Between deforestation and replanting, the forests at altitudes above 1,000 meters have changed little in size over the past 30 years; what is growing scarcer and scarcer are the trees down the mountain.
國有林地有伐、有植，所以卅年來台灣一千公尺以上高山的森林，數量改變不大；減少的是中、下游的森林。