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目前,我省正在开展县级林业区划工作,而森林资源调查是基础工作。此次调查按森林资源调查分类,属“规划设计调查”<简称二类调查>中的C级。二类调查的基本要求是“按小班提供蓄积量,同时用抽样方法控制调查地区总体的蓄积量精度”。具体的说,我省“林业重点县、……总蓄积量的精度,用‘分层抽样控制总体法控制’”。当调查的小班累
At present, our province is carrying out county-level forestry zoning work, and forest resources survey is the basic work. The survey by forest resources survey classification, is a “planning and design survey” (referred to as two types of investigation) in the C-level. The basic requirements for the second type of survey are “to provide the accumulation volume in small classes and to control the overall volume accumulation accuracy in the surveyed areas by the sampling method at the same time.” Specifically, in our province, “the key counties in forestry, ... the precision of the total stock volume, and the control of the overall law by stratified sampling”. When investigating the small class tired