Internal phosphorus loading from sediments causes seasonal nitrogen limitation for harmful algal blooms

Ding, Shiming; Chen, Musong; Gong, Maoqiong; Fan, Xianfang; Qin, Boqiang; Xu, Hai; Gao, Shuaishuai; Jin, Zengfeng; Tsang, Daniel C.W.; Zhang, Chaosheng

doi:10.1016/j.scitotenv.2017.12.348

Cited by 247 publications

(90 citation statements)

References 66 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Support for this hypothesis occurs if water or summer air temperature is an important predictor of HABs with a positive drift coefficient. Longer summer : Longer seasons of high temperature increase the opportunity for cyanobacterial growth (Anneville et al ; Deng et al ; Visser et al ). Support for this hypothesis occurs if spring air temperature is an important predictor of HABs with a positive drift coefficient. Internal phosphorus loading : Higher temperature increases the rate of internal phosphorus loading, driving HABs (Jeppesen et al ; Matisoff et al ; Orihel et al ; Ding et al ). Support for this hypothesis occurs if water or summer air temperature is an important predictor of TP with a positive drift coefficient, and TP is an important predictor of HABs with a positive drift coefficient. Load driving : Greater precipitation amounts increase nutrient loading, driving HABs (Reichwaldt and Ghadouani ; Michalak et al ).…”

Section: Methodsmentioning

confidence: 99%

“…This occurs through increased growth rates of harmful cyanobacterial species relative to other species (Paerl and Huisman ; Carey et al ; Visser et al ), through extending of the summer growing season (Anneville et al ; Deng et al ; Visser et al ) and through increased vertical stratification resulting in greater fitness by cyanobacteria that are able to regulate their buoyancy (Wagner and Adrian ; Carey et al ; Posch et al ; Taranu et al ; Visser et al ). Higher temperature also increases internal phosphorus loading from sediments through increased rates of soil diffusivity and increased rates of soil phosphorus regeneration (Matisoff et al ), and this internal phosphorus source has been shown be a significant proportion of the overall phosphorus budget in some lakes (Jeppesen et al ; Ho and Michalak ; Orihel et al ; Ding et al ). Second, greater overall precipitation and more extreme precipitation events are hypothesized to increase HABs through the generation of greater nutrient runoff (Reichwaldt and Ghadouani ; Michalak et al ), although this could be balanced by greater precipitation flushing nutrient‐rich waters out of the ecosystem prior to bloom formation (Anderson et al ; Reichwaldt and Ghadouani ).…”

mentioning

confidence: 99%

See 1 more Smart Citation

Exploring temperature and precipitation impacts on harmful algal blooms across continental U.S. lakes

Michalak

2019

Limnology & Oceanography

116

View full text Add to dashboard Cite

Climate change is expected to impact the severity of harmful algal blooms in lakes and reservoirs through a number of mechanisms related to the influence of warming temperatures and changes to precipitation patterns. Evidence on the prevalence of individual mechanisms is lacking, however, with knowledge of many mechanisms restricted to studies of individual or small subsets of lakes. Here, we leverage over twelve hundred summertime lake observations from across the continental U.S. to explore evidence for the hypothesized risks from climate change attributable to specific mechanisms. Using a statistical model selection approach, we examine associations between temperature and precipitation variables and indicators of total phytoplankton abundance, species dominance, and toxicity. We find evidence in support of the hypotheses that summer temperatures drive total abundance, that the length of the summer drives cyanobacterial abundance, and that increased temperatures may reduce the observed toxicity of blooms in some cases. We find that nutrient concentrations are also likely to be impacted by lake warming, as increased temperatures are robustly associated with increased total phosphorus concentrations. Evidence for the impact of precipitation is mixed, however, as there is evidence to support that increased nutrient runoff from precipitation could support blooms but also that nutrient concentrations could be reduced through greater flushing due to precipitation. While statistical associations are not definitive evidence of formal mechanistic links, the geographic scale of the results is useful for identifying hypothesized mechanisms that are widespread across the continental U.S., and therefore for informing understanding of the influence of climate change. Ho and MichalakClimatic impacts on harmful algal blooms

show abstract

Section: Methodsmentioning

confidence: 99%

mentioning

confidence: 99%

Exploring temperature and precipitation impacts on harmful algal blooms across continental U.S. lakes

Michalak

2019

Limnology & Oceanography

116

View full text Add to dashboard Cite

show abstract

“…However, bioavailable phosphorus could be supplemented when required by enzymatic hydrolysis of EHP. There are numerous nutrient supplementation pathways for freshwater lakes, such as nitrogen fixation from the atmosphere (Jean, Cassar, Setzer, & Bellenger, ), release of nutrients from sediments (Cao, Wang, He, Luo, & Zheng, ; Ding et al., , ), and microbial activity (Bai et al., ). Recent study indicated that Fe‐P‐S system in water–sediment interface has great impacts on phosphorus circulation in aquatic systems (Chen et al., ).…”

Section: Resultsmentioning

confidence: 99%

Nutrient limitation and enzymolysis of phosphorus in Meiliang Bay, Lake Taihu, during algal blooms

Jiang

Zhou

et al. 2019

Water Environment Research

View full text Add to dashboard Cite

In this study, algal growth potential tests were performed in water samples collected from six sampling sites in Meiliang Bay, Lake Taihu. The potential release of soluble reactive phosphorus (SRP) by enzymatic hydrolysis of enzymatically hydrolyzable phosphorus (EHP) was simultaneously evaluated. Results show that all studied regions were in highly eutrophic states, with additional nitrogen (N) or phosphorus (P) inputs, inducing negligible further increase in algal growth. EHP in water could be rapidly transformed into SRP, further supporting the proliferation of algal blooms. The shortest EHP mineralization time was calculated as 69 minutes; therefore, limiting specific nutrient inputs alone in extremely eutrophic lakes can have a limited effect on suppressing the proliferation of algal blooms. Methods to establish a suitable environmental fate for excessive nitrogen and phosphorus nutrients may be more effective and provide more significant results. Practitioner points N and P were no longer serving as the limiting factors in Meiliang Bay. Enzymatically hydrolysable phosphorus could be hydrolyzed into soluble reactive phosphorus in a very short period during algal blooms. Both enzymatically hydrolysable phosphorus and soluble reactive phosphorus are required to be curbed in practical eutrophication control.

show abstract

“…In addition, this process decreased the pore water soluble Fe(II), overlying water soluble Fe(II) and DGT-labile Fe by 16% ( Figure 6). The newly formed Fe(III) oxyhydroxides adsorbed SRP and DGTlabile P from overlying water and sediments (Einsele 1936;Søndergaard et al 2003;Ding et al 2018;Giles et al 2016), fixed the P into sediment as NaOH-P (Chen et al 2015;Lewandowski et al 2007), decreased the SRP and DGT-labile P concentrations in overlying water and sediments (Figures 2, 3), and increased the NaOH-P in the surface 0-0.5 cm sediments ( Figure 5). Moreover, the R value in the aerobic sediments was lower than that in the control sediments (Table 2), indicating that the SRP replenishment abilities of sediment particles in the aerobic group were lower than those of the control group (Harper et al 1998).…”

Section: Discussionmentioning

confidence: 99%

Effects Of Short-Term Aerobic Conditions On Phosphorus Mobility In Sediments

Yan

Liu

et al. 2019

Journal of Freshwater Ecology

View full text Add to dashboard Cite

In this study, the effects of short-term aerobic conditions on phosphorus (P) mobility in sediment were investigated in the eutrophic lakes. To accomplish this, an indoor cultivation system was established and short-term cultivation (3, 8 and 15 days) was conducted under control and aerobic treatments. High-resolution diffusive gradients in thin films (DGT) and dialysis (HR-Peeper) techniques were used to determine the mobility patterns of P in sediments. The results showed that: (1) Aerobic treatment significantly increased oxygen concentrations (maximum 17.1%) in overlying water within 15 days, with no significant effects on sediment oxygen penetration depth or redox potential. Additionally, aerobic treatment inhibited soluble reactive phosphorus (SRP) and DGT-labile P release from sediment to overlying water. (2) Aerobic treatment decreased the pore water SRP and soluble Fe(II) on day 3 with no impact on sediment SRP/DGT-labile P and soluble/DGT-labile Fe on day 8 and 15.(3) Model simulation using DGT Induced Fluxes in Sediments (DIFS) showed that the pore water SRP replenishment ability of sediment particle P was lower in the aerobic group than the control group, and the sediment system equilibration time was elongated after pore water SRP decreased in the aerobic group on day 3. (4) On day 3, SRP and soluble Fe(II), DGT-labile P and DGT-labile Fe showed significant positive correlations (r > 0.888, p < 0.001), indicating that reduced pore water SRP concentration was related to decreased pore water soluble Fe(II).

show abstract

Internal phosphorus loading from sediments causes seasonal nitrogen limitation for harmful algal blooms

Cited by 247 publications

References 66 publications

Exploring temperature and precipitation impacts on harmful algal blooms across continental U.S. lakes

Exploring temperature and precipitation impacts on harmful algal blooms across continental U.S. lakes

Nutrient limitation and enzymolysis of phosphorus in Meiliang Bay, Lake Taihu, during algal blooms

Effects Of Short-Term Aerobic Conditions On Phosphorus Mobility In Sediments

Contact Info

Product

Resources

About