Results showed that available K and (NO3)^(-1) content were higher in surface runoff in slope cropland and intercrop land between crop and forestry than those in fallow land, intercrop land between forest and grass and afforestation land.
Results showed that available K and (NO3)^(-1) content were higher in surface runoff in slope cropland and intercrop land between crop and forestry than those in fallow land, intercrop land between forest and grass and afforestation land.
研究结果表明：(1)坡耕地及农林间作下地表径流中的有效钾和硝态氮含量高于撂荒荒坡、林草间作和造林林地。