浙江林学会,于1963年4月上旬在杭州召开了首届年会(1962年年会),参加这次年会的有林业科学研究部门的研究人员,教学部门的教授、教师,生产部门的工程师、技术人员等30余人,省科协也派人出席了会议。会上宣读了论文,并着重对毛竹和油桐的增产问题进行了探讨。省林科所赵仰夫同志认为毛竹存在着大、小年的问题,但在集约经营、密度较大(每亩400栋以上)的毛竹产区,通过强度采伐调节地上部与地下部的关系,可以改变大小年,使连年增产。根据试验可增产30%左右。采伐强度必须掌握在30—35%,并应看立竹密度增减,不可一律。通过讨论,代表们认为,根据试验结果,通过强度采伐在集约经营、密度较大的竹林,虽取得了增产效果,但仍须做长期观察,尤其对于本省经营水平一般,密度中等(150—200株)的竹林,如何改变大小年增加产量,还须进一步研究。同时还应深入研究大小年的成因, Zhejiang Forestry Society, held its first annual meeting (annual meeting in 1962) in Hangzhou in early April 1963. Researchers at the scientific research department, professors and teachers in the teaching department and engineers in the production department participated in the conference. , More than 30 technicians, provincial Association for Science and Technology also sent people to attend the meeting. Read the papers at the meeting, and focused on the yield increase of bamboo and tung tree were discussed. Comrade Zhao Yanfu of the Linke Forestry Bureau of the province believes that there are problems of big and small years in the bamboo industry. However, in the intensively-operated and high-density bamboo producing areas with a density of more than 400 per acre, the relationship between the above-ground part and the basement part can be adjusted through intensity harvesting. Change the size of the year, so that annual production. According to the test can increase about 30%. Harvesting intensity must be controlled at 30-35%, and bamboo density should be increased or decreased, not uniform. Based on the results of the experiment, the delegates believed that although intensive logging in intensively managed and densely-groomed bamboo forests has achieved long-term results, it is still necessary to make long-term observations. In particular, the management of the province is generally moderate in density (150-200 Strains) of bamboo forest, how to change the size of the year to increase production, still need further study. At the same time, we should further study the causes of the size year,