Meteorological data from vegetated and un-vegetated wetlands during wet and dry seasons, were collected and analyzed to evaluate the role of wind and vegetation on wetlands’ hydrology. Wind speed diminished by as much as 40%, accompanied by a measurable change in wind directions in the vegetated compared to the open water site. Wind speed and direction means were significantly different (p < 0.001 and <0.01), for vegetated and non-vegetated wetland, respectively. Cattails (Typha sp.) and open water estimates of wind drag coefficients using the log wind profile, were 0.016 and 0.009 for dry season, and 0.012 and 0.005 for wet season, respectively. Wind set up near the wetland outlet was more pronounced at shallow water depth (<20 cm). Measured velocity profile during inflow discharge event with a wind speed of 0.53 ms−1, showed two-layer flows; wind-generated surface water flow opposite to a sub-surface inflow. This opposing surface flow increases hydraulic residence time and improve nutrient uptake. Conversely, wind-generated flows aligned with inflow discharges, accelerates water flow towards the outlet, reduce the duration of water-biotic interactions, and decrease nutrient uptake.

中文翻译：

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人工湿地风与植被相互作用的评估

收集并分析了雨季和旱季有植被和无植被湿地的气象数据，以评估风和植被对湿地水文的影响。与开阔水域相比，风速降低了 40%，同时植被中的风向发生了可测量的变化。植被和非植被湿地的风速和风向平均值分别显着不同（p < 0.001 和 < 0.01）。香蒲 (Typha sp.) 和开放水域风阻系数使用对数风廓线估计，旱季分别为 0.016 和 0.009，雨季分别为 0.012 和 0.005。湿地出口附近的风在浅水深（<20 厘米）处更为明显。在风速为 0.53 ms-1 的流入排放事件期间测得的速度剖面，呈两层流；风产生的地表水流与地下流入水流相反。这种相反的表面流动增加了水力停留时间并改善了养分吸收。相反，风产生的流动与流入排放对齐，加速流向出口的水流，减少水-生物相互作用的持续时间，并减少养分吸收。