| 基于EFDC模型的阿什河水环境容量季节性分析 |
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| 引用本文： | 陶亚,陈宇轩,赵喜亮,杨丽标,雷坤,周刚.基于EFDC模型的阿什河水环境容量季节性分析[J].环境工程,2017,35(7):65-69. |
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| 作者姓名： | 陶亚 陈宇轩 赵喜亮 杨丽标 雷坤 周刚 |
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| 作者单位： | 1. 中国环境科学研究院,北京,100012;2. 北京林业大学,北京,100012;3. E20环境产业研究院,北京,100195 |
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| 基金项目： | 水体污染控制与治理科技重大专项，国家自然科学基金，EU-China Environmental Sustainability Programme |
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| 摘 要： | 在阿什河流域控制单元划分、气象水文季节性划分等成果的基础上,基于EFDC模型,对阿什河水环境容量的时空变化进行了数值计算与分析。结果表明:阿什河不同控制河段的水环境容量具有明显的季节差异,各河段不同时期的水环境容量与对应流量之间的相关系数为0.883。在冰封期(11月—次年3月),阿什河由上游至下游各控制河段水环境容量为38.3~104.0 t/月;在平水期(6,9,10月)为71.3~192.2 t/月;在融雪为主的春汛时期(4,5月)为108.8~303.6 t/月,在夏汛期(7,8月)可达151.5~434.3 t/月。通过对阿什河水环境容量时空分布差异性进行分析,确定不同时期不同河段的容量总量控制标准,可对以水质改善为目标的流域水环境管理提供参考。
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| 关 键 词： | EFDC 阿什河 水环境容量 季节性特点 控制单元 |
ANALYSIS OF SEASONALITY DIFFERENCE ON WATER ENVIRONMENTAL CAPACITY OF ASHI RIVER BASED ON EFDC |
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| TAO Ya,CHEN Yu-xuan,ZHAO Xi-liang,YANG Li-biao,LEI Kun,ZHOU Gang.ANALYSIS OF SEASONALITY DIFFERENCE ON WATER ENVIRONMENTAL CAPACITY OF ASHI RIVER BASED ON EFDC[J].Environmental Engineering,2017,35(7):65-69. |
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| Authors: | TAO Ya CHEN Yu-xuan ZHAO Xi-liang YANG Li-biao LEI Kun ZHOU Gang |
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| Abstract: | Based on the EFDC model,the temporal and spatial changes of water environment capacity of Ashi River were numerically calculated and analyzed on the basis of the results of control unit division,meteorological and hydrological seasonal division of Ashe River Basin.The results showed that the water environmental capacity of the Ashi River had obvious seasonal difference,and the correlation coefficient between the water environmental capacity and the corresponding runoff was 0.883.In the ice period (Nov.to Next Mar.),the common water period (Jun.,Sep.& Oct.),the spring-flood period (Apr.to May.),the summer-flood season (Jul.to Aug.),the water environmental capacity of the Ashe River from upstream to downstream was between 38.3 ～ 104.0,71.3 ～ 192.2,108.8 ～303.6,151.5 to 434.3 t/month.By analysing the spatial and temporal difference of water environment capacity of Ashi River,the total capacity control standard of different river sections in different periods could be determined.The method could provide a feasible way for water quality improvement fine management. |
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| Keywords: | EFDC Ashi River water environmental capacity seasonal characteristics control units |
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