Wetlands in urban ecosystems provide significant environmental benefits. In the present study, the concept of urban constructed wetland development is studied from the viewpoint of urban planning with dynamic water level orifice setting controller. A two-step modelling procedure is carried out: (1) development of a hybrid model, by coupling a well-established two-dimensional hydrodynamic model (International River Interface Cooperative, iRIC) with a one-dimensional physically-based, distributed-parameter model (Storm Water Management Model, SWMM), to compute and map flood scenarios and to identify the flood-prone areas; and (2) use of SWMM to simulate the water inflow to the proposed constructed wetland, which acts as a cushion for storing excess flood water. The proposed methodology is implemented on the Jahangirpuri drain catchment located in Delhi, India. Results show that the hybrid model is effective, and the simulations are observed to be in good agreement with the recorded data, which assist in detecting the flood-prone areas. Further, an estimation of the impact of the proposed constructed wetland on catchment hydrology indicates an overall reduction of 23% in flooding adjacent to the channel with a significant reduction in backflow as well as water depth in the drain. The flapgate at the outlet of the wetland helps in maintaining the desired water depth in the wetland. The outcomes of this study will assist the hydrologists and administrators in urban stormwater management and planning to mitigate the impact of floods in urban watersheds.

城市生态系统中的湿地可带来巨大的环境效益。在本研究中，从具有动态水位孔设置控制器的城市规划的角度研究了城市人工湿地发展的概念。进行两步建模程序：（1）通过将完善的二维水动力模型（国际河流界面合作社，iRIC）与一维基于物理的分布式参数耦合来开发混合模型。模型（暴雨水管理模型，SWMM），以计算和绘制洪水情境图并确定易发生洪水的地区；（2）使用SWMMH模拟流入拟建人工湿地的水量，该湿地充当存储多余洪水的缓冲垫。拟议的方法是在印度德里的Jahangirpuri排水集水区实施的。结果表明，该混合模型是有效的，并且仿真结果与所记录的数据吻合良好，有助于检测易发洪水区域。此外，对拟建人工湿地对流域水文学的影响的估算表明，与河道相邻的洪水总体减少了23％，同时回流和排水口的水深也明显减少。湿地出口处的挡板有助于保持湿地中所需的水深。这项研究的结果将帮助水文学家和管理人员进行城市雨水管理和规划，以减轻洪水对城市流域的影响。结果表明，该混合模型是有效的，并且仿真结果与所记录的数据吻合良好，有助于检测易发洪水区域。此外，对拟建人工湿地对流域水文学的影响的估算表明，与河道相邻的洪水总体减少了23％，同时回流和排水口的水深也明显减少。湿地出口处的挡板有助于保持湿地中所需的水深。这项研究的结果将帮助水文学家和管理人员进行城市雨水管理和规划，以减轻洪水对城市流域的影响。结果表明，该混合模型是有效的，并且仿真结果与所记录的数据非常吻合，有助于检测易发洪水区域。此外，对拟建人工湿地对流域水文学的影响的估算表明，与河道相邻的洪水总体减少了23％，同时回流和排水口的水深也明显减少。湿地出口处的挡板有助于保持湿地中所需的水深。这项研究的结果将帮助水文学家和管理人员进行城市雨水管理和规划，以减轻洪水对城市流域的影响。对拟建人工湿地对流域水文学的影响的估算表明，与河道相邻的洪水总体减少了23％，同时回流和排水口的水深明显减少。湿地出口处的挡板有助于保持湿地中所需的水深。这项研究的结果将帮助水文学家和管理人员进行城市雨水管理和规划，以减轻洪水对城市流域的影响。对拟建人工湿地对流域水文学的影响的估算表明，与河道相邻的洪水总体减少了23％，同时回流和排水口的水深明显减少。湿地出口处的挡板有助于保持湿地中所需的水深。这项研究的结果将帮助水文学家和管理人员进行城市雨水管理和规划，以减轻洪水对城市流域的影响。