雨水花园运行寿命分析与价值估算

被引:10
|
作者
郭超 [1 ]
李家科 [1 ]
马越 [2 ]
李怀恩 [1 ]
袁萌 [2 ]
姬国强 [2 ]
机构
[1] 西安理工大学省部共建西北旱区生态水利国家重点实验室
[2] 陕西省西咸新区沣西新城开发建设有限公司海绵城市技术中心
关键词
雨水花园; 寿命分析; 三阶段净化概念; P-F概念图; 价值估算;
D O I
10.13671/j.hjkxxb.2018.0289
中图分类号
TU985.12 [城乡各类型绿化地规划]; X52 [水体污染及其防治];
学科分类号
0815 ;
摘要
雨水花园作为典型的低影响(LID)开发设施之一,在径流量削减和污染物净化方面起着重要作用.为探索雨水花园运行寿命和估算其功能价值,于2011年3月—2017年10月对西安理工大学校内3个雨水花园进行了16~40场不等的降雨监测.结果表明,雨水花园的径流量削减率和污染负荷削减率呈先增大后减小的趋势.结合污染负荷削减,提出了雨水花园"三阶段净化"概念—即净化增长期、净化稳定期和净化衰弱期,简称TSP概念,并绘制了P-F概念图.排水型和入渗型雨水花园各功能价值排序为:涵养水资源>水质净化>维持生物多样性>调节气候>提供美学景观;入渗型雨水花园综合价值和单位面积价值分别是排水雨水花园的4.16倍和4.84倍.
引用
收藏
页码:4391 / 4399
页数:9
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