Biomass

 In order to measure biomass, destructive techniques are used. Trees are cut down and plants are destroyed, is this unethical?

Biomass is the mass of living organisms in ecosystem and it can refer to species biomass which is the mass of species, or to community biomass is mass of all living things in the community. Biomass can be expressed as the average mass per unit area, or total mass in the community. It can be measured in terms of dried organic mass, so perhaps only %30 of the actual weight might count, the rest being water and because of the living organisms should be dried, ecologists may should kill them to do it. I think if it is just for counting biomass it is ethical because humans cutting trees for making paper, to burn them and be warm, to make furnitures with them so cutting trees for counting biomass is not carnage it is the thing that humans used to do to continue their life.