scholarly journals Dissolved inorganic phosphorus export to the coastal zone: Results from a spatially explicit, global model

2005 ◽  
Vol 19 (4) ◽  
pp. n/a-n/a ◽  
Author(s):  
John A. Harrison ◽  
Sybil P. Seitzinger ◽  
A. F. Bouwman ◽  
Nina F. Caraco ◽  
Arthur H. W. Beusen ◽  
...  
Keyword(s):  
Coastal Zone ◽  
Inorganic Phosphorus ◽  
Global Model ◽  
Spatially Explicit ◽  
Dissolved Inorganic Phosphorus ◽  
Phosphorus Export

Magnitudes and sources of dissolved inorganic phosphorus inputs to surface fresh waters and the coastal zone: A new global model

2010 ◽  
Vol 24 (1) ◽  
pp. n/a-n/a ◽  
Author(s):  
John A. Harrison ◽  
A. F. Bouwman ◽  
Emilio Mayorga ◽  
Sybil Seitzinger
Keyword(s):  
Coastal Zone ◽  
Inorganic Phosphorus ◽  
Global Model ◽  
Fresh Waters ◽  
Dissolved Inorganic Phosphorus

scholarly journals Global patterns of dissolved silica export to the coastal zone: Results from a spatially explicit global model

2009 ◽  
Vol 23 (4) ◽  
pp. n/a-n/a ◽  
Author(s):  
A. H. W. Beusen ◽  
A. F. Bouwman ◽  
H. H. Dürr ◽  
A. L. M. Dekkers ◽  
J. Hartmann
Keyword(s):  
Coastal Zone ◽  
Global Model ◽  
Spatially Explicit ◽  
Dissolved Silica ◽  
Global Patterns

scholarly journals Dark accelerates dissolved inorganic phosphorus release of high-density cyanobacteria

PLoS ONE ◽  
2020 ◽  
Vol 15 (12) ◽  
pp. e0243582
Author(s):  
Mengmeng Wang ◽  
Huifen Zhang ◽  
Menggaoshan Chen ◽  
Liuyan Yang ◽  
Yichen Yang
Keyword(s):  
Inorganic Phosphorus ◽  
Phosphorus Release ◽  
High Density ◽  
Freshwater Lakes ◽  
Microcosm Experiment ◽  
Release Process ◽  
Water Parameters ◽  
Degrading Bacteria ◽  
Phosphorus Source ◽  
Dissolved Inorganic Phosphorus

Bloom-forming cyanobacteria dramatically influence nutrient cycling in eutrophic freshwater lakes. The phosphorus (P) assimilation and release of bloom-forming cyanobacteria significantly may also affect the phosphorus source and amounts in water. To understand the phosphorus release process of bloom-forming cyanobacteria below the accumulated surface and sedimentary bloom-forming cyanobacteria, the degradation of bloom-forming cyanobacteria dominated by Microcystis spp. at different cell density in the dark was investigated over a 25-day microcosm experiment. The dissolved inorganic phosphorus (DIP) and dissolved total phosphorus (DTP) contents increased with the increment of cyanobacterial density, and the dark status markedly increased the proportion of DIP in water during the decline period of bloom-forming cyanobacteria. Meanwhile, the process of cyanobacterial apoptosis accompanied by the changes of malondialdehyde (MDA) and phosphatase (AKP) contents, and the increases of superoxide dismutase (SOD) and catalase (CAT) activities of cyanobacteria in the dark, especially in low-density groups (5.23×108 cells L-1), which further affect the physicochemical water parameters. Moreover, the DIP release from high-density cyanobacteria (7.86×107 cells L-1~5.23×108 cells L-1) resulted from the relative abundance of organophosphorus degrading bacteria in the dark. Therefore, the fast decay of cyanobacteria in the dark could accelerate DIP release, the high DIP release amount from accumulated bloom-cyanobacteria provide adequate P quickly for the sustained growth of cyanobacteria.

Fertilization and pH effects on processes and mechanisms controlling dissolved inorganic phosphorus in soils

2011 ◽  
Vol 75 (10) ◽  
pp. 2980-2996 ◽  
Author(s):  
Nicolas Devau ◽  
Philippe Hinsinger ◽  
Edith Le Cadre ◽  
Bruno Colomb ◽  
Frédéric Gérard
Keyword(s):  
Inorganic Phosphorus ◽  
Ph Effects ◽  
Dissolved Inorganic Phosphorus
Sign in / Sign up

Export Citation Format

Share Document