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马尾松(Pinus massoniana)是宁镇低山丘陵地区成片林的主要树种之一.全区有成片马尾松用材林63.5万亩,占成片用材林总面积61%,蓄积46.18万立方米,占该区成片用材林蓄积的52.8%,对解决地方用材发挥了重要作用.因此,马尾松生长的好坏,对该区成片林的蓄积量增长有着举足轻重的地位.为了分析掌握该区马尾松生长情况和立地条件的关系,更好地发挥马尾松的生产潜力,达到速生丰产,本文通过对调查资科的分析谈点浅见.一、调查材料和方法材料选自1981年、1982年在宜兴、句容、溧水、溧阳、金坛、丹徒、高淳、江宁、江浦、六合、中山陵等地的17个林场、园林管理处、17个公社的样地调查资科276
Pinus massoniana is one of the main tree species in the hilly region of Ningxia, with a total area of 635,000 mu of Pinus massoniana forest, accounting for 61% of the total forest area and 461,800 cubic meters In this area, 52.8% of the accumulated volume of timber stands played an important role in the solution of local timber, therefore, the growth of masson pine played a decisive role in the growth of the forest in this area. Growth and site conditions, to better play the productive potential of masson pine to achieve fast-growing and high-yield, this article by investigating the analysis of resources humble opinion.First, the survey materials and methods selected from 1981, 1982 in Yixing , 17 forest farms in Jurong, Lishui, Liyang, Jintan, Dantu, Gaochun, Jiangning, Jiangpu, Liuhe and Sun Yat-sen, etc. Garden management office, sample survey of 17 communes