Catch up on sediments to understand particulate phosphorus processes

PhD student Hannah Wenng and co-authors recently published a paper where they study catchment processes of particle mobilisation and transport. In arable land, phosphorus losses are often closely linked to sediment losses, which means that a better understanding of the sediment-runoff processes is important to select the most optimal and targeted mitigation measures to reduce eutrophication. Hannah installed turbidity sensors

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Increased carbon and nitrogen concentrations in boreal forested catchments

Brownification of waters is a threat to aquatic ecosystems over large areas in Europe. A new paper links increasing concentrations of dissolved organic carbon to climate, deposition, and land-use, and the complex interactions between them. The authors studied 12 small forested headwater catchments in Finland, with monitoring records from 1990 to 2019. The catchments had a large gradient of climate

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Intensified forestry can change surface water quality

“The ambition to use forestry as a climate mitigation measure should take into consideration the potential effects of forestry management methods on soil and surface water quality, in particular in acid-sensitive areas such as southern Norway.” This is the main message of a new paper titled “Intensified forestry as a climate mitigation measure alters surface water quality in low intensity

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use of satellite images, land-use statistics and coefficients to predict nutrient runoff

Can land-use-specific export coefficients be used together with satellite images (Landsat) and/or regional land-use statistics to estimate loads and concentrations of total nitrogen, total phosphorus, and suspended solids? This question was raised by the authors of a new publication in Science of the Total Environment. Main author is Biowater’s PhD student Joy Bhattacharjee. The study area was the Simojoki catchment

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New paper on browning of lake waters

A new paper on lake water browning has just been published. Increasing lake water color has been observed in the Northern Hemisphere during recent decades. Browner water has pronounced effects on both the freshwater ecology and society, as it may reduce light transmission, alter aquatic species composition, enhance anoxia and increase the cost of drinking water treatment.  Explanation to increased

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Higher long-term nutrient losses from forestry drainage than previously believed

With the emerging bioeconomy it is important to understand how forestry drainage affects nutrient losses. A new paper has used long-term data to assess export at different spatial scales in Finland. The authors found that long-term impacts of forest drainage are much higher than previously estimated. Hence, drained areas of forests are hotspots for the export of total nitrogen, total

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comparing nutrient reference conditions in nordic streams

Reference conditions can be defined as the natural state of a water body. The concept is becoming increasingly important since climate and land use changes increase the pressures on our water bodies. However, determining nutrient reference conditions in areas that have been cultivated for centuries has proven difficult. BIOWATER scientists have therefore compared how the Nordic countries have approached the

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