Organic carbon storage and its influencing factors under climate warming of sediments in steppe wetland, China

He, Jie; Xie, Jingjie; Su, Derong; Zheng, Zhong; Diao, Zhaoyan; Lyu, Shihai

doi:10.1007/s11356-020-08434-8

Cited by 7 publications

(3 citation statements)

References 45 publications

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“…We found that SOM, MBC and MBN significantly decreased with increasing temperature and were negatively related to CO 2 emissions (Figure 4A). Previous studies also found that increasing temperature resulted in decreases in SOC (Kirschbaum, 2000;He et al, 2020), MBC and MBN (Rinnan et al, 2009;Fu et al, 2012).…”

Section: Effects Of Soil Temperature On Ghg Emissionsmentioning

confidence: 73%

Response of GHG emissions to interactions of temperature and drying in the karst wetland of the Yunnan-Guizhou Plateau

Zhang

Zhao

et al. 2022

Front. Environ. Sci.

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Hydrothermal fluctuation is the major driving factor affecting greenhouse gas (GHG) emissions in wetlands, but how wetland drying regulates the temperature dependence of GHG emissions remains uncertain. An experimental incubation was carried out to study the interaction effects of temperature (5, 10, 15, 20°C) and moisture (40%, 60%, 100% WHC) on soil GHG emissions in a karst wetland. The results showed that: 1) the cumulative CO2 and N2O emissions and global warming potential (GWP) increased with increasing temperature but decreased with soil drying. 2) There was a decreasing contribution of CO2 and an increasing contribution of N2O to GWP with increasing temperature and moisture. 3) Soil CO2 and N2O emissions and GWP were positively related to urease activity and negatively related to pH, soil organic matter and catalase. Soil CH4 emissions were positively related to soil microbial biomass C and N. The hydrothermal changes, soil properties and their interaction explained 26.86%, 9.46% and 49.61% of the variation in GWP. Our results indicate that hydrothermal fluctuation has a significant effect on total GHG emissions by regulating soil properties.

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Section: Effects Of Soil Temperature On Ghg Emissionsmentioning

confidence: 73%

Response of GHG emissions to interactions of temperature and drying in the karst wetland of the Yunnan-Guizhou Plateau

Zhang

Zhao

et al. 2022

Front. Environ. Sci.

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“…This study revealed that soil properties such as pH, Fe o, Al o , and soil total nitrogen significantly affected the SOC stock. Similarly, in alpine shrublands on the Tibetan Plateau, steppe wetlands and orchard grass mulching across China, the soil characteristics were also proposed to control the SOC stock dynamics (He et al, 2020; Nie et al, 2021; Xiang et al, 2022). In addition, soil properties, such as pH, Fe o and Al o influenced the effects of MAP, AGB and BGB on SOC stock in alpine wetlands and meadows (Figure 7).…”

Section: Discussionmentioning

confidence: 99%

Storage and controlling factors of soil organic carbon in alpine wetlands and meadow across the Tibetan Plateau

Nie

Wang

Zhou

et al. 2023

European J Soil Science

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Alpine wetlands and meadows across the Three Rivers Source Region (TRSR) store high soil organic carbon (SOC). However, information on factors affecting SOC storage is scanty. Herein, we investigated SOC storage and explored factors affecting SOC storage, including climate, soil properties and above‐ and belowground biomass, using 50 soil profiles across the TRSR on the Tibetan Plateau. The SOC storage was 491.9 ± 158.5 Tg C and 545.2 ± 160.8 Tg C in the TRSR alpine wetlands and meadow, respectively. The SOC stock was positively correlated with the mean annual precipitation. However, no significant correlation between SOC stock and mean annual temperature was observed, as opposed to the global trend. In addition, SOC stock was positively correlated with both the aboveground biomass (AGB) and belowground biomass (BGB). Soil pH indirectly affected SOC stock, while SOC stock positively correlated with Al and Fe oxyhydroxides. Compared with vegetation biomass and climatic factors, soil properties, including soil pH and Al and Fe oxyhydroxides (Alo and Feo), affected not only SOC stock variation but also affected the impact of vegetation and climatic factors on SOC stock. Climate factors, AGB, BGB, soil pH, Alo and Feo jointly accounted for 59% of SOC stock variation in alpine wetlands and 64% of SOC stock variation in alpine meadow. This study suggests that soil properties are the dominant factors affecting SOC variation in alpine wetlands and meadow on the Tibetan Plateau.

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“…3 To tackle environmental pollution, NP was added to China's catalogue of toxic chemicals under strict import and export restrictions in 2011. [4][5][6] In addition, the United States, Canada, South Korea, and China have issued relevant laws and regulations to restrict the use of NP.…”

Section: Introductionmentioning

confidence: 99%

The effect of the ageing process on the desorption of nonylphenol in black carbon-sediment systems: a kineto-mechanistic and modeling investigation

Sun,

Liu,

Liu

et al. 2024

Environ. Sci.: Processes Impacts

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Organic carbon storage and its influencing factors under climate warming of sediments in steppe wetland, China

Cited by 7 publications

References 45 publications

Response of GHG emissions to interactions of temperature and drying in the karst wetland of the Yunnan-Guizhou Plateau

Response of GHG emissions to interactions of temperature and drying in the karst wetland of the Yunnan-Guizhou Plateau

Storage and controlling factors of soil organic carbon in alpine wetlands and meadow across the Tibetan Plateau

The effect of the ageing process on the desorption of nonylphenol in black carbon-sediment systems: a kineto-mechanistic and modeling investigation

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