ISWC OpenIR  > 水保所知识产出(1956---)
孙彭成1; 高建恩1,2,3; 王显文3,4; 高哲5
Source Publication农业环境科学学报

通过6 组不同雨强的模拟降雨试验,分析了不同雨强下坡地径流中污染物输出特征,研究了不同长度的柳枝稷植被过滤带对污染
含量随雨强的增加而减小,COD 含量随雨强增加先减小后增加。3 m 长和5 m 长的柳枝稷植被过滤带都能显著削减径流中的泥沙
和总磷含量,而两种长度的削减作用间无显著差异;5 m 长过滤带还能显著削减径流中COD 含量,整个过滤带对总氮的削减效果

Other Abstract

The serious soil and water erosion in the Loess Plateau has caused non-point source pollution and shortage of water resources. In
this study, a series of simulated rainfall experiments with 6 rainfall intensities were conducted using the self-designed efficient agricultural
water filter system. The pollutant outputs under different rainfall intensities were measured. The purification efficiencies and biomass pro -
duction of the Switchgrass Vegetative Filter Strip(VFS)with different lengths were also evaluated. Results indicated that:1)with increase
in rainfall intensity, the concentrations of sediments and total phosphorus(TP)in overland flow increased, while total nitrogen(TN)concentrations
decreased. COD decreased initially but increased thereafter; 2)Both 3 m- and 5 m-length VFS significantly reduced sediment and
TP concentrations, with no significant differences between these two lengths. The COD reduction happened only in the 5 m-length VFS.
However, neither of these two lengths of VFS reduced TN concentrations; 3)Yield and quality of switchgrass in the VFS were better than
those of field-grown switchgrass. In the VFS, switchgrass closer to the runoff entrance yielded higher biomass. The dry matter yield, protein
yield and starch yield of switchgrass were respectively 29%, 53%, and 23% higher in the VFS than in the fields. The present results indicated
that switchgrass in VFS utilized soil and water resources efficiently and would have promising applications in the Loess Plateau area.

Keyword模拟降雨 柳枝稷植被过滤带 净化径流 产量品质提升
Indexed By中文核心期刊要目总览
Document Type期刊论文
3.西北农 林科技大学水利与建筑工程学院
Recommended Citation
GB/T 7714
孙彭成,高建恩,王显文,等. 柳枝稷植被过滤带拦污增效试验初步研究[J]. 农业环境科学学报,2016,35(2):314-321.
APA 孙彭成,高建恩,王显文,&高哲.(2016).柳枝稷植被过滤带拦污增效试验初步研究.农业环境科学学报,35(2),314-321.
MLA 孙彭成,et al."柳枝稷植被过滤带拦污增效试验初步研究".农业环境科学学报 35.2(2016):314-321.
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