GURPS: Ecosystems and Evolution

[GilliganIII]

So, I have some questions as to what some equations go where, and how they relate to eachother.

My first is about the population of a species per their biomass. After following the thread back and forth several times, I have come to understand that the equation for the population of a species is either

4*(biomass of species)/(consumption of individual)

or

4*(biomass of species)/[1.25* (mass in lbs)^(-1/4)]

My question then is, am I correct?

My next couple questions have to do with generating the starting biomass for a world and some confusion garnered from Google research.

First I discovered some information concerning the conversion of solar luminosity into biomass via produced wattage;

According to

http://www.astro-ecology.com/Astroec...man_Future.htm

"Assuming a power requirement of 100 Watt/kg biomass"

and

https://www.cfa.harvard.edu/~dfabric...145/units.html

"1 Solar Luminosity = 1 Quadrillion Watts"

so our sun should be generating 140 trillion biomass, but I feel I may have misread something previously in the thread, and so therefore I moved onto this equation;

1,700,000*(Th - Tc)*(area in mile^2)/(height in ft)*(1-sqrt(Tc/Th)

and what I'm wondering is how to convert this for an entire world?
Maybe using the Average Surface Temperature or the blackbody temperature, but more likely the former.
I'm guessing based on your world type and the AST you could determine Th and Tc as extremes for the world, but then I begin to question the height portion.

So I humbly inquire;
Am I overthinking this?
If so is there a simpler way to approach problem that someone would be willing to share?