Balancing Upland Green Infrastructure and Stream Restoration to Recover Urban Stormwater and Nitrate Load Retention
Balancing Upland Green Infrastructure and Stream Restoration to Recover Urban Stormwater and Nitrate Load Retention
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平衡高地绿色基础设施和河流恢复以恢复城市雨水和硝酸盐负荷保留
DOI：
10.1016/j.jhydrol.2023.130364
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发表时间：
2023
影响因子：
6.4
通讯作者：
Groffman, Peter M.
中科院分区：
文献类型：
--
作者：
Zhang, Ruoyu;Band, Lawrence E.;Groffman, Peter M.
由于土地覆盖从植被变为不透水区域，城市流域经历了生态系统退化。这种转变导致暴雨径流增加、河道侵蚀和沉积，以及投入增加和生态系统养分保留减少。生态系统恢复实践，包括陆地和水生低影响开发（LID），正在全球城市流域广泛实施。一个主要问题是如何实现“绿色”和“灰色”基础设施的最佳平衡，以将生态水文行为转向城市化前的条件。传统的雨水工程通常通过临时储存（滞留）和释放雨水来控制径流，而 LID 设计旨在通过渗透降水和蒸散的结合来减少径流，同时促进养分的生物地球化学保留。这些做法通常与河流和河岸恢复相结合，以增加养分保留并减少河流负荷。在这项研究中，我们模拟了三种类型的陆地 LID 和绿色基础设施 (GI) 对流域径流和当地溪流硝酸盐 (NO3–) 负荷的潜在影响，与滞留储存效应无关。处理措施包括增加树冠、路边生物洼地植被和透水路面。然后，我们评估了这些做法对河流恢复所提供的 NO3 负荷减少有效性的单独和交互影响，这受到 LID 和 GI 引起的径流和养分负荷变化的影响。城市重新造林在减少暴风雨和养分输出方面提供了最高的效率，而生物洼地和渗透性路面则出乎意料地增加了河道内的NO3负荷。仅通过 LID/GI 对先前开发的流域进行改造可能无法充分缓解雨水和营养物负荷，应与额外的灰色基础设施相平衡，例如蓄水池、雨水蓄水池和下水道系统升级。
Urban watersheds have experienced ecosystem degradation due to land cover change from vegetation to impervious areas. This transformation results in increased stormwater runoff, stream channel erosion and sedimentation, and both increased inputs and reduced ecosystem retention of nutrients. Ecosystem restoration practices, including terrestrial and aquatic low impact development (LID), are becoming widely implemented in urban watersheds globally. A major question is how “green” and “grey” infrastructure can be optimally balanced to shift ecohydrological behavior towards pre-urbanization conditions. Traditional stormwater engineering typically controls runoff by temporary storage (detention) and release of stormwater, while LID designs are developed to reduce runoff by a combination of infiltrating precipitation and evapotranspiration, while promoting biogeochemical retention of nutrients. These practices are often combined with stream and riparian restoration that increases nutrient retention and reduces in-stream loads. In this study, we simulated the potential impact of three types of terrestrial LID and green infrastructure (GI) on watershed runoff and nitrate (NO3–) loading to local streams, independent of detention storage effects. The treatments included increased tree canopy, vegetated roadside bioswales, and permeable pavement. We then evaluated the individual and interactive impacts of these practices on the effectiveness of NO3–load reduction provided by stream restoration, which is affected by the altered runoff and nutrient loading caused by the LID and GI. Urban reforestation provided the highest effectiveness in terms of reducing stormflow and nutrient export, while bioswales and permeable pavement unexpectedly increased in-stream NO3–loads. Retrofit of the previously developed watershed by LID/GI alone may not provide sufficient mitigation in stormwater and nutrient loads, and should be balanced with additional grey infrastructure, such as detention ponds, rain cisterns, and sewer system upgrades.
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上游河流形态和河岸土地利用推翻了当地恢复对生态状况评估的影响
影响因子：
2.6
作者：
A. Lorenz;C. Feld
通讯作者：
C. Feld
考虑绿色基础设施的协同效益
DOI：
--
发表时间：
2017
期刊：
影响因子：
--
作者：
Matthew Jones;J. McLaughlin;S. Mehrotra
通讯作者：
S. Mehrotra
影响因子：
5.4
作者：
Laurence Lin;J. Webster;T. Hwang;L. Band
通讯作者：
Laurence Lin;J. Webster;T. Hwang;L. Band
影响因子：
3.4
作者：
Hoghooghi, Nahal;Golden, Heather E.;Pettus, Paul P.
通讯作者：
Pettus, Paul P.
影响因子：
0.9
作者：
Bhaskar, Aditi S.;Welty, Claire
通讯作者：
Welty, Claire