Baseflow and Stormflow Transport of Nutrients from Mixed Agricultural Watersheds
Baseflow and Stormflow Transport of Nutrients from Mixed Agricultural Watersheds
复制标题
混合农业流域养分的基流和暴流输送
DOI：
10.2134/jeq1991.00472425002000020012x
复制
发表时间：
1991
影响因子：
2.4
通讯作者：
R. W. Keuren
中科院分区：
文献类型：
--
作者：
L. Owens;W. Edwards;R. W. Keuren
(.)在两个面积分别为123和32.1公顷的流域，包括林地、牧场和行作物，大部分N在暴雨径流中从流域转移；然而，25%到50%的N通过基流转移。以10年平均值计算，123公顷流域每年分别通过242 mm和196 mm的暴雨径流和基流输送了5.0和2.8 kg/ha的矿质氮；32公顷的流域每年分别通过144 mm和198 mm的暴雨径流和基流输送了3.6和3.2 kg/ha的矿质氮。(.)
(...) In two watersheds, 123 and 32.1 ha in size, containing woodland, pasture, and row crops, the majority of N moved from the watersheds in the storm runoff; however, 25 to 50% of the N transport was via baseflow. Using 10-yr averages, 5.0 and 2.8 kg/ha of mineral N were annually transported from the 123-ha watershed via 242 and 196 mm of storm runoff and baseflow, respectively; from the 32-ha watershed, 3.6 and 3.2 kg/ha of mineral N were annually transported via 144 and 198 mm of storm runoff and baseflow, respectively. (...)