查询词典 silviculture

At present, the traditional craft of silviculture planning and design and management in Beijing have laged behind, and it is unable to meet the needs of developing rapidly in the modern forestry.

对于林业生态工程建设中的造林规划设计及管理，目前以传统的作业和管理方式已经日渐落后，无法适应现代林业迅速发展的需要。

Its scope of business to silviculture, paper, ink, printing, trade and logistics and other fields, pulp, paper, ink productivity in more than 20 million tons and currently employs more than 2,000 people, all kinds of professional and technical personnel more than 400 people.

其经营范围涵盖育林、造纸、油墨、印刷、贸易及物流等领域，浆、纸、油墨年生产力20多万吨，现有员工2000多人，各类专业技术人员400多人。

1The Key Laboratory for Silviculture and Conservation of Ministry of Education, Beijing Forestry University,

1北京林业大学省部共建森林培育与保护教育部重点实验室；2国家林业局经济发展研究中心；3浙江省临安市昌化国营林场

The advanced technology and newest researched results of forest silviculture and utilization are absorbed fully.

书中充分地吸收了森林培育和森林利用的最新技术和最新研究成果，是新世纪第一部以退耕还林树种为题材的专著。

The main topics of this course include forest trees seeds, silviculture and forest protection.

森林学2主要课程内容包括林木种子学，育林学及森林保护学。

These can be based on integrated management and silviculture regime and for the realization of local sustainable development of forest resources.

以山西省国营三道川林场为例，论证了模型的适用性，为该林场Ⅰ等林地用材林的树种结构及其龄级结构调整提出了优化调整方案

It can realize scientific silviculture planning and designt, and dynamic , omni-directional supervision and management to the on-going project.

在项目验收阶段，系统还能紧密结合实地考核验收，实现在计算机上辅助验收。

CHANGES IN MANAGEMENT, HARVESTING, SILVICULTURE AND MONITORING

变化包括经营，砍伐，造林和监督

Indicators, and the main technical indicators of timber production, silviculture, multi-use and

限额和各林场的森林资源状况，确定各林场的年木材采伐量，组织森林作业调查设计

Laboratory of Silviculture of State Forestry Administration; Research Institute of Forestry; Chinese Academy of Forestry; Beijing 100091; China

中国林业科学院林业研究所；国家林业局林木培育实验室；北京 100091

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。