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A study published in Environmental Management, November 2024 examined the effect of rainforest conversion into rubber plantations on soil's dissolved organic carbon (DOC) — one of the most mobile organic matter in the terrestrial ecosystem that causes the transformation and migration of carbon.

The study showed that rainforest conversion to rubber plantations led to an increase in soil DOC concentration and a decrease in soil organic carbon (SOC) and nutrients, which in turn increased the loss of DOC as its utilization by micro-organisms was limited.

 

The rubber plantations had 150%–200% higher DOC concentration despite having 38.5% lower SOC concentration than in rainforests, which indicated the lower adsorption potential of soils in rubber plantations than in rainforests, according to the study.

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