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- If the optimum density of forest road network is to be obtained in a piece of cutting area,the ways of yarding need optimum choosing. 林道网合理密度是相对于集材方式而言的，在一片伐区上要得到最佳的林道网密度，需要进行集材方式的优选。
- Disposition Configuration and Optimal Density of Forest Road Network 山地林道网配置线型与合理密度
- Research on the Optimum Density of Forest Road Network on Ecological Benefits 考虑森林生态效益因子的林道网合理密度研究
- density of forest road network 路网密度
- A Study on Optimum Density and Disposition of Forest Road Network 山地林道网合理密度与配置的研究
- A Review and Prospect for the Research of Forest Road Network 林道网理论研究的历史回顾与展望
- Planning and design of forest road network and its technipue standards determination 林区路网规划设计与路网技术标准的确定方法
- This paper discussed the damage and cause of forest road frothing in Fujian and the prevention measures to this issue were put forward then. 摘要论述了福建林区公路翻浆现象的危害性和形成原因，提出防治林区公路翻浆问题的主要措施。
- Owing to plastic growth,the relations among average DBH,average dry weight of individual plants and density of population varied among spruce populations in various types of forest. 由于可塑性生长的影响，不同林型中沙地云杉种群的平均胸径、单株平均干重与种群密度关系之间的变化幅度也不相同，但都表现出幂函数的变化特征。
- In China the density of forest has fallen since 1949 in many parts of the country but the area of its forested land has steadily risen. 自从1949年以来，中国的许多地方森林的密度在下降，但森林的面积在稳定上升。
- The density of population in this city is very high. 这个城市的人口密度非常高。
- He owns a large tract of forest. 他拥有一大片森林。
- The area had a population density of five people per square mile. 该地区人口密度为每平方英里五人。
- Study on Optimum Years of Maintaining Forest Road Network 林道网合理养护年限的研究
- Woodland forest cover of more than 90% canopy density of 0.8. 林地森林覆盖率达90%25以上，林冠郁闭度为0．8。
- Modernization of road network in Huizhou City? 惠州市公路网现代化思考?
- Effects of Mountain Forest Road Network on Forest Land Environment 山地林道网对林地环境的影响
- Do you know the density of population in this area? 你知道这个地区的人口密度吗?
- A STUDY OF DYNAMIC MODEL FOR FOREST ROAD NETWORK SYSTEM 林区道路网系统动态模型的研究
- Japan has a high density of population. 口密度很大。
