Restoration of a severely impacted riparian wetland system — The Pen Branch Project

Barton, Christopher D.; Nelson, Eric; Kolka, Randall K.; McLeod, Kenneth W.; Conner, William H.; Lakly, Michelle B.; Martin, Douglas J.; Wigginton, John D.; Trettin, Carl C.; Wisniewski, Joe

doi:10.1016/s0925-8574(99)00084-1

Cited by 11 publications

(6 citation statements)

References 13 publications

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“…Carbon content is hence significantly and positively correlated with the clay content in alluvial deposits (Bai et al, 2005;Cabezas and Comin, 2010). For a given hydrological regime, a causal relationship may exist between organic carbon concentrations and average soil moisture (Barton et al, 2000). Organic carbon dynamics in alluvial soils may also be modified by human disturbance mainly due to changes of natural flood dynamics (river diversion, dam; Tockner and Stanford, 2002) and/ or changes in vegetation composition (tree cutting, plantation, exotic plant invasion; Gerber et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

Carbon storage and soil organic matter stabilisation in near-natural, restored and embanked Swiss floodplains

et al. 2014

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Over recent decades, the number of floodplain restoration projects has increased worldwide. In Switzerland, several projects have been implemented to maintain or recreate ecological functions of floodplains. Despite this, little is known about the potential of floodplain soils to release and/or accumulate carbon. In alluvial soils, carbon storage is strongly influenced by fluvial dynamics, and therefore a better understanding of carbon fluxes and stocks in such settings is clearly needed. To evaluate the impact of river restoration on carbon storage in alluvial soils, we aimed to quantify and explain carbon storage and soil organic matter (SOM) stabilisation in the uppermost soil humic layer. Three floodplains were investigated showing each of them different levels of human disturbance: a near-natural section along the Rhine River, and both restored and embanked sections along the Thur River and Emme River. Carbon storage was determined by total organic carbon (TOC) stocks. SOM stabilisation was evaluated by considering the TOC content in different granulometric fractions (1000-2000 μm, 500-1000 μm, and 250-500 μm) and the macroaggregate formation, i.e. the abundance of water-stable aggregates (WSA) and the mean weight diameter of macro-aggregates (MWD). Our results show that the carbon storage and SOM stabilisation parameters were all related to soil properties such as clay, silt and total iron contents of the upper humic layer. Within each floodplain, carbon storage and SOM stabilisation parameters differed according to soil profile groups, thus reflecting a soil gradient evolution from bare alluvium soils to more stabilised soils and a hydric functioning (soils with hydromorphic features). In addition, river restoration showed various impacts on carbon storage and SOM stabilisation parameters depending on the floodplains, with a significant difference between embanked and restored sections for the Emme floodplain and no difference for the Thur floodplain.

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Section: Introductionmentioning

confidence: 99%

Carbon storage and soil organic matter stabilisation in near-natural, restored and embanked Swiss floodplains

et al. 2014

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“…However, from 1954 to 1988, portions of the flood plain forest vegetation were killed by hot water effluents from reactor facilities. These areas have either regenerated naturally over the last several decades or were planted (Barton et al 2000). In these forests, the wildland fuels present to carry a fire are primarily litter, twigs, and branches.…”

Section: Forest and Fire Historymentioning

confidence: 99%

Predicted cumulative dose to firefighters and the offsite public from natural and anthropogenic radionuclides in smoke from wildland fires at the Savannah River Site, South Carolina USA

Viner

Jannik

Hepworth

et al. 2018

Journal of Environmental Radioactivity

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The contaminated ground surface at Savannah River Site (SRS) is a result of the decades of work that has been performed maintaining the country's nuclear stockpile and performing research and development on nuclear materials. The volatilization of radionuclides during wildfire results in airborne particles that are dispersed within the smoke plume and may result in doses to downwind firefighters and the public. To better understand the risk that these smoke plumes present, we have characterized four regions at SRS in terms of their fuel characteristics and radiological contamination on the ground. Combined with general meteorological conditions describing typical and extreme burn conditions, we have simulated potential fires in these regions and predicted the potential radiological dose that could be received by firefighting personnel and the public surrounding the SRS. In all cases, the predicted cumulative dose was a small percent of the US Department of Energy regulatory limit (0.25 mSv). These predictions were conservative and assumed that firefighters would be exposed for the duration of their shift and the public would be exposed for the entire day over the duration of the burn. Realistically, firefighters routinely rotate off the firefront during their shift and the public would likely remain indoors much of the day. However, we show that even under worst-case conditions the regulatory limits are not exceeded. We can infer that the risks associated with wildfires would not be expected to cause cumulative doses above the level of concern to either responding personnel or the offsite public.

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“…When reactor operations ceased, attention turned to the restoration of wetland forest communities in these highly disturbed sites. SREL and USFS-SR researchers collaborated with other scientists in studying methods to restore the floodplain forests along Pen Branch and Four Mile Creek, two of the thermally impacted streams (e.g., McLeod 2000, Barton et al 2000). Research focused on selection of appropriate species and planting techniques for restoration.…”

Section: Impacts To Floodplain Wetlands and Restorationmentioning

confidence: 99%

Proceedings of the Partners Along the Fall Line: Sandhills Ecology and Ecosystem Management Workshop""

Lozar¹,

Balbach²,

Goran³

et al. 2002

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The contents of this report are not to be used for advertising, publication, or promotional purposes. Citation of trade names does not constitute an official endorsement or approval of the use of such commercial products. All product names and trademarks cited are the property of their respective owners. The findings of this report are not to be construed as an official Department of the Army position unless so designated by other authorized documents.

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Restoration of a severely impacted riparian wetland system — The Pen Branch Project

Cited by 11 publications

References 13 publications

Carbon storage and soil organic matter stabilisation in near-natural, restored and embanked Swiss floodplains

Carbon storage and soil organic matter stabilisation in near-natural, restored and embanked Swiss floodplains

Predicted cumulative dose to firefighters and the offsite public from natural and anthropogenic radionuclides in smoke from wildland fires at the Savannah River Site, South Carolina USA

Proceedings of the Partners Along the Fall Line: Sandhills Ecology and Ecosystem Management Workshop""

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