We can infer from historical records and Taiwan's warm and humid climate that the plains originally had a great variety and quantity of large trees. Yet it was in this area that the chances of coming into competition with human beings were highest. That meant the rate of felling was also higher.
不論由歷史記載，或由台灣溫暖潮濕的氣候推斷，平地原有的大樹種類與數量都很多；但身處平地，與人爭地機會既多，被砍除的機率也就更大。