农药化合物随地表径流迁移的损失量与降雨量和降雨间隔期有关。
The amount of pesticide migrate was mainly influenced by the rainfall and its interval.
降雨是影响低丘红壤坡地土壤侵蚀和养分随径流迁移的一个关键因子。
Rainfall is a key factor affecting soil erosion and nutrient cycle by runoff in low hilly red soil area.
结果表明：土壤养分主要是以不溶态的形式随泥沙迁移，随径流迁移的可溶态养分很少；
Results showed that soil nutrients mainly migrated with sediment in unsoluable forms, while the amounts of soluble nutrients removed with runoff were very little.
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