植物生长对生物滞留池水文效应影响的试验研究

Experimental Study on the Hydrologic Performance of Bioretention under Different Plant Conditions

通过模拟生物滞留池的入流和出流过程,研究了植物生长对生物滞留池主要水文参数的影响情况。结果表明,当降雨间歇期较长时,种植植物的相比不种植物的生物滞留池来说,有淹没区的主要水文参数均呈现上升趋势;而无淹没区的除径流总量控制率外均呈现下降趋势。植物的生长对提高生物滞留池水文效应具有积极作用。

The effects of plant growth on the main hydrological parameters of bioretention were studied by simulating the inflow and outflow processes of bioretention.The results showed that when the intermittent period of rainfall was long,the main hydrological parameters of the bioretention with inundation area showed an upward trend for the bioretention with plants compared with the bioretention with no plants,while for the bioretention with no inundation area,all parameters except runoff total control rate showed a downward trend.Plant growth has a positive effect on increasing the hydrological effect of the bioretention.