Grazing decreased soil organic carbon by decreasing aboveground biomass in a desert steppe in Inner Mongolia

Wang, Yuehua; Wang, Zhongwu; Li, Haigang; Shen, Tingting; Zhang, Xin; Li, Jiangwen; Han, Guodong

doi:10.1016/j.jenvman.2023.119112

Cited by 2 publications

(1 citation statement)

References 29 publications

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“…The Longzhong Loess Plateau region has a limited growth rate of vegetation due to low precipitation, which in turn causes a lower level of aboveground biomass compared to other study areas. (2) Differences in the extent of aboveground plant foraging by domestic animals in different regions alters aboveground biomass content [37], i.e., high and low levels of livestock carrying rate in different study areas may have led to differences in aboveground biomass. In the Longzhong Loess Plateau region, overgrazing by domestic animals leads to increased vegetation depletion, which in turn causes biomass reduction [38].…”

Section: Biomass Carbon Density Of Vegetation In Temperate Steppe And...mentioning

confidence: 99%

Distribution Characteristics of Carbon Density in Plant–Soil System of Temperate Steppe and Temperate Desert in the Longzhong Loess Plateau

Li,

He,

Liu

et al. 2024

Agriculture

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Grassland, as a key component of the carbon cycle in terrestrial ecosystems, is vital in confronting global climate change. Characterising the carbon density of grassland ecosystems in the Longzhong Loess Plateau is important for accurately assessing the contribution of grasslands to global climate change and achieving the goal of “peak carbon” and “carbon neutral”. In this study, the Longzhong Loess Plateau was used as the research object to explore changes in the plant–soil system carbon density in two grassland types by analysing the aboveground vegetation biomass carbon density, belowground vegetation biomass carbon density, 0–100 cm soil carbon density, and ecosystem carbon density of temperate steppe and temperate desert. The results showed that the vegetation biomass (standing and living, litter, and belowground biomass), soil, and ecosystem carbon densities of the temperate steppe were significantly higher than those of the temperate desert (p < 0.05). Their carbon densities were 700.51, 7612.95, and 8313.45 g·m−2, respectively. The vertical distribution of belowground biomass and soil carbon density in the temperate steppe was significantly higher than that in the temperate desert. The overall trend of belowground biomass carbon density in the temperate steppe and temperate desert showed a gradual decrease, whereas soil carbon density showed a steady increase. More than 91% and 96% of the carbon was stored in soil in the temperate steppe and temperate desert, respectively, and the belowground biomass carbon stock accounted for more than 84% of the total biomass carbon pools in both temperate steppe and temperate desert. Temperate steppe has a significant effect in improving the carbon stock of grassland ecosystems, so ecological protection and restoration of grassland should be strengthened in the future to enhance the capacity of grassland to sequester carbon and increase sinks.

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Section: Biomass Carbon Density Of Vegetation In Temperate Steppe And...mentioning

confidence: 99%

Distribution Characteristics of Carbon Density in Plant–Soil System of Temperate Steppe and Temperate Desert in the Longzhong Loess Plateau

Li,

He,

Liu

et al. 2024

Agriculture

View full text Add to dashboard Cite

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Light grazing reduces the abundance of carbon cycling functional genes by decreasing oligotrophs microbes in desert steppe

Zhao,

Guo,

Suo

et al. 2024

Applied Soil Ecology

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Grazing decreased soil organic carbon by decreasing aboveground biomass in a desert steppe in Inner Mongolia

Cited by 2 publications

References 29 publications

Distribution Characteristics of Carbon Density in Plant–Soil System of Temperate Steppe and Temperate Desert in the Longzhong Loess Plateau

Distribution Characteristics of Carbon Density in Plant–Soil System of Temperate Steppe and Temperate Desert in the Longzhong Loess Plateau

Light grazing reduces the abundance of carbon cycling functional genes by decreasing oligotrophs microbes in desert steppe

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