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Role of catchment litter in wetland P cycling-recent experience from Western Australia

Qiu, S., McComb, A.J. and Bell, R.W.ORCID: 0000-0002-7756-3755 (2008) Role of catchment litter in wetland P cycling-recent experience from Western Australia. Proceedings of the National Academy of Sciences India Section B - Biological Sciences, 78 (Spec.). pp. 21-27.

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Many wetlands in south-western Australia are situated in the interdunal depressions of coastal sand dunes, and have catchments with significant native vegetation. While farming and urbanisation are common sources of nutrients, natural processes such as P release from catchment litter and its potential as a P source for these waters have rarely been investigated. Such information is important not only in understanding the wetland ecology, but also in setting restoration targets for eutrophic waters in the region. This review focuses on recent works conducted in a number of small wetlands near Perth, Western Australia, covering the issues of litter production, rates of decomposition and P leaching, subsequent interactions of leachate with soil and microbial biomass, and the mobility of nutrients. The export of P from catchment litter to wetland was estimated using a new "in-lake" method, developed to quantify P transfer through primary (atmosp.heric and groundwater) and secondary processes (e.g. circulation and sediment-water interactions).

Item Type: Journal Article
Murdoch Affiliation(s): School of Environmental Science
Publisher: National Academy of Sciences India
Copyright: National Academy of Sciences India
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