巢湖湖滨带生态恢复工程对暴雨径流氮磷削减效果研究  

EFFECT OF NITROGEN AND PHOSPHORUS ON RAINSTORM RUNOFF REDUCTION CUT FROM ECOLOGICAL RESTORATION ENGINEERING OF CHAOHU LAKESIDE ZONE

作　　者：匡武[1] 芮明[2] 张彦辉[1] 严云志[2] 吴添天[2] 

机构地区：[1]安徽省环境科学研究院安徽省污水处理技术研究重点实验室,安徽合肥230022 [2]安徽师范大学生命科学学院,安徽芜湖241000

出　　处：《长江流域资源与环境》2015年第11期1906-1912,共7页Resources and Environment in the Yangtze Basin

基　　金：国家水体污染控制与治理科技重大专项项目"圩堤消落区重建与生态功能恢复技术与示范"(2012ZX07103003-03)

摘　　要：从湖滨带区域环境条件及氮磷输出强度差异出发,探讨湖滨带生态恢复工程对暴雨径流氮磷削减的特征及效果,选取巢湖西北岸湖滨带生态恢复区与原生灌草区内4个典型断面开展暴雨径流氮磷削减的对比试验,研究暴雨期及暴雨间期4个断面氮磷削减效果的差异及原因。结果表明:暴雨期,断面2和断面3对暴雨径流中氮磷去除效果明显,断面2对暴雨径流中氮、磷去除率分别为69%和60%,断面3对暴雨径流中氮、磷去除率分别为60%和58%;暴雨间期,断面2区域内水体氮磷浓度平均下降67%和63%,断面3则为59%和51%;生态恢复工程去除暴雨径流中氮、磷的效果,与暴雨径流中氮、磷浓度呈显著正相关;断面2对暴雨径流氮磷削减效果最佳。The characteristics and effects reducing nitrogen and phosphorus of lakeside ecological restoration engineering were explored in this study based on the varieties of environmental conditions and N and P output intensities among the lakeside zones of Chaohu Lake.To detect the difference of N and P reduction between the periods of heavy rain and rainstorm interval,we chose 4typical sections of ecological restoration area and native shrub grass area in the northwest lakefront of Chaohu Lake.The result showed that section 2and section 3had obvious effect on N and P removal.During the heavy rain,the removal efficiency of N and P in section 2 were 69% and 60% and they were 60% and 58% in section 3respectively;During the rainstorm interval,concentrations of N and P decreased 67% and 63%respectively in section 2and 59% and 51% in section 3;The effect reducing N and P of ecological restoration engineering was significantly related with the concentrations of N and P in the rainstorm runoff;The section 2had the best effect on reducing N and P.

关 键 词：巢湖 生态恢复工程 暴雨径流 氮磷削减 

分 类 号：X524[环境科学与工程—环境工程]