Low Carbon sink capacity of Red Sea mangroves

Hanan Almahasheer, Oscar Serrano, Carlos M. Duarte, Ariane Arias-Ortiz, Pere Masque, Xabier Irigoien

Research output: Contribution to journalArticle

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Abstract

Mangroves forests of Avicennia marina occupy about 135 km2 in the Red Sea and represent one of the most important vegetated communities in this otherwise arid and oligotrophic region. We assessed the soil organic carbon (Corg) stocks, soil accretion rates (SAR; mm y-1) and soil Corg sequestration rates (g Corg m-2 yr-1) in 10 mangrove sites within four locations along the Saudi coast of the Central Red Sea. Soil Corg density and stock in Red Sea mangroves were among the lowest reported globally, with an average of 4 ± 0.3 mg Corg cm-3 and 43 ± 5 Mg Corg ha-1 (in 1 m-thick soils), respectively. Sequestration rates of Corg, estimated at 3 ± 1 and 15 ± 1 g Corg m-2 yr-1 for the long (millennia) and short (last century) temporal scales, respectively, were also relatively low compared to mangrove habitats from more humid bioregions. In contrast, the accretion rates of Central Red Sea mangroves soils were within the range reported for global mangrove forests. The relatively low Corg sink capacity of Red Sea mangroves could be due to the extreme environmental conditions such as low rainfall, nutrient limitation and high temperature, reducing the growth rates of the mangroves and increasing soil respiration rates.

LanguageEnglish
Article number9700
JournalScientific Reports
Volume7
Issue number1
DOIs
StatePublished - 1 Dec 2017

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Rhizophoraceae
Carbon Sequestration
Indian Ocean
Soil
Wetlands
Avicennia
Respiratory Rate
Ecosystem
Carbon
Food
Temperature

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Almahasheer, H., Serrano, O., Duarte, C. M., Arias-Ortiz, A., Masque, P., & Irigoien, X. (2017). Low Carbon sink capacity of Red Sea mangroves. Scientific Reports, 7(1), [9700]. DOI: 10.1038/s41598-017-10424-9
Almahasheer, Hanan ; Serrano, Oscar ; Duarte, Carlos M. ; Arias-Ortiz, Ariane ; Masque, Pere ; Irigoien, Xabier. / Low Carbon sink capacity of Red Sea mangroves. In: Scientific Reports. 2017 ; Vol. 7, No. 1.
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Almahasheer, H, Serrano, O, Duarte, CM, Arias-Ortiz, A, Masque, P & Irigoien, X 2017, 'Low Carbon sink capacity of Red Sea mangroves' Scientific Reports, vol 7, no. 1, 9700. DOI: 10.1038/s41598-017-10424-9

Low Carbon sink capacity of Red Sea mangroves. / Almahasheer, Hanan; Serrano, Oscar; Duarte, Carlos M.; Arias-Ortiz, Ariane; Masque, Pere; Irigoien, Xabier.

In: Scientific Reports, Vol. 7, No. 1, 9700, 01.12.2017.

Research output: Contribution to journalArticle

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Almahasheer H, Serrano O, Duarte CM, Arias-Ortiz A, Masque P, Irigoien X. Low Carbon sink capacity of Red Sea mangroves. Scientific Reports. 2017 Dec 1;7(1). 9700. Available from, DOI: 10.1038/s41598-017-10424-9