不同淹水深度对假俭草生长的影响

Effects of Different Flooding Depth on Eremochloa ophiuroides Growth

以暖季型草坪草假俭草(平民)为研究材料,设对照,淹水2cm,淹水4cm和淹水6cm共4个处理。淹水深度为2cm时,对假俭草的生长影响较小并且恢复时间短;淹水深度为4cm时,假俭草开始出现大面积枯黄,草坪质量下降快,生长受到明显抑制,恢复时间相对较长;淹水深度为6cm时,假俭草的枯黄率高达80%,草坪质量急剧下降,生长受到严重的抑制,短时间内难以恢复。假俭草耐淹性良好,在海绵城市的下凹式绿地建设中具有良好的应用前景。

We selected Eremochloa ophiuroides as the tested material,arranged 4 kinds of treatments:control,water flooding with 2,4,6 cm.When the flooding depth was 2 cm,the growth of E.ophiuroides was less affected and the recovery time was short.When the flooding depth was 4 cm, E.ophiuroides began to turn yellow in large areas,the turf quality declined rapidly,the growth was significantly inhibited,the recovery time was relatively longer.When the flooding depth was 6 cm,the withered yellow rate of E.ophiuroides was as high as 80%,the turf quality was drastically reduced,the growth was severely inhibited,and it was difficult to recover in a short time.[Conclusion] E.ophiuroides has good application prospect in the construction of recessed green space in the sponge city.