Nitrogen balance in small river basins under agricultural and forestry use

Kudeyarov, V.N.; Bashkin, V.N.

Nitrogen balance in small river basins under agricultural and forestry use

1980

Kudeyarov, V.N. | Bashkin, V.N. (Institute of Agrochemistry and Soil Science, Puschino (USSR))

The N balance has been studied in detail in the basins of small rivers under agricultural management and forest use. The N content of the watershed territory of large forests was found to be practically balanced. In the river basin where the land was intensively farmed for 10 yr, N input increased five times through mineral fertilizers, and one-and-a-half times through organic fertilizers. Consequently, the amount of N returned to the atmosphere as a result of denitrification increased by one-and-a-half times, and that leached into the ground water, increased from 0.8 to 6.5 mg 1('-1) N.

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