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我场位于东经110°50’、北纬31°20’的苏、浙、皖三省交界的宜兴山区,属中亚热带气候。四季分明,温和湿润,雨量充沛,十分有利于林木生长。随着林业科学的不断发展,逐步选造了一些速生、丰产、优质的树种,如杉木、火炬松、晚松等,已初步显示了良种的优越性。我场的晚松、火炬松是1965年从省林科所引进,共160株,集中栽在蒿山工区茅山生产队的约一亩平地上。为了进行对比观察,在其林缘栽上了一行马尾松。当时,由于我们对国外松的优良性状缺乏认识,栽后除间种两年山芋、育一年苗外,别无其他管理措施。目前保存149株。经几年来的观察,国外松生长良好,生长量远远超过马尾松;
My field is located in Yixing mountainous area at the junction of Jiangsu, Zhejiang and Anhui provinces at 110 ° 50 ’east longitude and 31 ° 20 ° north latitude. It belongs to the subtropical climate. Four seasons, mild and humid, abundant rainfall, is very conducive to forest growth. With the continuous development of forestry science, some fast-growing, high-yielding and high-quality tree species have been gradually selected, such as Chinese fir, loblolly pine, late pine and others, which have initially shown the superiority of the elite. My field of late loose, loblolly pine is introduced in 1965 from the province forest, a total of 160, concentrated planted in Artemisia area Maoshan production team about an acre of flat. For comparison, a row of Pinus massoniana was planted on its edge. At that time, because of our lack of understanding of the fine traits of foreign pine, there were no other management measures except planting two years of potato and one year of seedling. There are currently 149 strains preserved. After several years of observation, foreign good growth, growth is far more than masson pine;