• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文OA文献 >Hysteretic Response of Solutes and Turbidity at the Event Scale Across Forested Tropical Montane Watersheds
【2h】

Hysteretic Response of Solutes and Turbidity at the Event Scale Across Forested Tropical Montane Watersheds

机译：森林热带山地流域事件规模的溶质和浊度的滞后响应

代理获取
本网站仅为用户提供外文OA文献查询和代理获取服务，本网站没有原文。下单后我们将采用程序或人工为您竭诚获取高质量的原文，但由于OA文献来源多样且变更频繁，仍可能出现获取不到、文献不完整或与标题不符等情况，如果获取不到我们将提供退款服务。请知悉。
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Concentration-discharge relationships are a key tool for understanding the sources and transport of material from watersheds to fluvial networks. Storm events in particular provide insight into variability in the sources of solutes and sediment within watersheds, and the hydrologic pathways that connect hillslope to stream channel. Here we examine high-frequency sensor-based specific conductance and turbidity data from multiple storm events across two watersheds (Quebrada Sonadora and Rio Icacos) with different lithology in the Luquillo Mountains of Puerto Rico, a forested tropical ecosystem. Our analyses include Hurricane Maria, a category 5 hurricane. To analyze hysteresis, we used a recently developed set of metrics to describe and quantify storm events including the hysteresis index (HI), which describes the directionality of hysteresis loops, and the flushing index (FI), which can be used to infer whether the mobilization of material is source or transport limited. We also examine the role of antecedent discharge to predict hysteretic behavior during storms. Overall, specific conductance and turbidity showed contrasting responses to storms. The hysteretic behavior of specific conductance was similar across sites, displaying clockwise hysteresis and a negative FI indicating proximal sources of solutes and consistent source limitation. In contrast, the directionality of turbidity hysteresis was significantly different between watersheds, although both had strong flushing behavior indicative of transport limitation. Overall, models that included antecedent discharge did not perform any better than models with peak discharge alone, suggesting that the magnitude and trajectory of an individual event was the strongest driver of material flux and hysteretic behavior. Hurricane Maria produced unique hysteresis metrics within both watersheds, indicating a distinctive response to this major hydrological event. The similarity in response of specific conductance to storms suggests that solute sources and pathways are similar in the two watersheds. The divergence in behavior for turbidity suggests that sources and pathways of particulate matter vary between the two watersheds. The use of high-frequency sensor data allows the quantification of storm events while index-based metrics of hysteresis allow for the direct comparison of complex storm events across a heterogeneous landscape and variable flow conditions.
机译：集中放电关系是了解从流域到河流网络的资料来源和材料的关键工具。 Storm Eventive尤其在流域内的溶质和沉积物的可变异和将山坡连接到流通道的水文途径中提供深入的事件。在这里，我们在森林热带生态系统的Luquillo Mountains的不同岩性中，从两个流域（Qubrada Sonadora和Rio Icacos）的多种风暴事件中检查了高频传感器的特定电导和浊度数据。我们的分析包括飓风玛丽亚，5类飓风。为了分析滞后，我们使用最近开发的一组指标来描述和量化包括滞后指数（HI）的风暴事件，该滞后指数（HI）描述了磁滞回路的方向性，并且潮红指数（FI），可以用于推断是否动员材料是来源或运输有限公司。我们还研究了前进的放电在风暴期间预测滞后行为的作用。总体而言，具体的电导和浊度显示对暴风雨的对比反应。特定电导的滞后行为在网站上具有相似，显示顺时针滞后和负面文件，指示近端的溶质源和一致的源极限。相比之下，流域之间的浊度滞后的方向性显着差异，尽管两者都具有强烈的冲洗行为，表明运输限制。总的来说，包括先前放电的模型并没有比单独排放峰值放电的模型更好地表现出更好的模型，这表明个人事件的幅度和轨迹是材料通量和滞后行为的最强驱动因素。飓风玛丽亚在流域中产生了独特的滞后指标，表明对这一主要水文事件的独特反应。对暴风雨的特定电导响应的相似性表明，两种流域的溶质来源和途径相似。浊度行为的分歧表明，颗粒物质的来源和途径在两个流域之间变化。使用高频传感器数据允许定量风暴事件，而基于索引的滞后度量允许在异构景观和可变流动条件下直接比较复杂的风暴事件。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
代理获取

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