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应法国国家林业机构(ONF)的邀请,中国林科院林研所防护林室主任周士威副研究员于1989年6月13日至7月25日访问了法国,考察内容包括世界著名的西部沿海防护林;南部比利牛斯山区的林业和水土保持工作;马赛地区地中海型气候的半干旱区造林技术;沿河(加龙河,阿杜尔河)滩地人工杨树林的栽培技术;东北部南锡省针叶林及特种阔叶用材林经营
At the invitation of the French National Forestry Organization (ONF), ZHOU Shiwei, an associate director of the Research Institute of Forest Research Institute of the Chinese Academy of Forestry, visited France from June 13 to July 25, 1989. The survey included the world famous western coastal shelter forest; Forestry and soil and water conservation work in the southern Pyrenees; afforestation techniques in the semi-arid region of the Mediterranean climate in the Marseille region; cultivation techniques of poplar forests along the banks of the Garonne and Adour rivers; Ye Lin and special broad-leaved timber business