2014
DOI: 10.4081/jlimnol.2014.783
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Deposition, burial and sequestration of carbon in an oligotrophic, tropical lake

Abstract: The amount of biogenic carbon that may be deposited, buried and eventually preserved (sequestered)

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Cited by 19 publications
(8 citation statements)
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“…Quantitative samples of superficial sediment (top 3 cm) were collected from the deepest part of Atexcac, La Preciosa and Quechulac with an Eckman dredge (area = 0.0625 m 2 ), and a sample of mixed sediments obtained from several places at the shore of El Carmen. Sampling of the eggs contained in the superficial sediment layer allowed us to obtain a representative sample of genotypes produced during several years (at least 20 y at each lake if calculated on the sedimentation rate of 0.16 cm yr -1 measured in the neighboring Lake Alchichica [ 65 ]). Sediments were transported to the laboratory in total darkness at 4° C [ 66 ].…”
Section: Methodsmentioning
confidence: 99%
“…Quantitative samples of superficial sediment (top 3 cm) were collected from the deepest part of Atexcac, La Preciosa and Quechulac with an Eckman dredge (area = 0.0625 m 2 ), and a sample of mixed sediments obtained from several places at the shore of El Carmen. Sampling of the eggs contained in the superficial sediment layer allowed us to obtain a representative sample of genotypes produced during several years (at least 20 y at each lake if calculated on the sedimentation rate of 0.16 cm yr -1 measured in the neighboring Lake Alchichica [ 65 ]). Sediments were transported to the laboratory in total darkness at 4° C [ 66 ].…”
Section: Methodsmentioning
confidence: 99%
“…The OC burial rates values ranged from 11 g C m −2 yr −1 to 1123 g C m −2 yr −1 , with a true population mean from 154 to 378 (95% C.I.). These rates are several fold greater and significantly higher (Tukey‐Kramer; p < 0.05) than those reported for lakes in other climatic regions, including arctic (Sobek et al ), boreal (Ferland et al ), temperate (Dietz et al ) and tropical (Alcocer et al ) lakes (6 g C m −2 yr −1 , 2 g C m −2 yr −1 , 33 g C m −2 yr −1 , and 24 g C m −2 yr −1 , respectively) ( see Fig. for details), and in subtropical floodplain lakes (15 g C m −2 yr −1 ) (Dong et al ).…”
Section: Resultsmentioning
confidence: 66%
“… Organic carbon burial rates from lakes of the floodplain of three main river water types, i.e., whitewater 78 ± 14 ( n = 3), blackwater 203 ± 57 ( n = 13 cores), and clearwater 498 ± 124 ( n = 6) using original and previously published data (dark grey bars) compared to other freshwater lake types; arctic n = 7: 5.9 ± 1.3 SE (Sobek et al ), boreal n = 12: 19.6 ± 4.8 SE (Ferland et al ), temperate n = 116: 33 ± 2.1 SE (Dietz et al ), and tropical n = 2: 23.5 ± 5.5 SE (Sobek et al ; Alcocer et al ) (white bars). Different capital letters indicate significant difference ( p < 0.05) in carbon burial between lake types.…”
Section: Resultsmentioning
confidence: 99%
“…Nevertheless, increases in OC sedimentation outpaced the degradation process, suggesting that productivity is the process that enables shallow subtropical lakes to permanently sequester OC in the sediments. The average OC burial rate calculated for the pre-1950 period in our study lakes (61 g OC m -2 a -1 , Table 3) is still greater than the Arctic, boreal, temperate, subtropical, and tropical systems mentioned above [3942].…”
Section: Discussionmentioning
confidence: 75%
“…This rate is lower than tropical systems of the Amazon Basin (266 g C m -2 a -1 ) [7] and temperate agricultural impoundments (>1000 g C m -2 a -1 ) [6]. Nevertheless, the numbers from Florida’s subtropical lakes are higher than values measured in many Arctic (6 g C m -2 a -1 ) [39], boreal (2 g C m -2 a -1 ) [40], temperate (33 g C m -2 a -1 ) [41], and tropical (24 g C m -2 a -1 ) [42] systems. Our subtropical lakes yielded OC burial values similar to those from temperate lakes in agricultural landscapes (64–200 g C m -2 a -1 ) [5].…”
Section: Discussionmentioning
confidence: 99%