Details
| Original language | English |
|---|---|
| Article number | 108722 |
| Journal | CATENA |
| Volume | 250 |
| Early online date | 3 Feb 2025 |
| Publication status | Published - Mar 2025 |
Abstract
High net primary production and low soil organic carbon (SOC) decomposition rates ensure that mangroves are important carbon sink likely to be disturbed by rising sea level. The differences in environmental factors along land-sea gradients in mangrove forests influence SOC characteristics. Six typical intertidal zones of mangrove distribution in the subtropical and tropical regions of China were selected for this study. Each intertidal zone was divided into three sections, ranging from land to sea: the landward zone (LW), the middle zone (MZ), and the seaward zone (SW). This classification aimed to investigate the distribution of key driving factors influencing mangrove wetland SOC and its various fractions SOC and its different fractions. The average SOC content ranged between 15.85 and 37.08 g kg−1, and was 31 % and 57 % lower in MZ and SW than LW, respectively. Compared with LW, easily oxidizable-carbon (EOC) content in MZ and SW was 16 % and 58 % lower, and dissolved organic-carbon (DOC) content was 46 % and 67 % lower, respectively. Location affected the characteristics of the distribution of SOC fractions (p < 0.05). Vegetation biomass and total N and P contents were key driving factors affecting SOC content. Mangrove forest age was another important factor affecting SOC. LW environment had the largest total N and P content, leading to larger SOC, EOC and microbial biomass carbon content compared to MZ and SW. We highlight the environmental gradient divergence in the SOC in the intertidal zone found when systematically assessing the SOC pool function of the coastal zone, which warrants research into the SOC cycle in coastal wetlands. Rising sea levels may cover more current tidal mangrove areas and, if there is no space to move inland, current mangrove formations in more tidal areas could disappear. As a result, the C-stored in these mangrove communities could be eroded, sparced and lost.
Keywords
- Environmental gradients, Intertidal zone, Soil nutrients, Soil organic carbon fractions, Vegetation biomass
ASJC Scopus subject areas
- Earth and Planetary Sciences(all)
- Earth-Surface Processes
Sustainable Development Goals
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In: CATENA, Vol. 250, 108722, 03.2025.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Intertidal zonation of mangrove organic carbon fractions driven by vegetation biomass and soil nutrient levels
AU - Yin, Xiaolei
AU - Wang, Weiqi
AU - Zou, Yuanchun
AU - Song, Zhaoliang
AU - Sardans, Jordi
AU - Wiesmeier, Martin
AU - Guggenberger, Georg
AU - Li, Qiang
AU - Chen, Ji
AU - Peñuelas, Josep
N1 - Publisher Copyright: © 2025 Elsevier B.V.
PY - 2025/3
Y1 - 2025/3
N2 - High net primary production and low soil organic carbon (SOC) decomposition rates ensure that mangroves are important carbon sink likely to be disturbed by rising sea level. The differences in environmental factors along land-sea gradients in mangrove forests influence SOC characteristics. Six typical intertidal zones of mangrove distribution in the subtropical and tropical regions of China were selected for this study. Each intertidal zone was divided into three sections, ranging from land to sea: the landward zone (LW), the middle zone (MZ), and the seaward zone (SW). This classification aimed to investigate the distribution of key driving factors influencing mangrove wetland SOC and its various fractions SOC and its different fractions. The average SOC content ranged between 15.85 and 37.08 g kg−1, and was 31 % and 57 % lower in MZ and SW than LW, respectively. Compared with LW, easily oxidizable-carbon (EOC) content in MZ and SW was 16 % and 58 % lower, and dissolved organic-carbon (DOC) content was 46 % and 67 % lower, respectively. Location affected the characteristics of the distribution of SOC fractions (p < 0.05). Vegetation biomass and total N and P contents were key driving factors affecting SOC content. Mangrove forest age was another important factor affecting SOC. LW environment had the largest total N and P content, leading to larger SOC, EOC and microbial biomass carbon content compared to MZ and SW. We highlight the environmental gradient divergence in the SOC in the intertidal zone found when systematically assessing the SOC pool function of the coastal zone, which warrants research into the SOC cycle in coastal wetlands. Rising sea levels may cover more current tidal mangrove areas and, if there is no space to move inland, current mangrove formations in more tidal areas could disappear. As a result, the C-stored in these mangrove communities could be eroded, sparced and lost.
AB - High net primary production and low soil organic carbon (SOC) decomposition rates ensure that mangroves are important carbon sink likely to be disturbed by rising sea level. The differences in environmental factors along land-sea gradients in mangrove forests influence SOC characteristics. Six typical intertidal zones of mangrove distribution in the subtropical and tropical regions of China were selected for this study. Each intertidal zone was divided into three sections, ranging from land to sea: the landward zone (LW), the middle zone (MZ), and the seaward zone (SW). This classification aimed to investigate the distribution of key driving factors influencing mangrove wetland SOC and its various fractions SOC and its different fractions. The average SOC content ranged between 15.85 and 37.08 g kg−1, and was 31 % and 57 % lower in MZ and SW than LW, respectively. Compared with LW, easily oxidizable-carbon (EOC) content in MZ and SW was 16 % and 58 % lower, and dissolved organic-carbon (DOC) content was 46 % and 67 % lower, respectively. Location affected the characteristics of the distribution of SOC fractions (p < 0.05). Vegetation biomass and total N and P contents were key driving factors affecting SOC content. Mangrove forest age was another important factor affecting SOC. LW environment had the largest total N and P content, leading to larger SOC, EOC and microbial biomass carbon content compared to MZ and SW. We highlight the environmental gradient divergence in the SOC in the intertidal zone found when systematically assessing the SOC pool function of the coastal zone, which warrants research into the SOC cycle in coastal wetlands. Rising sea levels may cover more current tidal mangrove areas and, if there is no space to move inland, current mangrove formations in more tidal areas could disappear. As a result, the C-stored in these mangrove communities could be eroded, sparced and lost.
KW - Environmental gradients
KW - Intertidal zone
KW - Soil nutrients
KW - Soil organic carbon fractions
KW - Vegetation biomass
UR - http://www.scopus.com/inward/record.url?scp=85216688520&partnerID=8YFLogxK
U2 - 10.1016/j.catena.2025.108722
DO - 10.1016/j.catena.2025.108722
M3 - Article
AN - SCOPUS:85216688520
VL - 250
JO - CATENA
JF - CATENA
SN - 0341-8162
M1 - 108722
ER -