Release of phosphorus from sediments in Lake Biwa

Murphy, Tom; Lawson, A.; Kumagai, M.; Nalewajko, C.

doi:10.1007/s102010170007

Cited by 55 publications

(29 citation statements)

References 36 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Previous study found that the high contents of IP and TP in the Yellow River Estuary were due to the high content of P in loess, which was eroded over the drainage basin and carried by the Yellow River (Liu et al, 2004b). It also may be due to the formation of P and iron compounds with the sorption of phosphate ions, which may cause the increase of TP content in sediments (Murphy et al, 2001). However, the maximum value was observed in the central zone of the Bay (L12) (Fig.…”

mentioning

confidence: 94%

Geochemical characteristics of phosphorus in surface sediments of two major Chinese mariculture areas: The Laizhou Bay and the coastal waters of the Zhangzi Island

Zhuang¹,

Gao²,

Zhang³

et al. 2014

Marine Pollution Bulletin

View full text Add to dashboard Cite

a b s t r a c tPhosphorus (P) in surface sediments of the Laizhou Bay (LB) and the coastal waters around the Zhangzi Island (ZI) was analyzed. Six forms of P were separated -exchangeable or loosely sorbed P (Ads-P), aluminum-bound P (Al-P), iron-bound P (Fe-P), authigenic apatite plus CaCO 3 -bound P plus biogenic apatite (Ca-P), detrital apatite plus other inorganic P (De-P) and organic P (OP). The average contents of P in the LB were in the order: De-P > OP > Ca-P > Fe-P > Ads-P > Al-P; in the ZI, the corresponding order was De-P > OP > Fe-P > Ca-P > Ads-P > Al-P. Due to the high nutrient loadings from the surrounding rivers, TP contents in sediments of the LB were higher than in those of the ZI. The potential bio-available P (Ads-P and OP) accounted for 14.7% and 24.2% of TP in sediments of the LB and the ZI, respectively.Ó 2014 Elsevier Ltd. All rights reserved.As an important biogenic element in the ocean, phosphorus (P) directly affects the primary productivity of the ocean and has a significant impact on the marine carbon cycle (Lui and Chen, 2011;Yu et al., 2012); P is also directly related to the global climate and environmental changes (Krom et al., 2004). Hecky and Kilham (1988) pointed out that P might be the element which controlled the global marine biological productivity during a long geologic time scale (>1000 years). As an important reservoir of P in marine environment, sediment not only has a buffering effect on the P content in the overlying water, but also is an important source of P in seawater (Giblin et al., 1997;Zabel et al., 1998). Fisher et al. (1982) reported that sediments provided 28-35% of P needed in the primary productivity of coastal marine ecosystems.Both organic and inorganic forms of P are present in marine sediments. Inorganic forms of P may be adsorbed onto the surfaces of minerals, or be bound to aluminum, iron, or calcium (Föllmi, 1996;Benitez-Nelson, 2000;Łukawska-Matuszewska and Bolałek, 2008;Song, 2010). The binding forms of P in sediments have major influences on transportation, degradation, and the ultimate fate of P in marine ecosystems. Only certain forms of P can be transformed into bio-available ones after being affected by physical, chemical and biological factors, including desorption, dissolution and reduction processes (Song, 2010). After that, the bio-available forms of P are released into the overlying water. These certain forms of P become important factors affecting the trophic status of water or causing eutrophication (Eijsink et al., 2000). Therefore, research on the geochemical forms of P in sediments may help researchers understand the dynamic cycle of P in seawater and sediments, such as migration and transformation between sediments and the overlying water, and subsequent diagenesis and other geochemical processes (Zabel et al., 1998;Eijsink et al., 2000).The Laizhou Bay and the surrounding marine area of the Zhangzi Island (hereafter referred to as the Zhangzi Island for short) are important mariculture zones in China, and they are located in the B...

show abstract

mentioning

confidence: 94%

Geochemical characteristics of phosphorus in surface sediments of two major Chinese mariculture areas: The Laizhou Bay and the coastal waters of the Zhangzi Island

Zhuang¹,

Gao²,

Zhang³

et al. 2014

Marine Pollution Bulletin

View full text Add to dashboard Cite

show abstract

“…Some general prediction models of these processes have already been developed; however, in many cases unpredictable local factors are of great importance (Boström et al 1982, Pant and Reddy 2001, Wang et al 2003, KowalczewskaMadura and Gołdyn 2010. The most important factors influencing the release of phosphorus are: temperature (Kelderman 1984, Psenner 1984, Forsberg 1989, pH (Lijklema 1980, Boström et al 1988, Moore and Reddy 1994, the concentration of oxygen in the surface layer of sediments and in the near-water layer , Wiśniewski and Planter 1987, Ishikawa and Nishimura 1989, Uchmański et al 1993, Kleeberg and Dudel 1997, the concentration of Fe and Mn (Murphy et al 2001, Czerwieniec 2002, Søndergaard et al 2002, and bioturbation by macroinvertebrates (Andersson et al 1988, Tatrai 1988, Swan et al 2007.…”

Section: Introductionmentioning

confidence: 99%

The bottom sediments of Lake Uzarzewskie - a phosphorus source or sink?

Kowalczewska‐Madura

Gołdyn

Dondajewska

2010

Oceanological and Hydrobiological Studies

View full text Add to dashboard Cite

Phosphorus release from bottom sediments studied in two zones of Lake Uzarzewskie differing in depth and water oxygenation displayed seasonal and spatial variability. The experiments indicated that the lake receives considerable internal loading, especially from the deeper, anaerobic, rarely-mixed part of the lake. Meanwhile, the shallow zone situated in the 0-3 m depth range, could be a sink for phosphorus during spring and a source during other seasons of the year. The total loading of phosphorus from the bottom sediments was over 950 kg year -1 P, and 83% of this amount originated from the deeper part of the lake. The mean release from this part was 24.89 mg m -2 d -1 P and the maximum in fall was 35.4 mg m -2 d -1 P.

show abstract

“…These studies 0925-8574/$ -see front matter © 2006 Elsevier B.V. All rights reserved. doi:10.1016/j.ecoleng.2006.06.002 include: (a) the origin and eutrophication of lakes (Scheren et al, 2000;Gulati and van Donk, 2002;Coveney et al, 2002;Xie and Xie, 2002;Krogerus and Ekholm, 2003), and some long-term studies following restoration measures (van Duin et al, 1998;Kleeberg and Kohl, 1999;Coveney et al, 2002); (b) Restoration techniques involving hydrological and chemical manipulation aimed at P reductions in the inflows and in the lake itself, and manipulation of lake biota (biomanipulation) and case studies (Stuben et al, 1998;Xie et al, 2004); (c) Effect of release of sediment nutrients on the water quality and restoration projects (Murphy et al, 2001;Kim et al, 2003;Fytianos and Kotzakioti, 2005), including achievements and failures, and future research directions, and (d) Modelling studies based on both empirical and theoretical information (Rydin, 2000;Tao et al, 2000;Kim et al, 2004;Ruley and Rusch, 2004) and the role of fish, macrophytes and zooplankton in lake restoration (Qiu et al, 2001;Ostroumov, 2004).…”

Section: Introductionmentioning

confidence: 99%