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首页> 外文期刊>Advances in limnology >Influence of periphyton biomass dynamics on biologi cal coimation processes in the hyporheic zone of a gravel bed river (River Lahn, Germany)
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Influence of periphyton biomass dynamics on biologi cal coimation processes in the hyporheic zone of a gravel bed river (River Lahn, Germany)

机译：砾石床河下流带的围生生物量动态对生物模拟过程的影响

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摘要

Riverbed permeability is a key factor controlling important ecological functions taking place in the hyporheic zone in river ecosystems. However, no direct long-term and continuous measurements of coimation in rivers exist Hence, we studied dynamic coimation patterns in the River Lahn (Germany) in order to quantify the biological coimation under eutrophic conditions. Daily temperature curves were measured in vertical profiles in the riverbed, which permitted the estimation of vertical infiltration velocities. These were related to the seasonal dynamics of discharge, water temperature, and of periphyton biomass. In addition, a hyporheic mesocosm experiment was conducted in order to reveal diffe-iences between internal and external coimation processes, including short-term dynamic patterns of gravel permeability. The results showed that the vertical infiltration rates across riffle structures.
机译：河床渗透性是控制河流生态系统中低潮带发生的重要生态功能的关键因素。但是，由于没有直接和长期的连续测量方法，因此，我们研究了拉恩河（德国）的动态编码方式，以便对富营养条件下的生物编码进行量化。在河床的垂直剖面中测量了每日温度曲线，从而可以估算垂直入渗速度。这些与排放，水温和浮游生物量的季节动态有关。此外，进行了流变中观实验，以揭示内部和外部混合过程之间的差异，包括砾石渗透性的短期动态模式。结果表明，跨浅滩结构的垂直入渗速率。

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