Floodplain capacity to depollute water in relation to the structure of biological communities

Comı́n, Francisco A.; Sánchez‐Pérez, José Miguel; Español, Cecilia; Carranza, Fabián; Sauvage, Sabine; Antigüedad, Iñaki; Zabaleta, Ane; Martínez‐Santos, Miren; Gérino, Magali; Yao, Jing; Pozo, José María Bodoque del; Ladera, Julian; Yela, José Luís; Teissier, Samuel; Bernard-Jannin, Léonard; Sun, Xiaoling; Navarro, Enrique; Pinelli, Éric; Chamsi, Ousama; Neves, Ramiro; Brito, David; Ruiz, E.; Uriarte, Jesús A.; Jiménez, Juan J.; García, Mercedes García; Barcos, Alberto; Sorando, Ricardo

doi:10.1016/j.ecoleng.2016.06.007

Cited by 7 publications

(2 citation statements)

References 67 publications

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“…We observed strong reductions of total PCDD + PCDF + dl-PCB concentration (33%) and TEQ concentration (38%) during stable flow in the river section between the Koniecpol and Sulejów sampling stations (100.4 km length of river section): a sector covered by natural vegetation (forests cover 45.43% of the total subcatchment area, Table 1SI), dominated by riparian willow communities. These results indicate that the presence of natural floodplain terraces in river valleys significantly increases the rate of self-purification of the river 42,43 , and can reduce the transport of PCDDs/PCDFs and dl-PCBs along the river continuum. Similar findings have been noted by Bayley 44 , Burt et al .…”

Section: Resultsmentioning

confidence: 84%

An ecohydrological approach to the river contamination by PCDDs, PCDFs and dl-PCBs – concentrations, distribution and removal using phytoremediation techniques

Urbaniak

Kiedrzyńska

Wyrwicka

et al. 2019

Sci Rep

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The levels of polychlorinated dibenzo-p-dioxins (PCDDs), polychlorinated dibenzofurans (PCDFs) and dioxin-like polychlorinated biphenyls (dl-PCBs) in the Pilica River and Sulejów Reservoir were found to be 46% higher during the flood season than during stable flow periods. In addition, PCDD/PCDF and dl-PCB mass loads increased by 5- to 12-fold and by 23- to 60-fold for toxic equivalency (TEQ) during flooding. The Sulejów Reservoir was found to play a positive role in reducing PCDD, PCDF and dl-PCB transport within the study period, with reductions ranging from 17 to 83% for total concentrations, and 33 to 79% for TEQ. Wastewater Treatment Plants (WTPs) were not efficient at mass concentration removal, with small displaying the least efficiency. WTPs discharge pollutants into the aquatic environment, they also produce sludge that requires disposal, similar to reservoir sediments. Sludge- or sediment-born PCDDs, PCDFs and dl-PCBs may be removed using phytoremediation. The cultivation of cucumber and zucchini, two efficient phytoremediators of organic pollutants, on polluted substrate resulted in a mean decrease in PCDD + PCDF + dl-PCB TEQ concentrations: 64% for cucumber and 69% for zucchini in sludge-amended soil, and by 52% for cucumber and 51% for zucchini in sediment-amended soil.

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Section: Resultsmentioning

confidence: 84%

An ecohydrological approach to the river contamination by PCDDs, PCDFs and dl-PCBs – concentrations, distribution and removal using phytoremediation techniques

Urbaniak

Kiedrzyńska

Wyrwicka

et al. 2019

Sci Rep

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“…The best practice in terms of riverine systems is to protect and/or sustainably manage floodplains (Palmer et al, 2005;Verhoeven et al, 2006;Comin et al, 2017). In regions where agricultural land use has left the stream corridors intact, most basin drainage can move through the riparian zones of first-and second-order headwater streams with continuous riparian buffers on both sides of these streams (Correll, 2005).…”

Section: Riparian Buffer Zonesmentioning

confidence: 99%

Planning and establishment principles for constructed wetlands and riparian buffer zones in agricultural catchments

Mander

Tournebize

Tonderski

et al. 2017

Ecological Engineering

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Microbial Community Functional Potential and Composition Are Shaped by Hydrologic Connectivity in Riverine Floodplain Soils

et al. 2016

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Riverine floodplains are ecologically and economically valuable ecosystems that are heavily threatened by anthropogenic stressors. Microbial communities in floodplain soils mediate critical biogeochemical processes, yet we understand little about the relationship between these communities and variation in hydrologic connectivity related to land management or topography. Here, we present metagenomic evidence that differences among microbial communities in three floodplain soils correspond to a long-term gradient of hydrologic connectivity. Specifically, all strictly anaerobic taxa and metabolic pathways were positively associated with increased hydrologic connectivity and flooding frequency. In contrast, most aerobic taxa and all strictly aerobic pathways were negatively related to hydrologic connectivity and flooding frequency. Furthermore, the genetic potential to metabolize organic compounds tended to decrease as hydrologic connectivity increased, which may reflect either the observed concomitant decline of soil organic matter or the parallel increase in both anaerobic taxa and pathways. A decline in soil N, accompanied by an increased genetic potential for oligotrophic N acquisition subsystems, suggests that soil nutrients also shape microbial communities in these soils. We conclude that differences among floodplain soil microbial communities can be conceptualized along a gradient of hydrologic connectivity. Additionally, we show that these differences are likely due to connectivity-related variation in flooding frequency, soil organic matter, and soil N. Our findings are particularly relevant to the restoration and management of microbially mediated biogeochemical processes in riverine floodplain wetlands.

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Floodplain capacity to depollute water in relation to the structure of biological communities

Cited by 7 publications

References 67 publications

An ecohydrological approach to the river contamination by PCDDs, PCDFs and dl-PCBs – concentrations, distribution and removal using phytoremediation techniques

An ecohydrological approach to the river contamination by PCDDs, PCDFs and dl-PCBs – concentrations, distribution and removal using phytoremediation techniques

Planning and establishment principles for constructed wetlands and riparian buffer zones in agricultural catchments

Microbial Community Functional Potential and Composition Are Shaped by Hydrologic Connectivity in Riverine Floodplain Soils

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