A Unified Plant Energy–Biomass Framework Based on Absorption Dynamics and Photosynthetic Energy Conversion

Plant growth and productivity emerge from continuous exchanges of energy and matter between plantsand their surrounding environment. Solar radiation, atmospheric carbon dioxide, water, and mineralnutrients together drive photosynthesis, respiration, and biomass formation. Although plant physiologyhas developed detailed biochemical and molecular descriptions of these processes, most existingmodels treat material absorption, energy conversion, and biomass accumulation separately, limitingsystems-level integration.This study proposes a unified plant energy–biomass framework that explicitly links absorption-drivenmass flow, photosynthetic energy conversion, and environmentally constrained biomass growth within aphysically and biologically consistent structure. The framework integrates classical mass-flow relationsto represent material uptake with validated photosynthetic energy balance equations that quantifyradiant energy absorption, conversion efficiency, and respiratory losses. Environmental limitationfactors—including light, temperature, water availability, CO₂ concentration, and nutrient supply—areincorporated as scaling terms that modulate energy efficiency and growth.A key feature of the framework is the explicit distinction between phenomenological energy indicesdescribing biological activity and physically validated energy equations governing photosynthetic powerand biomass formation. This separation prevents dimensional ambiguity while maintaining compatibilitywith established thermodynamic and physiological principles. The resulting formulation provides ascalable, transparent description of plant energy flow across temporal scales ranging from seconds togrowing seasons. The framework complements existing biochemical models by offering a physicallygrounded systems perspective applicable to crop productivity analysis, ecological energy balancestudies, and plant growth optimization under variable environmental conditions. Please check the attachment for details