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What ecosystem has highest biomass? 

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The necessary and sufficient condition for ecosystem stability is shown to be that energy content per unit biomass increase in a hierarchical fashion as one climbs the trophic ladder.
Biomass size distributions provide a holistic ecosystem description that facilitates ecosystem comparisons in time and space.
Biomass energy was clearly distinguished into three axes, suggesting that biomass is strongly related to the location and ecosystem, while the distribution of the types of ecosystem services in the studied areas was not separated clearly.
However, they are more efficient in transferring the biomass to the highest trophic levels.
Biomass and productivity were not strongly related, showing that they provide unique information on ecosystem functioning in this system.
The results presented here show that in spite of a strong degradation of the trees and severe climatic conditions, the aerial biomass is included in the brackets defined by other authors for this kind of ecosystem.
Comparison with data on dry matter indicated that the aboveground biomass accounted for about 45–70% of the net carbon uptake, suggesting the importance of the below ground biomass in estimating net primary productivity in this ecosystem.
The results suggest that there are sufficient data available to construct an ecosystem model, but the quality of the data varies and serious potential sources of error are present in biomass and discard estimates.