Balancing lake ecological condition and agriculture irrigation needs in the Mississippi Alluvial Valley

Miranda, Leandro E.; Omer, A.R.; Killgore, K. J.

doi:10.1016/j.agee.2017.06.022

Cited by 5 publications

(1 citation statement)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Sediments of floodplain reservoirs become an N and P sink for the river, contributing to the improvement of river water quality [19]. Moreover, floodplain lakes trap nutrients and sediments from surface runoff, generally from agricultural sources, preventing it from entering the river [20,21]. Particular forms of autochthonous N and P depend on the conditions in the water body.…”

Section: Introductionmentioning

confidence: 99%

Small Floodplain Reservoirs in the Face of Climate Change—Sink or Source of Nutrients?

Gmitrowicz‐Iwan

Ligęza

Pranagal

et al. 2020

Water

View full text Add to dashboard Cite

Despite various water protection measures, good water quality and reduction of nutrient loads seem very distant goals, largely due to limited knowledge of processes occurring in river valleys. Our study aimed at establishing the role of small floodplain reservoirs in the eutrophication processes, in the face of recent climate changes. The content of phosphorus and nitrogen compounds was determined in sediments and water of small floodplain reservoirs, (the Vistula River Valley, Poland) using spectrophotometric and Kjeldahl’s method. Nutrient loads in sediments were linked to the texture and total organic carbon content. Seasonal changes in water quality were strictly connected to changing weather conditions, flood and drought. The concentrations of PO43− and NO3− were found to rise after summer flooding. Increases in NH4+, total phosphorus (TP) and total nitrogen (TN) were correlated with the surface water area reduction in the reservoirs, which during the year of the study was on average 62%. Therefore, small floodplain reservoirs could be considered simultaneously as sinks and sources of nutrients. On the one hand, they accumulate P and N compounds carried by the river during the flood. On the other hand, climate change cause that small floodplain reservoirs may be responsible for enhanced biomass production.

show abstract

Section: Introductionmentioning

confidence: 99%