Phosphorus purification in buffer zones in cold climates

Uusi-Kämppä, Jaana

doi:10.1016/j.ecoleng.2005.01.013

Cited by 66 publications

(55 citation statements)

References 18 publications

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“…A number of studies have identified increases in reactive or dissolved forms of P as runoff waters pass through RBZs (188,189,41,126): several of these studies found increases of over 50% in the dissolved or reactive P load (188,41 Carbon is important for denitrification and so can lead to increased N 2 O losses. It also influences the water pH and is related to CO 2 losses (165).…”

Section: Riparian Buffer Zonesmentioning

confidence: 99%

Diffuse Pollution Swapping in Arable Agricultural Systems

Stevens

Quinton

2009

Critical Reviews in Environmental Science and Technology

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Section: Riparian Buffer Zonesmentioning

confidence: 99%

Diffuse Pollution Swapping in Arable Agricultural Systems

Stevens

Quinton

2009

Critical Reviews in Environmental Science and Technology

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“…Thus, many buffer soils are enriched in nutrients, especially with phosphorus, as they have previously been part of the agricultural land (Meals et al, 2008). Concentrations may further increase with erosional sediment input as well as temporally when nutrients are being recycled during plant senescence (Syversen and Borch, 2005;Uusi-Kämppä, 2005). The latter process is accelerated with the increased microbial activity found in buffers (Stutter et al, 2009;Roberts et al, 2012;Dodd and Sharpley, 2016).…”

Section: Introductionmentioning

confidence: 96%

Does Regular Harvesting Increase Plant Diversity in Buffer Strips Separating Agricultural Land and Surface Waters?

Hille

Larsen

Rubæk

et al. 2018

Front. Environ. Sci.

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Vegetated buffer strips are often established in agricultural landscapes as an "edge of the field" mitigation measure against diffuse nutrient pollution of the aquatic environment. Harvesting of the vegetation has been suggested as a possible management strategy to prevent build-up of excessive amounts of nutrients in buffer soils and, at the same time, harvesting can have a positive effect on the diversity of the vegetation. However, the response of the vegetation to harvesting likely depends on taxonomic and functional characteristics. In the present study, we explored effects of harvesting frequency (by comparing harvesting once, twice, and four times per year to an unharvested control) on the taxonomic and functional trait composition of four different types of plant communities in buffer strips in Denmark. We found that one to two harvests per year mediated an increase in the diversity of the vegetation in low diversity buffer strips dominated by tall and productive herbs (tall herb fringe), whereas the diversity remained unchanged in buffer strips dominated by grasses as well as in more diverse buffer strips with rich fen and wet meadow species. We also found that harvesting changed the compositional patterns in the tall herb fringe community, with an increasing abundance of grasses and a declining abundance of tall herb species, in particular at a high harvesting frequency. Concomitant with these taxonomic changes, we observed changes in the trait composition of the community. The abundance of tall species declined in the tall herb fringe and in the tall grass community. Similarly, the abundance of productive species (as indicated by high Ellenberg N and Ellenberg R values) declined in the tall herb fringe (in areas harvested four times per year). We conclude that low frequency harvesting is a promising management strategy to increase plant diversity in buffer strips with an initially low diversity and high productivity and that harvesting over time can mediate a shift in compositional patterns toward less productive species.

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“…However, this study shows that traditional buffer zones may not be an efficient method to mitigate the P release from all harvested areas, since, in this study, about 80 % of TP in the study stream was soluble and more than 70 % of the P release occurred in storm events when there would have been low residence times for the uptake of soluble P in the buffer zones. In fact, using buffer zones to reduce P release could do the opposite, as the buffer zones which usually adjoin to the water body could become P release sources (Uusi-Kämppä, 2005).…”

Section: Whole Tree Harvesting Buffer Zone and Phased Fellingmentioning

confidence: 99%