但另一方面，我国用材林面积和单位面积上森林蓄积量都在锐减，这就在客观上增加了伐区区划和主伐调查设计的劳动量和劳动强度。
On the other hand, the area of usable forest and the volume of standing timber in one unit area are descending sharply in our country, which aggravates the labor intensify impersonally.
在林业生产中，地图更是占有重要的地位，各级林业区划、规划、森林资源清查、森林经理调查、伐区作业设计等都离不开地图。
In forestry, map also occupies an important position, the all levels forest division, forest planning, the forest resources inventory, the forest management inventory, felling series design etc.
森林土壤取样的研究结果表明：基于设计的取样策略主要建立于传统的调查取样的基础上，需要多少样本，研究区应设定多大范围是设计考虑的主要内容。
Result of forest soil sampling indicates that: design-based approach is mainly based on the traditional investigation, the number of samples and study area are mostly considered by this approach.
本文简要叙述了2004年黑龙江省林业勘察设计院进行的森林资源二类调查的基本方法。
This paper briefly states the basic methods of forest resource investigation in 2004, which was performed by forestry reconnaissance and design institute of Heilongjiang province.
其中，抽样方案设计是影响森林资源调查数据质量的关键因素。
Among them, sampling scheme design is the key factor of effecting CFI data quality.
针对普通测树角规在森林调查中存在的弊端 ，研究发明了一种能自动改正坡度的新型角规 ，详细介绍了其原理、结构设计及使用方法。
Focusing on overcome the shortcomings of routine angle gauge using in forest measuration, a new-type angle gauge with the function of correct slope automatically was developed.
针对普通测树角规在森林调查中存在的弊端 ，研究发明了一种能自动改正坡度的新型角规 ，详细介绍了其原理、结构设计及使用方法。
Focusing on overcome the shortcomings of routine angle gauge using in forest measuration, a new-type angle gauge with the function of correct slope automatically was developed.
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