TY - CHAP
T1 - Sedimentation processes in lakes
AU - Håkanson, Lars
PY - 2012
Y1 - 2012
N2 - Lake sediments are an important, integral part of the lake ecosystem. They reflect changes in land-use and lake characteristics and are often regarded as an historical archive. They also affect the present structure and function of lake ecosystems. Suspended particulate matter (SPM) in lakes mainly emanate from tributaries (allochthonous matter), from living and dead matter produced in the lake (autochthonousmatter), or from resuspendedmaterials. SPMregulates the transport of all types of water pollutants in dissolved and particulate phases; it regulates water clarity and the depth of the photic zone, and hence also primary and secondary production; it regulates bacterioplankton production and biomass, and hence also mineralization, oxygen consumption, and oxygen concentrations; and it regulates sedimentation, and hence also the use of sediments as an historical archive, e.g., of water pollutants. These matters are discussed in this chapter. The aim of the information given is to structure existing knowledge on the factors regulating variations among and within aquatic systems of suspended particulate matter in a rational manner. This knowledge is fundamental for an understanding of the function and structure of aquatic systems.
AB - Lake sediments are an important, integral part of the lake ecosystem. They reflect changes in land-use and lake characteristics and are often regarded as an historical archive. They also affect the present structure and function of lake ecosystems. Suspended particulate matter (SPM) in lakes mainly emanate from tributaries (allochthonous matter), from living and dead matter produced in the lake (autochthonousmatter), or from resuspendedmaterials. SPMregulates the transport of all types of water pollutants in dissolved and particulate phases; it regulates water clarity and the depth of the photic zone, and hence also primary and secondary production; it regulates bacterioplankton production and biomass, and hence also mineralization, oxygen consumption, and oxygen concentrations; and it regulates sedimentation, and hence also the use of sediments as an historical archive, e.g., of water pollutants. These matters are discussed in this chapter. The aim of the information given is to structure existing knowledge on the factors regulating variations among and within aquatic systems of suspended particulate matter in a rational manner. This knowledge is fundamental for an understanding of the function and structure of aquatic systems.
UR - https://res.slu.se/id/publ/132291
U2 - 10.1007/978-1-4020-4410-6_3
DO - 10.1007/978-1-4020-4410-6_3
M3 - Book chapter
SN - 978-1-4020-5616-1
T3 - Encyclopedia of earth sciences
SP - 701
EP - 710
BT - Encyclopedia of Lakes and Reservoirs
PB - Springer
ER -