ISSN:
1573-5117
Keywords:
lake sediment
;
sediment sources
;
soil erosion
;
magnetic measurements
;
Morocco
;
210Pb
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Abstract Dayat-er-Roumi is a small lake (73 ha) located in the sub-humid region of NE Morocco. Lake sediment and catchment soils are examined to identify areas of sediment supply to the lake. Magnetic measurements and clay mineralogy are used to show that recent lake sediment is derived predominantly from eroded topsoil. 210Pb dating of one sediment core provided a chronology for the calculation of sediment accumulation rates. The rate of sediment accumulation increased slowly throughout the earlier part of the 20th century and then rapidly in the mid-1970's. These increases are attributed to human disturbances in the catchment, initially by olive planting and then by drainage of a wetland area.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00006911
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