Removal of N, P from seepage and runoff by different vegetated and slope buffer strips.
作者： Jian Q. Wu , Li J. Xiong , Chen Y. Sha
DOI: 10.2166/WST.2020.237
关键词: Hydrology 、 Eutrophication 、 Water quality 、 Water pollution 、 Buffer strip 、 Environmental science 、 Surface runoff 、 Phosphorus 、 Cynodon dactylon 、 Riparian buffer
摘要: The migration of nitrogen (N) and phosphorous (P) from farmland to river not only results in fertilizer inefficiency, but also aggravates water pollution eutrophication. It is great significance construct a reasonable vegetation buffer zone between the protect quality. By using constructed strips runoff hydrometric devices, quantitative research was conducted on removal loads N P field experiment different vegetated slope strips. Results showed that rates TN, NH4 +-N, TP by were 2-3 times higher than control group. ratios seepage accounted for 73.6%, 66.9%, 73.9% total three strips, respectively. On 2% gradient with Cynodon dactylon, 36%, 34%, 37%, which 5% gradient, And 2%, 3%, 4%, 71.66%, 68.14%, 64.39%, 61.93% total, conclusion can provide basis optimization design construction riparian zone, so as non-point source effectively.
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