森林分类是基础，经营是手段，提高森林的总量和综合效益是目的。
Classified forest management is the method and increasing the total amount of forest resources and improving multiple benefits is the goal.
商品林经营是森林分类经营指导下的新的森林经营方式，有其特殊的生产规律。
Commercial forest management is a new way of forest management featuring a special productive regular pattern under the guidance of classified management.
初步试验表明，本系统可提高森林分类精度，并为用遥感图像进行森林分类的专家系统的开发提供了一种思路。
Initial studies have shown that expert system can not only improve forest image interpretation but also present a new idea to develop expert system for remotely sensed image interpretation.
由于我国开展森林分类经营制度研究起步较晚，基础研究环节薄弱，很多分类经营的相关制度还未得到普遍认知。
Because the research of forest classification management system in our country started rather late-the weak in the basic research-many classification management systems have not universally cognitive.
选择南方有代表性的森林游憩区进行森林环境中空气负离子水平研究，结果表明：（1）不同林分类型的森林环境中空气负离子水平差异较大。
The studies on the concentration of aero anion in some south China forest recreation areas showed: (1) The aero anion concentration has differences in different forest types.
选择南方有代表性的森林游憩区进行森林环境中空气负离子水平研究，结果表明：（1）不同林分类型的森林环境中空气负离子水平差异较大。
The studies on the concentration of aero anion in some south China forest recreation areas showed: (1) The aero anion concentration has differences in different forest types.
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