典型小流域非点源水污染分布特征提取研究  

Extraction of Distribution Characteristics of Non-point Source Water Pollution in Typical Small Watershed

作　　者：周伟[1] Zhou Wei(Ecological Environment Engineering Department, Yangling Vocational and Technical College, Yangling 712100, China)

机构地区：[1]杨凌职业技术学院生态环境工程分院,陕西杨凌712100

出　　处：《环境科学与管理》2022年第2期61-66,共6页Environmental Science and Management

摘　　要：以改善典型小流域水资源质量为目的,针对非点源水污染问题,提出水污染分布特征提取方法。根据质量守恒定律,构建典型小流域水运动模型,在该模型下模拟典型小流域非点源水污染输移扩散过程。结合非点源水污染的输移扩散规律,计算流域各个位置的污染浓度。最终通过时间特征和空间特征数据的可视化输出,实现非点源水污染分布特征提取。将设计的特征提取方法应用到水污染治理工作中,可以将污染超标因子控制在0以下,且pH值浮动在正常范围内,即具有良好的应用效果。In order to improve the quality of water resources in typical small watersheds,a method for extracting the distribution characteristics of water pollution is proposed aiming at the problem of non-point source water pollution.According to the law of mass conservation,a water movement model of typical small watershed is constructed to simulate the transport and diffusion process of non-point source water pollution in typical small watershed.Combined with the transport and diffusion law of non-point source water pollution,the pollution concentration at each position of the basin is calculated.Finally,through the visual output of temporal and spatial feature data,the distribution characteristics of non-point source water pollution are extracted.When the designed feature extraction method is applied to water pollution control,the pollution exceeding standard factor can be controlled below 0,and the pH value fluctuates within the normal range.The method has good application effect.

关 键 词：典型小流域 非点源水污染 水污染分布 特征提取 

分 类 号：X501[环境科学与工程—环境工程]