Spatiotemporal differences in phosphorus release potential of bloom-forming cyanobacteria in Lake Taihu

2021 ◽  
Vol 271 ◽  
pp. 116294
Author(s):  
Mengmeng Wang ◽  
Huifen Zhang ◽  
Caili Du ◽  
Wei Zhang ◽  
Jianing Shen ◽  
...  
Keyword(s):  
Lake Taihu ◽  
Phosphorus Release ◽  
Release Potential

Phosphorus release from cyanobacterial blooms in Meiliang Bay of Lake Taihu, China

2011 ◽  
Vol 37 (6) ◽  
pp. 842-849 ◽  
Author(s):  
Xiaoming Chuai ◽  
Wei Ding ◽  
Xiaofeng Chen ◽  
Xiaolin Wang ◽  
Aijun Miao ◽  
...  
Keyword(s):  
Lake Taihu ◽  
Phosphorus Release ◽  
Cyanobacterial Blooms ◽  
Meiliang Bay

scholarly journals The effects of red soil in removing phosphorus from water column and reducing phosphorus release from sediment in Lake Taihu

2014 ◽  
Vol 69 (5) ◽  
pp. 1052-1058 ◽  
Author(s):  
Lichun Dai ◽  
Gang Pan
Keyword(s):  
Water Column ◽  
Lake Taihu ◽  
Cost Effective ◽  
Phosphorus Release ◽  
Red Soil ◽  
Natural Soil ◽  
P Adsorption ◽  
P Release ◽  
The Cost ◽  
Short Time

A natural red soil and a lanthanum-modified soil (LMS) were tested to compare their phosphorus (P) adsorption capacities and their effectiveness in removing P from the water column and reducing P release from sediment. The equilibrium of P adsorption demonstrated that the maximum P adsorption for the soil was 1.29 and 2.22 mg g−1 at pH 8.5 and 5.5, respectively, and for the LMS these were increased by 45.6 and 77.6% at pH 8.5 and 5.5, respectively, indicating that the soil was effective in P adsorption and the doping of lanthanum could substantially increase P adsorption. The sediment–water column incubation showed that, due to the P adsorption of the soil and LMS, the total P in the water column decreased by 58.5, 60.6, 68.2 and 77.2% for 180 g m−2 soil, 900 g m−2 soil, 180 g m−2 LMS and 900 g m−2 LMS treated systems, respectively, in a short time (6 h), and the capping layer substantially reduced the P release from sediment during column incubation, indicating that the soils were effective in reducing internal P load. However, considering the cost of LMS, the natural soil was suggested to be a cost-effective material to control internal P load.

scholarly journals Phosphorus Release by Zooplankton in Lake Taihu in Spring

2006 ◽  
Vol 18 (1) ◽  
pp. 69-72
Author(s):  
PAN Hongkai ◽  
◽  
YANG Guijung ◽  
LIU Zhengwen
Keyword(s):  
Lake Taihu ◽  
Phosphorus Release

scholarly journals Phosphorus Sorption Capacity of the Surface Sediment in the Lake Taihu and Risk Assessment of Phosphorus Release

2004 ◽  
Vol 16 (2) ◽  
pp. 98-105
Author(s):  
HUANG Qinghui ◽  
◽  
WANG Zijian ◽  
WANG Donghong ◽  
WANG Chunxia ◽  
...  
Keyword(s):  
Risk Assessment ◽  
Sorption Capacity ◽  
Surface Sediment ◽  
Lake Taihu ◽  
Phosphorus Release ◽  
Phosphorus Sorption ◽  
Phosphorus Sorption Capacity

Fractional Composition of Phosphorus Forms in Sediments Related to Release

1982 ◽  
Vol 14 (4-5) ◽  
pp. 215-226 ◽  
Author(s):  
H Furumai ◽  
S Ohgaki
Keyword(s):  
Fractional Composition ◽  
Organic Phosphorus ◽  
Aluminum Phosphate ◽  
Iron Phosphate ◽  
Phosphorus Release ◽  
Phosphorus Forms ◽  
P Fraction ◽  
Fractionation Method ◽  
Release Potential ◽  
Total Sediment

The relation between the fractional composition of phosphorus forms in sediment and phosphorus release was investigated experimentally using incubation bottles. The validity of the sediment phsophorus fractionation method developed in the field of soil science was examined and it proved to be successful for fractionation of pure phosphate compounds which were added to sediments. The iron and aluminum phosphate and adsorbed phosphorus were recovered in NaOH (lN) extractable ortho-phosphate (NaOH-o-P) fraction, calcium phosphate in HC1 (lN) extractable ortho-phosphate (HCl-o-P) fraction, and organic phosphorus in MaOH extractable total-phosphorus except for ortho-phosphate (NaOH-[T-o]-P) fraction and residual (Res.-P) fraction. This method was used to identify the form of phosphorus in sediments collected from a lake and a canal. NaOH-o-P fraction was the main phosphorus constituent in both sediments. The change in MaOH-o-P fraction accounted for most of the change in total sediment phosphorus. NaOH-o-P fraction in the sediment decreased during the period of incubation as the concentrations in the water increased but other fractions remained constant. The addition of iron phosphate and adsorbed phosphorus to the sediments promoted phosphorus release. Therefore, the changes in the fractional composition of the phosphorus forms indicated that NaOH-o-P fraction is the form of phosphorus which is most easily released under anaerobic condition. The amount of this fraction is the index of the phosphorus release potential of sediments.

Ecological significance and phosphorus release potential of phosphate solubilizing bacteria in freshwater ecosystems

Hydrobiologia ◽  
2014 ◽  
Vol 745 (1) ◽  
pp. 69-83 ◽  
Author(s):  
Nilanjan Maitra ◽  
Sanjib Kumar Manna ◽  
Srikanta Samanta ◽  
Keka Sarkar ◽  
Debashri Debnath ◽  
...  
Keyword(s):  
Phosphorus Release ◽  
Freshwater Ecosystems ◽  
Phosphate Solubilizing Bacteria ◽  
Ecological Significance ◽  
Release Potential ◽  
Phosphate Solubilizing

scholarly journals Effects of algae and hydrophytes on the inorganic phosphorus pool of shallow hypereutrophic Lake Taihu

2021 ◽  
Author(s):  
Xiaojun Li ◽  
Xiaoguang Xu ◽  
Yanping Zhao ◽  
Ruiming Han ◽  
Guoxiang Wang
Keyword(s):  
Organic Phosphorus ◽  
Lake Taihu ◽  
Pearson Correlation ◽  
Eutrophic Lake ◽  
Phosphorus Release ◽  
Phosphorus Loading ◽  
Lake Ecosystem ◽  
Phosphorus Cycle ◽  
Contamination Assessment ◽  
Sediment Phosphorus

Abstract Sedimentary phosphorus is a crucially potential source of phosphorus in the eutrophic lake ecosystem. Different ecological types are supposed to affect the presence and variation of sediment phosphorus. On the basis of field investigations, the total sediment phosphorus load in Zhushan Bay was 1,457.48 mg/kg, nearly four times that of the hydrophyte-dominated area. Thereinto, 41.1% was in the form of iron and aluminum-bound phosphorus, which explicitly indicated the phosphorus contamination there. Analytical methods such as Pearson correlation, contamination assessment and principle component analysis were conducted to find out that ‘contamination’ was not equivalent to ‘release risk’. The contamination classification of East Lake Taihu was ‘clean’ in general. However, 63.3% of the total phosphorus could be mobilized under certain conditions. Therefore, light phosphorus loading does not equal to less release risk. In the long run, the implicit phosphorus release by the activation of organic phosphorus in hydrophytic areas needs close attention. This study provides a reference to understand the influence of hydrophytes and algae on the phosphorus cycle of sediment.

Sign in / Sign up

Export Citation Format

Share Document