Soil Carbon Dynamics in Bamboo Forest Ecosystems

Bamboo forest ecosystems are increasingly recognised for their rapid biomass accumulation and potential to influence global carbon cycles. The unique architecture of bamboo, characterised by extensive rhizome networks and high litter production, drives both the inputs and turnover of soil organic carbon (SOC). Aboveground litter, rich in labile carbon compounds, degrades swiftly under warm, moist subtropical conditions, promoting active microbial communities but also accelerating mineralisation rates. Concurrently, the perennial rhizome system contributes recalcitrant carbon stabilised deeper in the soil profile, where reduced microbial activity and physical protection slow decomposition. Management practices—ranging from selective harvesting and mulching to clear-cut rotations—further modify SOC sequestration by altering litter quality, soil pH, moisture and aggregate stability. Bamboo expansion into adjacent forests often shifts soil carbon pools; invasions can enhance humification processes and recalcitrant fractions yet reduce total SOC stocks over time. Understanding the balance between rapid carbon cycling in surface soils and longer-term stabilisation at depth is crucial for harnessing bamboo stands as sustainable carbon sinks and for informing land-use strategies aimed at climate mitigation.

Research from Nature Portfolio

Recent studies have examined how bamboo invasion alters soil organic matter composition and carbon storage dynamics. Investigations into bamboo encroachment in cedar plantations revealed that the high labile carbon content of bamboo litter accelerates humification processes, leading to an increased proportion of humic substances but an overall reduction in soil organic carbon content compared with native cedar stands. In broad-leaved subtropical forests, the steady advance of moso bamboo caused a marked decline in surface soil organic carbon and total nitrogen pools over a nine-year period, accompanied by an increase in microbial biomass carbon and water-soluble organic carbon, indicating enhanced turnover of organic matter. These foundational findings underscore a trade-off between accelerated carbon processing in invaded zones and net carbon losses from soil pools, highlighting the need to consider invasion dynamics in regional carbon budgets.

Soil Carbon Dynamics in Bamboo Forest Ecosystems publication trend

The graph below shows the total number of articles in soil carbon dynamics in bamboo forest ecosystems across all publications each year (not limited to Nature Index journals).

Technical terms

Soil organic carbon (SOC): The carbon component of organic compounds within soil, central to soil fertility and carbon sequestration.

Labile carbon: Easily decomposable organic matter that serves as a rapid energy source for soil microbes.

Recalcitrant carbon: Resistant organic matter that decomposes slowly and contributes to long-term soil carbon storage.

Humification: The process by which organic residues transform into stable humic substances through microbial activity and chemical reactions.

Mineralisation: The microbial conversion of organic carbon into inorganic forms, primarily CO₂, during decomposition.

Rhizome: A horizontal, subsurface stem that facilitates nutrient storage and vegetative propagation in bamboo.

Carbon sequestration: The process by which atmospheric carbon dioxide is absorbed and stored as carbon in vegetation, soils or sediments.

References

1. Invasion of moso bamboo into a Japanese cedar plantation affects the chemical composition and humification of soil organic matter. Scientific Reports (2016).
2. Effects of moso bamboo encroachment into native, broad-leaved forests on soil carbon and nitrogen pools. Scientific Reports (2016).
3. Responses of Soil Organic Carbon Sequestration Potential and Bacterial Community Structure in Moso Bamboo Plantations to Different Management Strategies in Subtropical China. Forests (2018).
4. Analysis of Soil Degradation Causes in Phyllostachys edulis Forests with Different Mulching Years. Forests (2018).
5. Changes in Soil Biochemical Properties in a Cedar Plantation Invaded by Moso Bamboo. Forests (2017).