Dataset Information

Forest understories controlled the soil organic carbon stock during the fallow period in African tropical forest: a ¹³C analysis.

ABSTRACT: Soil organic carbon (SOC) dynamics after slash-burn agriculture are poorly understood in African tropical forest, though recent studies have revealed C4 grass invasion as a forest understory influences SOC dynamics after deforestation. This study aimed to quantify the relative SOC contribution of C4 and C3 plants separately through the sequential fallow periods of forest (cropland, or 4-7, 20-30, or >50 years of fallow forest) in the tropical forest of eastern Cameroon. We evaluated the SOC stock and natural ¹³C abundance for each layer. The SOC stock was largest in 4-7 years fallow forest (136.6?±?8.8 Mg C ha^-1; 100?cm depth, and C4:C3?=?58:42), and decreased with increasing fallow period. SOC from C4 plants was larger in the 4-7 and 20-30 years fallow forests (57.2-60.4?±?5.8 Mg C ha^-1; 100?cm depth), while it clearly decreased in >50 years fallow forest (35.0?±?4.1 Mg C ha^-1; 100?cm depth), resulting in the smallest SOC in this mature forest (106.4?±?12.9 Mg C ha^-1; 100?cm depth). These findings indicate that C4 grass understories contributed to the SOC restoration during early fallow succession in the tropical forest of eastern Cameroon.

SUBMITTER: Sugihara S

PROVIDER: S-EPMC6614393 | biostudies-literature | 2019 Jul

REPOSITORIES: biostudies-literature

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Forest understories controlled the soil organic carbon stock during the fallow period in African tropical forest: a <sup>13</sup>C analysis.

Sugihara Soh S Shibata Makoto M Mvondo Ze Antoine D AD Tanaka Haruo H Kosaki Takashi T Funakawa Shinya S

Scientific reports 20190708 1

Soil organic carbon (SOC) dynamics after slash-burn agriculture are poorly understood in African tropical forest, though recent studies have revealed C4 grass invasion as a forest understory influences SOC dynamics after deforestation. This study aimed to quantify the relative SOC contribution of C4 and C3 plants separately through the sequential fallow periods of forest (cropland, or 4-7, 20-30, or >50 years of fallow forest) in the tropical forest of eastern Cameroon. We evaluated the SOC stoc ...[more]

PMID: 31285565

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Dataset Information

Forest understories controlled the soil organic carbon stock during the fallow period in African tropical forest: a ¹³C analysis.

Publications

Forest understories controlled the soil organic carbon stock during the fallow period in African tropical forest: a <sup>13</sup>C analysis.

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Dataset Information

Forest understories controlled the soil organic carbon stock during the fallow period in African tropical forest: a 13C analysis.

Publications

Forest understories controlled the soil organic carbon stock during the fallow period in African tropical forest: a <sup>13</sup>C analysis.

Similar Datasets

OmicsDI is part of the ELIXIR infrastructure

Tweets

Forest understories controlled the soil organic carbon stock during the fallow period in African tropical forest: a ¹³C analysis.