楊英風一九六六年自羅馬返國，一九六七年應花蓮榮民大理石廠邀請擔任藝術顧問。於羅馬遊學期間，觀察石雕藝術發展，奠定他對大理石的獨特表現。 一九七○年楊英風運用大理石廢料，以拼貼創作完成花蓮機場三件「太空行」系列的景觀雕塑作品，象徵飛航事業準備起飛萬里前程。獨鍾大理石廢料作為創作元素，認為「這些廢料比整齊完全的材料還要好用，只要充分利用每塊石片的長處，互相組合、彌補，效果絕對完美。…」。榮民大理石廠工作時，激起他發現大理石廢料新用途，以藝術的眼光，造出鮮活而自然，符合經濟原則與合於美的要求，展現在地石材特點的表現，開啟花蓮景觀雕塑的濫觴。 一九七○年日本大阪萬國博覽會「鳳凰來儀」鋼鐵景觀雕塑；一九七四年美國華盛頓州史波肯博覽會「大地回春」。他的作品藉由融合中國文化涵養傳達東方哲學思想，積極將雕塑藝術融入環境，並提出嶄新「景觀雕塑」(Lifescape Sculpture)觀念，體認「景」是「外在的型」，「觀」是人類「內在的精神狀態」，深覺人類生活必須與自然環境相應相融。 楊英風是一位具東西方文化內涵、充滿人文、宗教關懷與尊崇自然的藝術家，成為台灣景觀雕塑的前輩，他認為公共藝術是文化的顯學。本研究目的主要從其花蓮的機場景觀雕塑，探討其創作理念與作品，對公共藝術的象徵意義。

In 1966, Yu Yu Yang returned from Rome. Then in 1967, he was invited by Hualien Veteran's Marble Plant to serve as an artistic advisor. During his stay in Rome, he studied the stone carving art so as to establish his own unique artistic style in marble material. In 1970, by mosaicing the marble waste, he created a series of artistic works, “Space Trip”, in Hualien airport to symbolize that the airline business would soar up and be prosperous. In these works, he favorited the material of marble waste simply because he thought that these were much better in mosaic as each of all these single pieces’ advantages were fully taken into consideration to combine and to compensate each other pieces to reach an ideal perfect artistic work than that of those big pieces of marble. He applied these materials from the perspective of art to create active, lively and natural artistic pieces which could also reveal the characteristics of local stone material and launch the Lifescape Sculpture movement in Hualien. These sculptures were special in the way that they incorporated and blended into their surrounding environment. His viewpoint idea of that these works were made up of the sculptures themselves, but also what the viewer brought to the works spiritually. He strove to achieve a seamless melding between the work and its surrounding environment. He was an artist who respects the mother nature and who believed that public art is the revelation of its own culture and had its significance resulted from its culture. The goal of this study is to explore his ideas in his works from a series of works “Space Trip” in Hualien airport, trying to see if his works can fully express what he truly believed and advocated.