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《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

卷:

第47卷

期数:

2025年第03期

页码:

526-536

栏目:

黄河流域生态保护和高质量发展专刊(上)

出版日期:

2025-05-15

文章信息/Info

Title:

Synergistic Relationship Between Runoff Control Rate and Pollutant Load Reduction Rate at Different Spatial Scales—Taking Xixian New District in Xi'an City of Shaanxi Province, China as an Example

文章编号:

1672-6561(2025)03-0526-11

作者:

王正发¹; 刘昆让²; 侯精明^2*; 刘立军²; 平 扬¹; 陈晨宇¹; 张振洲¹; 徐 浩¹; 陈 杰¹

(1.中电建生态环境集团有限公司,广东 深圳 518102; 2.西安理工大学 旱区水工程生态环境全国重点实验室,陕西 西安 710048)

Author(s):

WANG Zheng-fa¹;  LIU Kun-rang²;  HOU Jing-ming^2*;  LIU Li-jun²;  PING Yang¹;  CHEN Chen-yu¹;  ZHANG Zhen-zhou¹;  XU Hao¹;  CHEN Jie¹

(1.PowerChina Eco-environmental Group Co.,Ltd.,Shenzhen 518102,Guangdong,China; 2.State Key Laboratory of Water Engineering Ecology and Environment in Arid Area,Xi'an University of Technology,Xi'an 710048,Shaanxi,China)

关键词:

非点源污染;  空间尺度;  拟合函数;  协同系数;  SWMM模型;  径流控制;  污染物负荷

Keywords:

non-point source pollution;  spatial scale;  fitting function;  cooperation coefficient;  SWMM model;  runoff control;  pollution load

分类号:

X52

DOI:

10.19814/j.jese.2024.09049

文献标志码:

A

摘要:

以陕西省西安市西咸新区沣西新城区域及天福和园小区为例,基于暴雨洪水管理模型(SWMM)构建研究区域降雨径流及非点源污染负荷计算模型,并设计9种降雨重现期及5种雨峰系数条件下的45场降雨工况,以分析不同空间尺度下径流控制率与污染物负荷削减率的协同关系。结果表明:在不同降雨重现期的降雨强度和降水量条件下,沣西新城区域和天福和园小区的径流控制率及污染物负荷削减率均呈现递减的趋势,且均在雨峰系数为0.5时下降幅度最为显著; 在不同雨峰系数条件下,沣西新城区域和天福和园小区的径流控制率与4种污染物负荷削减率随降雨重现期的变化基本一致,其在不同空间尺度下也保持着较好的线性拟合关系,且拟合曲线具有高度的相似性,协同系数均大于0.931,表明在不同空间尺度下的径流控制率与污染物负荷削减率之间具有高度的定量协同关系。

Abstract:

Taking Fengxi new city and Tianfuheyuan community in Xixian new district of Xi'an city, Shaanxi province as examples, the calculation model of rainfall runoff and non-point source pollution load was constructed based on storm water management model(SWMM), and 45 rainfall conditions under 9 rainfall recurrence periods and 5 rainfall peak coefficients were designed; the synergistic relationships between runoff control rate and pollution load reduction rate at different spatial scales were analyzed. The results show that the runoff control rate and pollution load reduction rate of Fengxi new city and Tianfuheyuan community show a decreasing trend under the condition of rainfall intensity and precipitation in different rainfall recurrence periods, and the decrease rate is most significant when the rainfall peak coefficient is 0.5; under the condition of different rainfall peak coefficients, the runoff control rate and the load reduction rate of the four pollutants in Fengxi new city and Tianfuheyuan community have basically the same changes with the rainfall recurrence period, and the two also maintain a good linear fitting relationship at different spatial scales, and the fitting curves are highly similar, with the cooperation coefficient greater than 0.931; there is a high degree of quantitative synergistic relationship between runoff control rate and pollutant load reduction rate at different spatial scales.

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备注/Memo

备注/Memo:

收稿日期:2024-09-30; 修回日期:2025-01-04
基金项目:中国电建集团西北勘测设计研究院有限公司重大科技项目(XBY-ZDKJ-2022-9); 国家自然科学基金项目(52009104)
*通信作者:侯精明(1982-),男,河北怀安人,教授,博士研究生导师,工学博士,E-mail:jingming.hou@xaut.edu.cn。

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