Long-term accumulation and retention of Al, Fe and P in peat soils of northern treatment wetlands
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- 作者：Satu Maaria Karjalainena ; satu.maaria.karjalainen@ymparisto.fi" class="auth_mail" title="E-mail the corresponding author ; Anna-Kaisa Ronkanenb ; anna-kaisa.ronkanen@oulu.fi" class="auth_mail" title="E-mail the corresponding author ; Kaisa Heikkinena ; kaisa.heikkinen@ymparisto.fi" class="auth_mail" title="E-mail the corresponding author ; Bjø ; rn Klø ; veb ; bjorn.klove@oulu.fi" class="auth_mail" title="E-mail the corresponding author
- 关键词：Aluminium ; Iron ; Phosphorus ; Peat ; Water quality monitoring ; Treatment wetland
- 刊名：Ecological Engineering
- 出版年：2016
- 出版时间：August 2016
- 年：2016
- 卷：93
- 期：Complete
- 页码：91-103
- 全文大小：1739 K
文摘
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Phosphorus retention remained high after almost 20 years of treatment wetland use.
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Maximum sorption capacity may be observed from peat P and pore water PO4-P concentrations.
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Annual P accumulation through peat accretion was 0.002–0.028 g P m−2 in northern treatment wetlands.
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Precipitation of P is enhanced by runoff Fe originating from peat extraction.
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Calculating P retention from inlet/outlet loads is not always an accurate estimate of the long-term P sink.