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Lake evolution in a semi-arid montane environment: response to catchment change and hydroclimatic variation

Research output: Contribution to Journal/Magazine › Journal article › peer-review

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Lake evolution in a semi-arid montane environment: response to catchment change and hydroclimatic variation. / Lamb, H.; Roberts, N.; Leng, M. et al.
In: Journal of Paleolimnology, Vol. 21, No. 3, 03.1999, p. 325-343.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Lamb, H, Roberts, N, Leng, M, Barker, P, Benkaddour, A & van der Kaars, S 1999, 'Lake evolution in a semi-arid montane environment: response to catchment change and hydroclimatic variation', Journal of Paleolimnology, vol. 21, no. 3, pp. 325-343. https://doi.org/10.1023/A:1008099602205

APA

Lamb, H., Roberts, N., Leng, M., Barker, P., Benkaddour, A., & van der Kaars, S. (1999). Lake evolution in a semi-arid montane environment: response to catchment change and hydroclimatic variation. Journal of Paleolimnology, 21(3), 325-343. https://doi.org/10.1023/A:1008099602205

Vancouver

Lamb H, Roberts N, Leng M, Barker P, Benkaddour A, van der Kaars S. Lake evolution in a semi-arid montane environment: response to catchment change and hydroclimatic variation. Journal of Paleolimnology. 1999 Mar;21(3):325-343. doi: 10.1023/A:1008099602205

Author

Lamb, H. ; Roberts, N. ; Leng, M. et al. / Lake evolution in a semi-arid montane environment: response to catchment change and hydroclimatic variation. In: Journal of Paleolimnology. 1999 ; Vol. 21, No. 3. pp. 325-343.

Bibtex

@article{9b422639f69b431fbea999b142a5aeee,
title = "Lake evolution in a semi-arid montane environment: response to catchment change and hydroclimatic variation",
abstract = "Pollen, geochemical and sedimentological data from Sidi Ali, a montane Moroccan lake, provide a 7000 yr record of changes in climate, catchment vegetation and soil erosion intensity. Diatoms, non-silicious algae, macrophyte fossils and ostracods from the same core record the dynamics of the lake ecosystem. Oxygen isotope and trace-element ratios of benthic ostracods appear to be relatively insensitive to climatic variation in this open lake with low water-residence time, but diatom plankton / periphyton (P/L) ratios show lake-level variations that are probably climate controlled. At least two superimposed processes are recorded, but at different timescales: catchment vegetation and soils show long-term changes due to climate and human impact, whereas P/L ratios suggest century-scale oscillations in lake depth. The timing of changes in algal and macrophyte productivity and carbon cycling within the lake broadly corresponds to changes in terrestrial vegetation, suggesting either that lake nutrient status is linked to catchment vegetation and soils, or that both were influenced by climate. The lack of a sensitive and independent (non-biological) climate proxy makes it more difficult to assess the lake''s ecological response to short-term climate variation. Overall, the lake''s evolution has been influenced both by catchment-mediated nutrient flux and by changes in water balance, thus having characteristics in common with both temperate and arid zone lakes.",
keywords = "pollen , diatoms , algae , ostracods , stable isotopes , palaeolimnology , Holocene , Morocco",
author = "H. Lamb and N. Roberts and M. Leng and P. Barker and A. Benkaddour and {van der Kaars}, S.",
note = "Mar Lake evolution in a semi-arid montane environment: response to catchment change and hydroclimatic variation Times Cited: 16",
year = "1999",
month = mar,
doi = "10.1023/A:1008099602205",
language = "English",
volume = "21",
pages = "325--343",
journal = "Journal of Paleolimnology",
issn = "0921-2728",
publisher = "Springer Netherlands",
number = "3",

}

RIS

TY - JOUR

T1 - Lake evolution in a semi-arid montane environment: response to catchment change and hydroclimatic variation

AU - Lamb, H.

AU - Roberts, N.

AU - Leng, M.

AU - Barker, P.

AU - Benkaddour, A.

AU - van der Kaars, S.

N1 - Mar Lake evolution in a semi-arid montane environment: response to catchment change and hydroclimatic variation Times Cited: 16

PY - 1999/3

Y1 - 1999/3

N2 - Pollen, geochemical and sedimentological data from Sidi Ali, a montane Moroccan lake, provide a 7000 yr record of changes in climate, catchment vegetation and soil erosion intensity. Diatoms, non-silicious algae, macrophyte fossils and ostracods from the same core record the dynamics of the lake ecosystem. Oxygen isotope and trace-element ratios of benthic ostracods appear to be relatively insensitive to climatic variation in this open lake with low water-residence time, but diatom plankton / periphyton (P/L) ratios show lake-level variations that are probably climate controlled. At least two superimposed processes are recorded, but at different timescales: catchment vegetation and soils show long-term changes due to climate and human impact, whereas P/L ratios suggest century-scale oscillations in lake depth. The timing of changes in algal and macrophyte productivity and carbon cycling within the lake broadly corresponds to changes in terrestrial vegetation, suggesting either that lake nutrient status is linked to catchment vegetation and soils, or that both were influenced by climate. The lack of a sensitive and independent (non-biological) climate proxy makes it more difficult to assess the lake''s ecological response to short-term climate variation. Overall, the lake''s evolution has been influenced both by catchment-mediated nutrient flux and by changes in water balance, thus having characteristics in common with both temperate and arid zone lakes.

AB - Pollen, geochemical and sedimentological data from Sidi Ali, a montane Moroccan lake, provide a 7000 yr record of changes in climate, catchment vegetation and soil erosion intensity. Diatoms, non-silicious algae, macrophyte fossils and ostracods from the same core record the dynamics of the lake ecosystem. Oxygen isotope and trace-element ratios of benthic ostracods appear to be relatively insensitive to climatic variation in this open lake with low water-residence time, but diatom plankton / periphyton (P/L) ratios show lake-level variations that are probably climate controlled. At least two superimposed processes are recorded, but at different timescales: catchment vegetation and soils show long-term changes due to climate and human impact, whereas P/L ratios suggest century-scale oscillations in lake depth. The timing of changes in algal and macrophyte productivity and carbon cycling within the lake broadly corresponds to changes in terrestrial vegetation, suggesting either that lake nutrient status is linked to catchment vegetation and soils, or that both were influenced by climate. The lack of a sensitive and independent (non-biological) climate proxy makes it more difficult to assess the lake''s ecological response to short-term climate variation. Overall, the lake''s evolution has been influenced both by catchment-mediated nutrient flux and by changes in water balance, thus having characteristics in common with both temperate and arid zone lakes.

KW - pollen

KW - diatoms

KW - algae

KW - ostracods

KW - stable isotopes

KW - palaeolimnology

KW - Holocene

KW - Morocco

U2 - 10.1023/A:1008099602205

DO - 10.1023/A:1008099602205

M3 - Journal article

VL - 21

SP - 325

EP - 343

JO - Journal of Paleolimnology

JF - Journal of Paleolimnology

SN - 0921-2728

IS - 3

ER -