alluvium

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Related to alluvial soil: Black Soil

alluvium

The material deposited on land by virtue of the process of accretion. The accretion process occurs when rivers or other waters deposit silt and mud on land,and thus create more land; the silt and mud making up the new land is called alluvium.

References in periodicals archive ?
In 1907, the boll weevil crossed the Mississippi River, but the rich alluvial soil gave the Delta cotton some resistance.
Specimens were collected in an area of sandy, alluvial soils dominated by wild plum (Prunus sp.
Case 1: Method 1 was used; the fine content ratio Fc of the silty or clayey sand and silt in the alluvial soil layer were 30% and 60%, respectively.
0 mg/kg for Cai Lay alluvial rice soil, Hoa An ASS, Cho Moi upland alluvial soil, and Tan Lap acid sulfate upland soil samples, respectively.
Organic C varied significantly among the soils and was 4-7 times higher in the landfill soils than in the alluvial soil.
The in situ measurements lasted 84 days for the ferrallitic soil and 165 days for the alluvial soil.
The fertile alluvial soils of the Mississippi Delta have been built up by repeated cycles of seasonal flooding, but current floodplain management often restricts flooding in agricultural and urban areas.
Burrowing earthworms inhabiting flood land biogeocenosis of cryosolic alluvial soils are characterized by capability of using all soil profile from litter to pedogenic rock.
Site 8 is on an Aeolian Soil (Arenic Rudosol) and Sites 13, 16 and 24 are on Alluvial Soils (Stratic Rudosols).
Patches of sandy loam nearby are less exciting, but the intensively cultivated alluvial soils that run towards the River Dordogne are not good news.
The auger drill will be used to collect soil samples from 12 to 15 meters depth, below the alluvial soils which might otherwise mask the geochemical signature of any metal deposits under these marshes.
60 gm/cc Water content (w) 13 22 17-27 Fines (%) 55 44 73-93 Table 3: Laboratory test results of index and compressibility characteristics of alluvial soils Liquid Void Plasticity Sample limit ratio Index No.