soil wa...
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