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Study shows reforestation in Lower Mississippi Valley reduces sediment
Date:12/2/2013

uvial Valley watershedsthe large Lower Yazoo River Watershed and the smaller Peters Creek Watershedto model the effects of reforestation in or near the battures on water outflow and sediment load (the amount of solid material carried by a river or stream). They performed two simulations, the first to predict water outflow and sediment load without reforestation, the second to project over 10 years the potential impacts of converting different levels25, 50, 75, and 100 percentof the land to forest in or near the battures.

"Comparing simulation results with and without reforestation showed that converting agricultural lands close to streams into forests would greatly lessen water outflow and reduce the effects of sediment load as far as the Gulf of Mexico," says Ouyang, lead author of the article and research hydrologist at the SRS Center for Bottomland Hardwoods Research. "In general, the larger the area converted, the greater the effect. For the Lower Yazoo River watershed, a two-fold increase in forest land area would result in approximately a two-fold reduction in the annual volume of water outflow and the mass of sediment load moving into the river."


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Contact: Ying Ouyang
youyang@fs.fed.us
662-325-8654
USDA Forest Service ‑ Southern Research Station
Source:Eurekalert

Page: 1 2

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