摘要
[目的]研究了城市二级污水灌溉对垂柳(Salix babylonica)、油松(Pinus tabulaeformis Carr.)、冬青(Ilex chinensis Sims)、红叶小檗(Berberis thunbergii cv.atropurpurea)、黑麦草(Lolium perenne L.)、早熟禾(Kenturky bluegrass)6种园林植物生长生理特性、矿质元素吸收、土壤理化性状及酶活性的影响。[方法]采用盆栽试验,设置2个灌溉处理,即对照自来水灌溉、城市二级生活污水灌溉,对6种园林植物进行不同灌溉处理。[结果]污水灌溉处理均使这6种园林植物株高、鲜重及叶面积系数增加,叶片叶绿素含量增加,净光合速率增强。这污水灌溉使植物根系活力提高,养分吸收增加,土壤速效养分含量增强。这可能是由于土壤酶活性增强,促使土壤速效养分的释放。[结论]直接用城市二级生活污水浇灌以上几种绿化植物,对绿化植物生长生理的负面影响不大,能提高土壤有效养分的含量,提供一定肥力。所以,生活污水可以有条件地应用到园林绿化植物中。
[Objective] To study the effects of urban second sewage on the growth physiological property,element uptake,soil physical and chemical properties,soil enzyme activities of landscape plants of Salix babylonica,Pinus tabulaeformis,Ilex chinensis Sims,Berberis thunbergii,Lolium perenne and Kenturky bluegrass.[Mehtod] A pot experiment was set up with two irrigation treatments：tap water as the control,urban sewage irrigation to the six landscape plants.[Result] The height,fresh weight and leaf area factor of the six landscape plant were increased under sewage irrigation,and also the leaf chlorophyll content increased,net photosynthesis rate enhanced.The root activity of the plants was increased,increase nutrient absorption,soil available nutrient content was improved.It was possible increasing soil enzyme proved release of soil available nutrients.[Conclusion] There were little negative impact on the growth of green plant physiology directly irrigating with the municipal secondary sewage,and can effectively improve the nutrient content of the soil,to provide certain fertility.So the sewage can be applied to landscaping plants conditionally.
出处
《安徽农业科学》
CAS
2014年第32期11292-11296,共5页
Journal of Anhui Agricultural Sciences
关键词
生活污水
园林植物
生长生理特性
土壤理化性状
Sewage
Landscape plants
Growth and physiology properties
Soil physical and chemical properties
