Wetlands riparian

Riparian wetlands are those lands that are periodically inundated with water from adjacent rivers, streams, lakes or other freshwater bodies, and by runoff from upland areas. Large fluxes of energy and nutrients pass through riparian wetlands and they are important sinks and transformers of nutrients. In watersheds with extensive riparian wetlands, the composition of the river water may 

The terms in the nutrient balance of a riparian wetland are essentially the same as those in a traditional wetland ricefleld in a river floodplain or delta, though of course the magnitudes differ. Inputs are delivered along the stream course as dissolved material and sediment, and in lateral runoff from neighbouring upland dissolved and particulate material is filtered, absorbed, adsorbed and variously transformed in the wetland, and flows out in runoff and percolation. 

Riparian wetlands are effective though not infinite sinks for nitrate and phosphate from agricultural runoff. Strips of wetland a few tens of metres wide have been shown to remove the bulk of nitrate and phosphate entering in runoff and groundwater, though the limits to this under different circumstances are not well quantified (Baker and Malfby, 1995 Mitsch and Gosselink, 2000). 

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Table 7.3 Additions of P in sediments in ricefields in Asia and riparian wetlands in North America...

Riparian wetlands in North America Southern Illinois 3.6... 

Heim, S., J. Schwarzbauer, A. Kronimus, R. Littke, C. Woda, and A. Mangini. 2004. Geochronology of anthropogenic pollutants in riparian wetland sediments of the Lippe River (Germany). Org. Geochem. 35 1409-1425. 

Seitzinger S. P. (1994) Linkages between organic matter mineralization and denitrification in eight riparian wetlands. Biogeochemistry 25, 19-39. 

Organic pollutants in riparian wetlands of the Lippe river (Germany) ... 

Tab. 1 Selected organic contaminants identified in the sediment core of a riparian wetland of the Lippe river (Germany). The compounds selected for quantitative analyses are underlined.

Therefore, this study was performed to produce a more comprehensive reconstruction of the pollution history of a riverine system. Based on an earlier, preliminary investigation (Heim et al., 2003), a sediment core derived from a riparian wetland of the Lippe river (Germany) was examined by means of radiological and organic geochemical analyses. 

Preliminary organic geochemical investigations were performed on layers of a formerly dated sediment core taken from a riparian wetland of the Lippe river (Germany). The samples were collected from two distinct depth intervals representing sedimentation periods of 1944-1952 and 1972-1984, respectively. The quantitative distribution of selected persistent lipophilic organic substances characteres municipal as well as... 

Heim S, Schwarzbauer J, Kronimus A, Littke R, Hembrock-Heger A (2003). Organic pollutants in riparian wetlands of the Lippe river (Germany). Environ Chem Lett, 1, 169-173... 

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