Litter inputs exert greater influence over soil respiration and its temperature sensitivity than roots in a coniferous forest in north-south transition zone

Zhuang, Wanlin; Liu, Mengyao; Wu, Yalu; Ma, Jiale; Zhang, Yaojun; Su, Lei; Zhao, Changwei; Fu, Shenglei

doi:10.1016/j.scitotenv.2023.164009

Science of The Total Environment

2023

DOI: 10.1016/j.scitotenv.2023.164009

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Litter inputs exert greater influence over soil respiration and its temperature sensitivity than roots in a coniferous forest in north-south transition zone

Wanlin Zhuang

Mengyao Liu

Yalu Wu

et al.

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Cited by 11 publications

References 74 publications

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Seasonal Evolution of Soil Respiration and Sources of Respirable Carbon in Three Forest Stands on the Loess Plateau of China

Guan,

Zhang,

Niu

et al. 2024

Land Degrad Dev

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The litter and root systems of forest stands can influence soil organic matter content and are subject to the effects of soil temperature and moisture. Through the decomposition activity of soil microorganisms, a portion of the carbon stored in aboveground vegetation is transferred to the underground carbon pool, thereby impacting soil respiration. When we investigated the effects of various components and environmental factors on soil respiration, 13C served as an effective tool for analyzing their contributions. In this study, conducted in a region of the Loess Plateau, three forest stands' soil respiration (Quercus acutissima forest—QAF, Pinus tabuliformis forest—PTF, and mixed forests—MF) was examined. Both soil respiration rate (Rs) and 13C exhibited seasonal fluctuations linked to changes in surface soil temperature and moisture. The soil respiration rate of all forest stands decreased to below 1 μmol m−2 s−1 during winter. The average range of δ13C fell between −22‰ and −17‰. Over the course of four seasons, we monitored soil respiration and identified hydrothermal factors. The correlation between hydrothermal factors and CO2 releases from soil respiration varied significantly across seasons among different forest structures (p < 0.001). Additionally, the contribution of litter to soil respiration was the main source and it was higher in autumn and winter, with a maximum of over 75%. This study holds significant importance for understanding the processes underlying the carbon sources of soil respiration.

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Seasonal Evolution of Soil Respiration and Sources of Respirable Carbon in Three Forest Stands on the Loess Plateau of China

Guan,

Zhang,

Niu

et al. 2024

Land Degrad Dev

View full text Add to dashboard Cite

show abstract

Global Systematic Review with Meta-analysis Shows Responses of Forest Greenhouse Gas Emissions under Single Nitrogen, Single Phosphorus, or Interactive Nitrogen and Phosphorus Addition

Wang,

Guo,

Cui

et al. 2024

J Soil Sci Plant Nutr

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Changes in plant litter and root carbon inputs alter soil respiration in three different forests of a climate transitional region

Feng,

Wang,

Gao

et al. 2024

Agricultural and Forest Meteorology

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Litter inputs exert greater influence over soil respiration and its temperature sensitivity than roots in a coniferous forest in north-south transition zone

Cited by 11 publications

References 74 publications

Seasonal Evolution of Soil Respiration and Sources of Respirable Carbon in Three Forest Stands on the Loess Plateau of China

Seasonal Evolution of Soil Respiration and Sources of Respirable Carbon in Three Forest Stands on the Loess Plateau of China

Global Systematic Review with Meta-analysis Shows Responses of Forest Greenhouse Gas Emissions under Single Nitrogen, Single Phosphorus, or Interactive Nitrogen and Phosphorus Addition

Changes in plant litter and root carbon inputs alter soil respiration in three different forests of a climate transitional region

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