Forests prevent pollution and don't need irrigation, thereby saving water resources, and above all farmers can do better financially by catering to visitors on weekends and holidays than by sticking to growing crops.
森林可以防治污染，又不像一般農作物需要大量灌溉，能節省水資源，最重要的是周末假日大眾可以到鄉間旅遊、住宿，農民聯合起來收門票、旅費，收益比埋頭生產農作物還高。