. 2020

Losses of soil organic carbon with deforestation in mangroves of Madagascar (dataset)

Dipòsit Digital de Documents de la UAB
oai:ddd.uab.cat:216456
Dipòsit Digital de Documents de la UAB
  • Arias Ortiz, Ariane|||0000-0001-9408-0061
  • Masqué Barri, Pere|||0000-0002-1789-320X
  • Glass, Leah
  • Benson, Lisa
  • Kennedy, Hilary|||0000-0003-2290-2120
  • Duarte, Carlos M..|||0000-0002-1213-1361
  • Garcia-Orellana, Jordi|||0000-0002-0543-2641
  • Benitez-Nelson, Claudia|||0000-0002-1004-5048
  • Humphries, Marc S.|||0000-0002-4047-1451
  • Ratefinjanahary, Ismaël
  • Ravelonjatovo, Jaona
  • Lovelock, Catherine E.|||0000-0002-2219-6855
The database compiles data (in Arias-Ortiz et al. 2020) on biogeochemical characteristics (density, organic carbon and total nitrogen, stable carbon and nitrogen isotopes and sediment grain size) of mangrove forest soils in Tsimipaika Bay, Madagascar. Pb-210 concentrations of the first 40 cm are included. The dataset compiles data for a total of 10 cores (5 cores from an intact forest and 5 from a deforested area) along with surface water dissolved organic carbon (DOC) concentrations measured at 8 stations. Enquiries about the dataset may be sent to Ariane Arias-Ortiz: aariasortiz@berkeley.edu
 

DOI: https://ddd.uab.cat/record/216456, https://dx.doi.org/10.5565/ddd.uab.cat/216456
Dipòsit Digital de Documents de la UAB
oai:ddd.uab.cat:216456

HANDLE: https://ddd.uab.cat/record/216456, https://dx.doi.org/10.5565/ddd.uab.cat/216456
Dipòsit Digital de Documents de la UAB
oai:ddd.uab.cat:216456
 
Ver en: https://ddd.uab.cat/record/216456, https://dx.doi.org/10.5565/ddd.uab.cat/216456
Dipòsit Digital de Documents de la UAB
oai:ddd.uab.cat:216456

Dipòsit Digital de Documents de la UAB
oai:ddd.uab.cat:216456
. 2020

LOSSES OF SOIL ORGANIC CARBON WITH DEFORESTATION IN MANGROVES OF MADAGASCAR (DATASET)

Dipòsit Digital de Documents de la UAB
  • Arias Ortiz, Ariane|||0000-0001-9408-0061
  • Masqué Barri, Pere|||0000-0002-1789-320X
  • Glass, Leah
  • Benson, Lisa
  • Kennedy, Hilary|||0000-0003-2290-2120
  • Duarte, Carlos M..|||0000-0002-1213-1361
  • Garcia-Orellana, Jordi|||0000-0002-0543-2641
  • Benitez-Nelson, Claudia|||0000-0002-1004-5048
  • Humphries, Marc S.|||0000-0002-4047-1451
  • Ratefinjanahary, Ismaël
  • Ravelonjatovo, Jaona
  • Lovelock, Catherine E.|||0000-0002-2219-6855
The database compiles data (in Arias-Ortiz et al. 2020) on biogeochemical characteristics (density, organic carbon and total nitrogen, stable carbon and nitrogen isotopes and sediment grain size) of mangrove forest soils in Tsimipaika Bay, Madagascar. Pb-210 concentrations of the first 40 cm are included. The dataset compiles data for a total of 10 cores (5 cores from an intact forest and 5 from a deforested area) along with surface water dissolved organic carbon (DOC) concentrations measured at 8 stations. Enquiries about the dataset may be sent to Ariane Arias-Ortiz: aariasortiz@berkeley.edu




Dipòsit Digital de Documents de la UAB
oai:ddd.uab.cat:221189
Artículo científico (article). 2020

LOSSES OF SOIL ORGANIC CARBON WITH DEFORESTATION IN MANGROVES OF MADAGASCAR

Dipòsit Digital de Documents de la UAB
  • Arias Ortiz, Ariane|||0000-0001-9408-0061
  • Masqué Barri, Pere|||0000-0002-1789-320X
  • Glass, Leah
  • Benson, Lisa
  • Kennedy, Hilary|||0000-0003-2290-2120
  • Duarte, Carlos M..|||0000-0002-1213-1361
  • Garcia-Orellana, Jordi|||0000-0002-0543-2641
  • Benitez-Nelson, Claudia|||0000-0002-1004-5048
  • Humphries, Marc S.|||0000-0002-4047-1451
  • Ratefinjanahary, Ismaël
  • Ravelonjatovo, Jaona
  • Lovelock, Catherine E.|||0000-0002-2219-6855
Global mangrove deforestation has resulted in substantial CO2 emissions to the atmosphere, but the extent of emissions from soil organic carbon (C) loss remains difficult to assess. Here, we sampled five intact and five deforested mangrove plots from Tsimipaika Bay, Madagascar, to examine the loss of soil C in the 10 years since deforestation. We estimated tree biomass and analyzed grain size, 210Pb activities, organic C and total nitrogen (N) and their stable isotopes in soils as well as dissolved organic C in surface waters. Deforested soils revealed evidence of disturbance in the upper 14 g cm−2 (~40 cm) when compared to reference intact soils, indicated by lower porosity, higher dry bulk density, an order of magnitude higher soil mixing and loss of C and N despite no significant soil erosion. Although C loss from biomass was unequivocal and was estimated at 130 Mg C ha−1, the C loss from soils was more difficult to assess given the large heterogeneity of intact forest soils. We estimated that the loss of C due to mangrove clearing and soil exposure over 10 years was equivalent to about 20% of the upper meter soil C stock, and about 45% of the C stock accumulated during the last century. Soil C loss rate was 4.5 times higher than the C sequestration rate in reference intact soils. These results emphasize the importance of mangrove conservation for CO2 emissions mitigation, as they suggest that deforestation-C losses will take substantially longer to offset with mangrove restoration.




Recercat. Dipósit de la Recerca de Catalunya
oai:recercat.cat:2072/439674
Artículo científico (article).

LOSSES OF SOIL ORGANIC CARBON WITH DEFORESTATION IN MANGROVES OF MADAGASCAR

Recercat. Dipósit de la Recerca de Catalunya
  • Arias Ortiz, Ariane
  • Masqué Barri, Pere
  • Glass, Leah
  • Benson, Lisa
  • Kennedy, Hilary
  • Duarte, Carlos M.
  • García Orellana, Jordi
  • Benítez Nelson, Claudia R.
  • Humphries, Marc S.
  • Ratefinjanahary, Ismaël
  • Ravelonjatovo, Jaona
  • Lovelock, Catherine E.
  • Universitat Autònoma de Barcelona. Departament de Física
Unidad de excelencia María de Maeztu CEX2019-000940-M, Altres ajuts: "Obra Social la Caixa" (LCF/BQ/ES14/10320004) i Blue Forest Project Australian Research Council LIEF Project (LE170100219), Global mangrove deforestation has resulted in substantial CO2 emissions to the atmosphere, but the extent of emissions from soil organic carbon (C) loss remains difficult to assess. Here, we sampled five intact and five deforested mangrove plots from Tsimipaika Bay, Madagascar, to examine the loss of soil C in the 10 years since deforestation. We estimated tree biomass and analyzed grain size, 210Pb activities, organic C and total nitrogen (N) and their stable isotopes in soils as well as dissolved organic C in surface waters. Deforested soils revealed evidence of disturbance in the upper 14 g cm−2 (~40 cm) when compared to reference intact soils, indicated by lower porosity, higher dry bulk density, an order of magnitude higher soil mixing and loss of C and N despite no significant soil erosion. Although C loss from biomass was unequivocal and was estimated at 130 Mg C ha−1, the C loss from soils was more difficult to assess given the large heterogeneity of intact forest soils. We estimated that the loss of C due to mangrove clearing and soil exposure over 10 years was equivalent to about 20% of the upper meter soil C stock, and about 45% of the C stock accumulated during the last century. Soil C loss rate was 4.5 times higher than the C sequestration rate in reference intact soils. These results emphasize the importance of mangrove conservation for CO2 emissions mitigation, as they suggest that deforestation-C losses will take substantially longer to offset with mangrove restoration.