Reduction of sediment, phosphorus and nitrogen transport on vegetated buffer strips
Reduction of sediment, phosphorus and nitrogen transport on vegetated buffer strips
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减少植被缓冲带上的沉积物、磷和氮的输送
DOI：
10.23986/afsci.72469
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发表时间：
1992
影响因子：
1.2
通讯作者：
T. Yläranta
中科院分区：
文献类型：
--
作者：
J. Uusi;T. Yläranta
表层沃茨中磷和氮的最大来源是耕作土壤。芬兰农业研究中心对10米宽的草缓冲带（CBS）对农田土壤沉积物和养分流失的影响进行了为期一年的研究。将GBS图与没有植被缓冲带（noVBS）的图进行比较。GBS使总固体、磷和氮的负荷分别平均降低了23%、6%和47%。草地缓冲带在秋季效果较好，但在春季效果不佳。春季，由于GBS的无效性，GBS小区的可溶性磷淋失量比无GBS小区高38%。
The largest source of phosphorus and nitrogen in surface waters is cultivated soils. The effects of ten-meter wide grass buffer strips (CBS) on sediment and nutrient losses from cropped soil plots have been studied forone year at the Agricultural Research Centre in Finland. The GBS plots were compared to plots without vegetated buffer strips (noVBS). The GBSs decreased loads of total solids, phosphorus and nitrogen by an average of 23, 6 and 47%, respectively. The grass buffer strips were effective in autumn but not in spring. Thirty-eight percent more soluble phosphate phosphorus was leached from the GBS plots than from the plots without GBSs, because of their inefficiency in spring.