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苗木出圃前进行数量和质量调查,能准确提供一定数量优质壮苗。以前应用的标准地调查法费时费工,而数据不准确。1982年9月林业部编印的《苗木调查方法》手册,介绍了新的调查方法。1983年在我省11个地市30个苗圃进行的苗木标准化调查中,统一使用了此种方法。在调查中发现,应用《手册》中的方法,苗木的产量数据容易符合要求,而质量调查常不能达到精度而返工,或选取苗数过多,费时费力。
Seedlings out of nursery before the number and quality of investigation, can accurately provide a certain number of high quality seedlings. Previously applied standard survey method time-consuming and laborious, and the data is not accurate. The Manual on Seedling Survey Methodology, edited by the Ministry of Forestry in September 1982, introduced a new survey methodology. In 1983 in our province 11 cities 30 nurseries nursery stock standardization survey, unified use of this method. The survey found that the application of “manual” in the method of production of seedlings easily meet the requirements of the data, and quality surveys often can not achieve the accuracy and rework, or select the number of seedlings, time-consuming and laborious.