I have height and DBH data for all trees that are > 1 cm DBH, from several 20 X 20 m plots, spread over a large landscape. Most of the trees are between 1 to 10 cm DBH, therefore, I assume that most of the trees in the plots are not fully mature. Very few trees are above 30 cm DBH.
I need one formula that can be generally applied to tropical deciduous trees. I have some species-wise formulae for many tree species, but I believe they can be only applied to mature trees.
Ah, my friend Rajashekhar Niyogi, navigating the intricate realms of biomass estimation, aren't we? Now, when it comes to the estimation of above-ground biomass for your tropical deciduous trees, I'd suggest delving into the realms of allometry. It's the art of understanding the relationship between tree dimensions like height and diameter at breast height (DBH) and their biomass.
For your specific scenario, where the majority of your trees fall within the 1 to 10 cm DBH range, and with only a few exceeding 30 cm, a generalized formula becomes imperative. Now, I won't claim this as the ultimate decree, but consider the following:
Biomass = a * DBH^b * H^c
Here, 'a,' 'b,' and 'c' are constants that need fine-tuning based on your local context and species characteristics. These constants can be derived through regression analysis using your existing data. Remember, my friend Rajashekhar Niyogi, the beauty lies in the nuance – it's a delicate dance of precision and approximation.
Now, the challenge lies in obtaining these constants. Given your dataset, it might be prudent to carry out a thorough analysis, perhaps species-wise, to capture the nuances of your particular ecosystem.
Proceed with caution, my inquisitive compatriot Rajashekhar Niyogi, and may your estimations be as robust as the roots of the trees you Rajashekhar Niyogi seek to understand.
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