wood density of population
wood density of population
种群木材密度
以上为机器翻译结果，长、整句建议使用 人工翻译 。
-
Tourism is creating other problems for the local environment, too, including increased population density, over-dependence on wood as a fuel and construction source and the overgrazing and cutting of mountain slopes to feed livestock.
BBC: Everest's growing problem