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广西壮族自治区于1977年在全区林业用地上按6×8公里间距布设了2909个固定样点,并于1978年和1980年进行了两次复查。初、复查时间基本上均在调查年度的9—11月份。本文主要是根据这三次连续清查成果,分析本区1977—1980年间的森林资源及其动态。 一、森林总面积及立木总蓄积现况和动态
In 1977, Guangxi Zhuang Autonomous Region laid 2,909 fixed samples at 6 × 8 km intervals on forestry land in the region and conducted two reviews in 1978 and 1980. At the beginning, the review time was basically in September-November of the survey year. This paper mainly analyzes the forest resources and their dynamics during the period of 1977-1980 in this area based on the results of these three consecutive inventories. First, the total area of forest and the total stock legislation and the dynamic status