• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>World environmental and water resources congress >Urban and Agricultural Nutrient Event Mean Concentration and Export Load Data for Watershed Quality Assessment Models
【24h】

Urban and Agricultural Nutrient Event Mean Concentration and Export Load Data for Watershed Quality Assessment Models

机译：流域质量评估模型的城市和农业营养事件平均浓度和出口负荷数据

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

One of the most challenging inputs for the models that estimate pollutant load in watershed outlets, is quantifying the values of nutrient event mean concentration (EMC) or the export load released from different landuses. Many studies have measured pollutant loads from agricultural or urban landuses and majority of them have focused on total suspended solids (TSS), total nitrogen (TN)，and total phosphorus (TP) pollutant loading into watershed in a specific region. In some cases, the EMC or export load values reported in each of the studies have a wide range of magnitude for a specific landuse. The sources of the difference in the pollutant loading values for each of the landuses could be due to the region and physical characteristics (e.g. slope and soil type) of watershed, methods of measuring EMCs and loads, the number of samples taken from watershed outlet and rainfall intensity. This paper summarizes and combines some published EMC and load values separately categorized for urban and agricultural lanuses. Then, for each of the landuses, a box and whisker or statistic plots were created using median EMC and load values, which are reported in different literatures. Because the results of this study are supposed to be used as an input for Kentucky Nutrient Model (KYNM), the studies that report EMC and load values in State of Kentucky were incorporated in the data as much as possible. The provided range of EMC and load values could be very useful for the users of water quality models who need to have a holistic idea of pollutant magnitude released from each landuse in watershed outlets.
机译：估算流域出口污染物负荷的模型中最具挑战性的输入之一是量化营养事件平均浓度（EMC）或不同土地利用释放的出口负荷的值。许多研究测量了农业或城市土地利用中的污染物负荷，其中大部分集中在特定区域内流域的总悬浮固体（TSS），总氮（TN）和总磷（TP）污染物负荷。在某些情况下，每项研究报告的EMC或出口负荷值在特定土地用途上的幅度范围都很大。每个土地利用的污染物负荷值差异的根源可能是由于流域的区域和物理特征（例如坡度和土壤类型），EMC和负荷的测量方法，从流域出口采集的样本数量以及降雨强度。本文总结并合并了一些已发布的针对城市和农业用电的EMC和负载值。然后，对于每个土地利用，使用中值EMC和负载值创建了箱形图和晶须图或统计图，这在不同的文献中都有报道。由于本研究的结果应该用作肯塔基州营养模型（KYNM）的输入，因此报告肯塔基州的EMC和负荷值的研究应尽可能地纳入数据中。所提供的EMC和负载值范围对于水质模型的用户非常有用，他们需要全面了解从分水岭出水口每个土地用途释放的污染物量级。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号