caa a22 4500 463208846 CHVBK 20180405153134.0 cr unu---uuuuu 170326e20070201xx s 000 0 eng 10.1007/s10705-006-9055-5 doi (NATIONALLICENCE)springer-10.1007/s10705-006-9055-5 Catchment litter: a phosphorus source mobilized during seasonal rainfall [Elektronische Daten] [A. McComb, S. Qiu, R. Bell, J. Davis] Wetlands in south-western Australia are often situated in the interdunal depressions of coastal sand dunes and have catchments with significant areas of native vegetation. While farming and urbanization are two common sources of nutrients, natural processes such as P release from catchment litter and its significance as a P source for these waters have rarely been investigated. We studied litter production in a wooded catchment, and the leaching potential of litter P over the wet season. High concentrations of P, from 1.2-4.6mgl−1 (non-flooded conditions) to 1.5-5.7mgl−1 (flooded conditions) were leached from litter during the ‘first flush' of the wet season. Overall 25.7-84.1% of the total P in litter was released via leachate during rainy months of May to November, mostly during the ‘first flush'. This equals a load of 0.91kgPha−1year−1 in response to annual leaf litter production on this catchment. The source was relatively small compared with the fertiliser P use in agricultural soils of the region (3.1-9.8kgPha−1year−1) but was comparable with P export from agricultural catchments. Catchment litter as a source of P will need to be accounted for in the wetland management. Springer Science+Business Media B.V., 2006 Phosphorus leaching nationallicence Litterfall nationallicence Gilvin nationallicence P source nationallicence Litter turnover nationallicence Swan Coastal Plain nationallicence McComb A. School of Environmental Science, Murdoch University, 6150, Murdoch, WA, Australia aut Qiu S. School of Environmental Science, Murdoch University, 6150, Murdoch, WA, Australia aut Bell R. School of Environmental Science, Murdoch University, 6150, Murdoch, WA, Australia aut Davis J. School of Environmental Science, Murdoch University, 6150, Murdoch, WA, Australia aut Nutrient Cycling in Agroecosystems Kluwer Academic Publishers 77/2(2007-02-01), 179-186 1385-1314 77:2<179 2007 77 10705 https://doi.org/10.1007/s10705-006-9055-5 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10705-006-9055-5 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- McComb A. School of Environmental Science, Murdoch University, 6150, Murdoch, WA, Australia aut NATIONALLICENCE 700 1- Qiu S. School of Environmental Science, Murdoch University, 6150, Murdoch, WA, Australia aut NATIONALLICENCE 700 1- Bell R. School of Environmental Science, Murdoch University, 6150, Murdoch, WA, Australia aut NATIONALLICENCE 700 1- Davis J. School of Environmental Science, Murdoch University, 6150, Murdoch, WA, Australia aut NATIONALLICENCE 773 0- Nutrient Cycling in Agroecosystems Kluwer Academic Publishers 77/2(2007-02-01), 179-186 1385-1314 77:2<179 2007 77 10705 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer