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DITCHES AND PONDS CAN BE THE SOURCES OR SINKS OF NON-POINT SOURCE POLLUTION: OBSERVATIONS IN AN UPLAND

Frontiers of Agricultural Science and Engineering 2023, Volume 10, Issue 4,   Pages 607-626 doi: 10.15302/J-FASE-2023517

Abstract:

As the common features of agroecosystems, ditches and ponds benefit the irrigation and drainage, asThe results showed that over the past 15 years the length of ditches in the catchment and the numberThe rate of change in nutrient concentrations in the ditches and ponds were mostly from −20% to20%, indicating ditches and ponds can be both sources and sinks for agricultural pollutants.of ditches and the overflow of ponds in upland areas.

Keywords： ditches     ponds     non-point source pollution     mountainous areas     nitrogen     phosphorus    

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DITCHES AND PONDS CAN BE THE SOURCES OR SINKS OF NON-POINT SOURCE POLLUTION: OBSERVATIONS IN AN UPLAND

Journal Article