With camera in hand, in 1972-73 Hsu began his survey of wild orchids in Taiwan. In 1974 he published an article entitled "The Disappearing Horizon," that counts as Taiwan's first essay on the protection of the environment and ecology.
有了攝影機在手，1972、73 年間徐仁修開始調查台灣野生蘭，1974 年在中央日報發表〈消失的地平線〉，堪稱台灣第一篇保護環境生態的文章。