▪ Abstract The hyporheic zone is an active ecotone between the surface stream and
groundwater. Exchanges of water, nutrients, and organic matter occur in response to …

Humic Substances color all waters more or less brown. Their concentrations exceed all
carbon of living organisms by at least one order of magnitude. Opposite to former …

Droughts are among the most important disturbance events for stream ecosystems; they not
only affect stream hydrology but also the stream biota. Although desiccation of streams is …

Climate change affects running waters not only by increasing temperatures but also by
increasing discharge variability as more frequent and severe floods and more frequent and …

Water flowing through hyporheic river sediments or artificial recharge facilities promotes the
development of microbial communities with sediment depth. We performed an 83-day …

Monthly sediment and interstitial water samples were collected in a shallow Chinese
freshwater lake (Lake Donghu) from three areas to determine if alkaline phosphatase activity …

Waters draining into a lake carry with them much of the suspended sediment that is
transported by rivers and streams from the local drainage basin. The organic matter …

In most lakes, nutrient limitation is synonymous with P-limitation. Low concentrations of P
restrict the productivity of freshwater organisms and freshwater ecosystems, a fact that has …

The influence of a further developed inlake restoration method on the P-immobilisation and
microbial activities, especially under anoxic conditions was investigated. The impact of …

Non-living natural organic matter (NOM) comprises in most aquatic environments the largest
organic matter (OM) fraction, and it harbours also the largest organic carbon pool (Allen …