[Response: If I may summarize your point, the question is how the rate of net biomass accumulation changes as an ecosystem matures. (realclimate.org)
PPI also has a technology that has shown to increase biomass accumulation and biomass digestibility. (performanceplants.com)
«Red light irradiation in the absence of blue light was effective at stimulating the biomass accumulation of lettuce plants; however, this lighting alone induced abnormal leaf shape and had a negative effect on polyphenolics and antioxidant levels,» the scientists said. (sciencedaily.com)