根据改进的输出系数方法,对中国山东省图海河流域的污染负载估计和影响因素分析
Xi Wang1,2, Xiaoyu Zhang3, Xiaomei Gao1,2
1School of Water Conservancy and Environment, University of Jinan, Jinan, 250022, China.
概括
估计图海河的污染负载对于水质标准至关重要. 化学氧气需求 (COD) 是主要问题,由农村生活,农业和排水驱动,人均GDP是最重要的影响因素.
科学领域:
- 环境科学 环境科学
- 水资源管理 水资源管理
- 生态生态学 生态生态学
背景情况:
- 评估水质对于流域管理至关重要.
- 图海河需要污染负载估计,以实现有效的水质标准.
- 了解污染源和影响因素是缓解策略的关键.
研究的目的:
- 为了估计图海河流域主要污染物的总污染负载.
- 识别和分析导致河流污染的主要因素.
- 为图海河水质标准的制定提供信息.
主要方法:
- 使用改进的输出系数方法来估计污染负载.
- 应用了STIRPAT (对人口,财富和技术的回归的随机影响) 模型来分析影响因素.
- 总 (TP),化学氧气需求 (COD) 和氨 (AN) 的量化预计污染负载.
主要成果:
- 预计2021年的点源污染负载为:TP (3937.22),COD (335,523.25),AN (13,946.92). 据报道,该地区的污染总量为1.
- 化学氧气需求 (COD) 是最重要的污染问题.
- 确定的主要污染贡献者是农村分散的生活,大规模畜牧/家禽养殖和表面下水.
- 人均国内生产总值是最有影响力的因素,其次是耕地面积;城市化速度的影响最小.
结论:
- 污染负载估计为图海河水质标准提供了科学基础.
- 解决农村污染源,农业实践和排水问题对于改善水质至关重要.
- 经济因素,特别是人均国内生产总值,在推动污染水平方面发挥着重要作用,需要综合管理方法.
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