Evaluation of the carbon accumulation capability and carbon storage of different types of wetlands in the Nanhui tidal flat of the Yangtze River estuary

Dong, Haiqing; Liu, Qian; Yan, Jiahao; Wang, Lei

doi:10.1007/s10661-020-08547-0

Cited by 21 publications

(11 citation statements)

References 44 publications

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“…Because of the huge reserves of organic C, small changes of C pool in wetlands can greatly affect the atmospheric CO 2 concentration 2 . Therefore, dynamic changes in wetland C storage have a significant impact on the global C cycle and climate change 3 , 4 . In addition, the increasing global warming will contribute to the sink-source transformation due to increased soil organic carbon (SOC) decomposition.…”

Section: Introductionmentioning

confidence: 99%

“…Wetlands are the most ecological valuable ecosystems in the world, providing carbon sink 4 , 5 , biodiversity conservation, water purification, flood mitigation, coastal protection, and erosion control 8 – 10 . However, due to human disturbances, approximately half of wetlands in the world have been lost or degraded 11 .…”

Section: Introductionmentioning

confidence: 99%

“…Soil C sequestration is one of the important functions of wetlands. Ecological restoration of wetlands has been conducted worldwide, which is considered as an effective measure to regain SOC lost as a result of human disturbances 4 , 7 , 14 , 15 . In the past few decades, great efforts were made in evaluation of soil C storages and their C sequestration potentials in the different wetland ecosystems 4 , 7 , 14 .…”

Section: Introductionmentioning

confidence: 99%

“…Ecological restoration of wetlands has been conducted worldwide, which is considered as an effective measure to regain SOC lost as a result of human disturbances 4 , 7 , 14 , 15 . In the past few decades, great efforts were made in evaluation of soil C storages and their C sequestration potentials in the different wetland ecosystems 4 , 7 , 14 . The spatial distribution pattern of wetland SOC is influenced by a great number of factors, such as soil properties, climate, vegetation, hydrology, and land use patterns 7 , 16 , 17 .…”

Section: Introductionmentioning

confidence: 99%

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Distribution of SOCD along different offshore distances in China's fresh-water lake-Chaohu under different habitats

Yao

Wang²,

Xie

et al. 2022

Sci Rep

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Carbon storage in wetland ecosystems is an important part of the carbon cycle of terrestrial ecosystems and provides important ecosystem services. Chaohu Wetland is a typical freshwater lake wetland in China. In this study, soil and plant samples were collected every 500 m through three sample lines of different vegetation habitats (estuarine banks, woodlands and shrub beaches) and different offshore distances, revealing the spatial distribution characteristics of soil organic carbon density (SOCD) in Chaohu wetland. The overall SOCD of Chaohu wetland was low, with different habitats ranking as Woodland > Estuary and riverside > Shrub and beach. SOCD of different offshore distances had no obvious law, and the SOCD decreased significantly with soil depth. The plant biomass was significantly higher at the woodland habitat than at other habitats. Most of soil nutrient indicators were the highest at the woodland habitat, while the estuary-riverside habitat had the highest N and P contents. Soil and plant nutrients at different offshore distances had no obvious change patterns. The contents of soil K, Ca, Mg, and N were significantly positively correlated with SOCD, but soil bulk density and pH were significantly negatively correlated with SOCD, and vegetation P content was significantly negatively correlated with SOCD. The spatial pattern of SOCD changes in this lake coastal wetland was determined by the combined effects of plant nutrients, biomass, and soil physical and chemical properties. Our results indicate Chaohu wetlands may have been experiencing serious degradation. The SOCD of Chaohu wetland is lower than that of other wetlands in China, which is mainly affected by human activities. Different offshore distances and habitat heterogeneity are the main factors affecting the soil carbon cycle of the wetland.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Distribution of SOCD along different offshore distances in China's fresh-water lake-Chaohu under different habitats

Yao

Wang²,

Xie

et al. 2022

Sci Rep

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“…Although wetlands cover only about 5-8% of the world's terrestrial area, their soil organic carbon (SOC) stock accounts for 20-30% or more of global SOC stocks [1]. Wetlands exhibit the highest carbon density among terrestrical ecosystems, they are typically carbon sinks [2,3]. Therefore, wetlands play an important role in global climate change mitigation.…”

Section: Introductionmentioning

confidence: 99%

Dynamics Variation of Soil Labile Organic Carbon Fractions in Different Wetland Types of Dongting Lake under Seasonal Water Level Fluctuation

Xiao

Huang

et al. 2021

Sustainability

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Soil labile organic carbon (LOC) fractions are very sensitive to environmental change and closely related to soil quality. They play an important role in the study of terrestrial carbon cycles. This study aimed to explore the sensitivity of soil LOC fractions to environmental changes and analyze their main influencing factors during three seasonal water level periods for scientific management of Dongting Lake wetlands. Soil under three typical wetland types (Carextristachya wetland (CTW), Phragmites australis wetland (PAW) and Salix babylonica (SBW)) in East Dongting Lake in China were collected during the normal season (May), rainy season (August) and dry season (December). Seasonal dynamics of soil LOC fractions (i.e., dissolved organic carbon (DOC), microbial biomass carbon (MBC) and easily oxidized carbon (EOC)) within these wetlands and their relationship to soil nutrients and carbon-cycle enzyme activity were analyzed. The results showed that the soil DOC contents of the three wetlands first increased and then decreased, with the exception of CTW from the normal season to the dry season, while the seasonal changes of soil MBC and EOC for all wetlands followed an opposite pattern. CTW had the largest DOC concentration (228.29 mg·kg−1) during dry season, while the highest contents of soil DOC, MBC and EOC were found in PAW during the three observed seasons, which ranged from 82.05 to 203.60 mg·kg−1, 262.54 to 325.74 mg·kg−1 and 3.30 to 4.61 g·kg−1, respectively. However, the contents of soil DOC and their proportions to soil organic carbon (SOC) of all wetlands during the normal season were 56.58~82.05 mg·kg−1 and 0.41~0.47%, respectively, which were the lowest among the three seasons. Nevertheless, the contents of both MBC and EOC as well as their ratios to SOC in these wetlands showed similar seasonal dynamics, with the lowest values recorded in the rainy season. From the normal season to the dry season, invertase activity in all wetlands increased, while cellulase activity decreased by 12.5–31.3%. The seasonal variation of catalase activity for all wetlands was less distinctive, and the highest enzyme activity was during the rainy season. Correlation analysis revealed that soil LOC fractions for all wetlands were closely related to SOC, TN, TP and invertase for the three seasons, especially during the rainy season, but were negatively correlated with TK, cellulase and catalase activity. Generally, soil LOC fractions of the three wetlands were affected by the seasonal fluctuations of water levels and presented different distribution characteristics.

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Blue Carbon Dynamics in the Indian Ocean Salt Marshes and Tidal Flats

Chanda

2022

Blue Carbon Dynamics of the Indian Ocean

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Evaluation of the carbon accumulation capability and carbon storage of different types of wetlands in the Nanhui tidal flat of the Yangtze River estuary

Cited by 21 publications

References 44 publications

Distribution of SOCD along different offshore distances in China's fresh-water lake-Chaohu under different habitats

Distribution of SOCD along different offshore distances in China's fresh-water lake-Chaohu under different habitats

Dynamics Variation of Soil Labile Organic Carbon Fractions in Different Wetland Types of Dongting Lake under Seasonal Water Level Fluctuation

Blue Carbon Dynamics in the Indian Ocean Salt Marshes and Tidal Flats

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