提出了基于虚拟森林环境的林分经营模拟方法。
An approach to simulate forest stand management based on Virtual forest Environment is put forward.
基于以上分析，用动态规划方法建立了可变间伐间隔期的林分经营密度模型。
This study on management density model of the mobile thinning interval overcomes the shortcoming of stationary interval which the former similar researches have, and it is convenient to practice.
同时，针对于加强项目林分的后期经营管理，对提高林分生长质量提出了具体的措施和建议。
Moreover, aiming at strengthening the future management of stand of project forest, concrete proposals and measures for improving quality of stand growth are also presented.
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.
因此，在制定正确的森林经营决策之前，首先必须建立林分生长与收获模型，以掌握林分结构、生长动态、货币收获变化规律，并预测林分对即将实施措施的反应。
Thus, the growth and obtain models must be established before making the proper manage decision, the structure and grow dynamic and obtain change rule of the stand will be grasped by the models.
本文就竹林分类经营的必要性、可行性、经营类型划分等作了描述。
The paper describes necessity, feasibility of classifi management of bamboo stands, along with identifying management modes.
本研究为天然次生林采取合理的经营措施，指导各林分类型的经营实践活动提供理论依据。
In this study, it takes reasonable measures to operate the natural secondary forest guide the operation of the various forest types and provide a theoretical basis for practical activities.
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.
然而林分是一个结构复杂、影响因子多且相互关联的生态系统，其生长周期长，且对所实施的管理决策的容错性差，这些特点给合理的经营决策增大了难度。
But the stand is a ecosystem with complicated structure and many related influence factors. Add to the long growth period long, it is difficult to carry out the proper management policy.
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.
通过对天然红松林下的更新进行调查，阐明了天然红松林下的更新好坏和林分类型及土地条件有着密切的关系，对今后天然红松林经营起到借鉴作用。
According to the renovation investigation under natural Korean pine forest, this paper states that there are con - sanguineous relationship among renovation, forest type and site conditions.
本文对赤峰市巴林左旗山杏林资源、林分现状、产地条件等进行了分类，对各类型林分、林地生产力进行了分析和评价，提出了相应的经营对策。
Stand of all type and productive capacity on area hace been analysed and evaluated, and the relevant management countermeasures have been put forward.
森林的空间结构反映了森林群落内物种的空间关系，研究林分空间结构的目的是为经营提供科学依据。
The forest spatial structure had reflected in the forestry species spatial relations. The goal of studying the forest spatial structure is to provide basis for forest management.
本文对集约经营与粗放经营杨树人工林分的叶面积垂直分布及其季节动态变化进行了对比研究。
The vertical distribution and seasonal change of leaf are a were studied in intensive and extensive culture poplar plantations.
本文对集约经营与粗放经营杨树人工林分的叶面积垂直分布及其季节动态变化进行了对比研究。
The vertical distribution and seasonal change of leaf are a were studied in intensive and extensive culture poplar plantations.
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