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2D Biochar Soil Carbon

Interactive 2D two-pool soil-carbon model showing how a biochar dose, soil moisture regime, microbial activity and fresh organic input change stable carbon storage, water holding capacity and nutrient leaching risk over simulated years.

Chemistry & Materials2DModerate60 FPS📱 Mobile-adapted⇄ 3D version

This 2D canvas simulator runs a two-pool soil-carbon model forward in simulated years: a fast-decaying labile carbon pool from fresh organic matter, and a slow-decaying biochar carbon pool set by the applied dose. Sliders for biochar dose, moisture regime, microbial activity and fresh organic input reshape both decomposition rates and water holding capacity in real time, while a live chart tracks the labile, biochar and total carbon stocks and a soil cross-section shows biochar particles, decomposing organic flecks and the current water table.

⚙ Under the hood

Two first-order kinetics pools (labile carbon k≈0.35/yr, biochar carbon k≈0.004/yr) driven by a moisture-dependent decomposition factor and a microbial-activity multiplier; water holding capacity and nutrient-leaching risk both respond to biochar dose through saturating curves.

biocharsoil-carboncarbon-sequestrationwater-holding-capacitysoil-chemistryagronomy2d

2D · HTML5 Canvas 2D · 60 FPS target · runs fully client-side, no install

How does biochar increase soil carbon storage?

Biochar is pyrogenic carbon that decomposes on a centuries timescale (roughly 0.004 per year in this model) compared to fresh organic matter, which decomposes in a few years. Adding a dose of biochar builds a slow-release stable-carbon reservoir alongside the fast labile pool.

Why does biochar raise water holding capacity?

Biochar's porous structure increases the soil's ability to retain water, following a saturating curve with dose — early tonnes per hectare help the most, and the effect levels off at high application rates.

Does biochar reduce nutrient leaching?

Yes, in this model biochar's cation-exchange capacity adsorbs nutrients that would otherwise leach out when soil moisture exceeds water holding capacity, damping the leaching-risk readout as dose increases.