Taiwan's tropical and sub-tropical climate and bountiful rainfall have been favorable to the growth of trees. Because of the island's special geographic conditions and natural environment, there are four forest zones. They vary with the elevation and temperature: the frigid, the temperate, the sub-tropical and the tropical.
台灣省地處亞熱帶，氣候溫和，雨量充沛，極適宜林木的成長，不過由於地理與自然環境特殊，森林植物帶亦隨海拔高低及氣溫的變化，而形成寒帶林、溫帶林、亞熱帶林及熱帶林四種林型。