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Phosphorus (P) release risk in lake sediment evaluated by DIFS model and sediment properties: A new sediment P release risk index (SPRRI).
Environ Pollut. 2019 Dec; 255(Pt 2):113279.EP

Abstract

A new sediment P release risk index (SPRRI) for "in-situ" phosphorus (P) release risk in lake sediment, is developed based on diffusive gradients in thin films (DGT) technique, DGT induced flux in sediments (DIFS) model and sediment properties. SPRRI includes three sub-indexes, which contain (1) the labile P pool size, (2) resupply constant (r) and desorption rate (Dspt rate) for P transfer and (3) the molar ratio between iron (Fe) in sequential extraction for sediment P by bicarbonate-dithionite (BD) and aluminum (Al) by NaOH (at 25 °C), i.e. BD(Fe)/Al[NaOH25] in sediment solid. The first sub-index considers P release from (i) sediment with NH4Cl-P+BD-P pool, i.e. the loosely sorbed P (NH4Cl-P) plus iron associated P (BD-P), or (ii) sediment with NH4Cl-P pool, respectively. The second and third sub-indexes reflect kinetic P desorption and resupply ability of solid phase, and the effect of P sequestration by Al hydroxide on P release, in turn. The inner relationship between SPRRI and sub-indexes, and their effects on P release risk are elucidated. SPRRI can be used to evaluate sediment P reactivity by five release risk ranks. For Lake Dianchi (China), P transfer dynamics, labile P pool, resupply ability and Al-P in sediment, and "external P-loading" control and affect P release risk in different regions, which is reflected by the spatial distribution map for SPRRI. The present SPRRI can be applied for lakes with (1) pH range varying from moderate acidity to weak alkalinity in waterbody and (2) NH4Cl-P or NH4Cl-P+BD-P pool in sediment solid.

Authors+Show Affiliations

National Engineering Laboratory for Lake Pollution Control and Ecological Restoration, Institute of Lake Environmental, Chinese Research Academy of Environmental Sciences (CRAES), Beijing 100012, China; College of Water Sciences, Beijing Normal University, Beijing, 100875, China; Yunnan Key Laboratory of Pollution Process and Management of Plateau Lake-Watershed, Kunming, Yunnan Province, 650034, China.National Engineering Laboratory for Lake Pollution Control and Ecological Restoration, Institute of Lake Environmental, Chinese Research Academy of Environmental Sciences (CRAES), Beijing 100012, China; College of Water Sciences, Beijing Normal University, Beijing, 100875, China; Yunnan Key Laboratory of Pollution Process and Management of Plateau Lake-Watershed, Kunming, Yunnan Province, 650034, China. Electronic address: wangsr@bnu.edu.cn.National Engineering Laboratory for Lake Pollution Control and Ecological Restoration, Institute of Lake Environmental, Chinese Research Academy of Environmental Sciences (CRAES), Beijing 100012, China; College of Water Sciences, Beijing Normal University, Beijing, 100875, China.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

31563787

Citation

Wu, Zhihao, et al. "Phosphorus (P) Release Risk in Lake Sediment Evaluated By DIFS Model and Sediment Properties: a New Sediment P Release Risk Index (SPRRI)." Environmental Pollution (Barking, Essex : 1987), vol. 255, no. Pt 2, 2019, p. 113279.
Wu Z, Wang S, Ji N. Phosphorus (P) release risk in lake sediment evaluated by DIFS model and sediment properties: A new sediment P release risk index (SPRRI). Environ Pollut. 2019;255(Pt 2):113279.
Wu, Z., Wang, S., & Ji, N. (2019). Phosphorus (P) release risk in lake sediment evaluated by DIFS model and sediment properties: A new sediment P release risk index (SPRRI). Environmental Pollution (Barking, Essex : 1987), 255(Pt 2), 113279. https://doi.org/10.1016/j.envpol.2019.113279
Wu Z, Wang S, Ji N. Phosphorus (P) Release Risk in Lake Sediment Evaluated By DIFS Model and Sediment Properties: a New Sediment P Release Risk Index (SPRRI). Environ Pollut. 2019;255(Pt 2):113279. PubMed PMID: 31563787.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Phosphorus (P) release risk in lake sediment evaluated by DIFS model and sediment properties: A new sediment P release risk index (SPRRI). AU - Wu,Zhihao, AU - Wang,Shengrui, AU - Ji,Ningning, Y1 - 2019/09/19/ PY - 2019/01/05/received PY - 2019/08/03/revised PY - 2019/09/18/accepted PY - 2019/9/30/pubmed PY - 2020/1/17/medline PY - 2019/9/30/entrez KW - DGT induced flux in sediments KW - Diffusive gradients in thin films KW - Phosphorus KW - Sediment P release risk index SP - 113279 EP - 113279 JF - Environmental pollution (Barking, Essex : 1987) JO - Environ Pollut VL - 255 IS - Pt 2 N2 - A new sediment P release risk index (SPRRI) for "in-situ" phosphorus (P) release risk in lake sediment, is developed based on diffusive gradients in thin films (DGT) technique, DGT induced flux in sediments (DIFS) model and sediment properties. SPRRI includes three sub-indexes, which contain (1) the labile P pool size, (2) resupply constant (r) and desorption rate (Dspt rate) for P transfer and (3) the molar ratio between iron (Fe) in sequential extraction for sediment P by bicarbonate-dithionite (BD) and aluminum (Al) by NaOH (at 25 °C), i.e. BD(Fe)/Al[NaOH25] in sediment solid. The first sub-index considers P release from (i) sediment with NH4Cl-P+BD-P pool, i.e. the loosely sorbed P (NH4Cl-P) plus iron associated P (BD-P), or (ii) sediment with NH4Cl-P pool, respectively. The second and third sub-indexes reflect kinetic P desorption and resupply ability of solid phase, and the effect of P sequestration by Al hydroxide on P release, in turn. The inner relationship between SPRRI and sub-indexes, and their effects on P release risk are elucidated. SPRRI can be used to evaluate sediment P reactivity by five release risk ranks. For Lake Dianchi (China), P transfer dynamics, labile P pool, resupply ability and Al-P in sediment, and "external P-loading" control and affect P release risk in different regions, which is reflected by the spatial distribution map for SPRRI. The present SPRRI can be applied for lakes with (1) pH range varying from moderate acidity to weak alkalinity in waterbody and (2) NH4Cl-P or NH4Cl-P+BD-P pool in sediment solid. SN - 1873-6424 UR - https://www.unboundmedicine.com/medline/citation/31563787/Phosphorus__P__release_risk_in_lake_sediment_evaluated_by_DIFS_model_and_sediment_properties:_A_new_sediment_P_release_risk_index__SPRRI__ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0269-7491(19)30007-7 DB - PRIME DP - Unbound Medicine ER -