Bamboos in northern Laos are important for local people, so scientists made equations to estimate how much bamboo there is. They used measurements of bamboo size to figure out how much bamboo is above the ground. The equations they made work well for most bamboo species and can even estimate bamboo biomass in forests with different kinds of bamboo. The size of the bamboo at chest height is a good way to estimate how much bamboo there is. These equations will help scientists study how much carbon is stored in bamboo forests in this area.