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- Study on the Productivity of Poplar Timber Forest in Nenjiang Sandy Land 嫩江沙地杨树用材林生产力的研究
- poplar timber forest 杨树用材林
- Timber forest. 用材林
- For the first time, the Specialist-aided system was constructed by Delphi and the ADO database access technology in the foundation of the timber forest subcompartment evaluation and rate average evaluation. 该专家辅助系统在用材林小班评估及总体评估基础上首次采用时新先进的Delphi语言及ADO数据库访问技术构建专家辅助系统。
- Abstract： Artificial timber forest dominated by pine and fir can cause loss of water and soil, decrease of forestland productivity and protection function , and easy occurrence of pests and diseases. 摘 要： 营造松、杉为主的人工用材林，引起水土流失，林地生产力降低，防护功能差，易发生病虫害，且投资大。
- Breakingfruit Chinkapin,a dominant indigenous tree species in of China, Good in fast-growing,vast adaptability and short strike time,it also can be big area planted as firewood and timber forest. 黎蒴栲是中国南方的一种乡土树种，速生性强，适应性广，轮伐期短，大面积种植可以为薪炭林和用材林。
- In the 1960s, China began plantation of timber forests, construct of forest shelterbelt and construct nature reserve, and set up state forest farms. 从上个世纪六十年代开始营造用材林和防护林，建设自然保护区和国营林场；
- ECONOMIC BENEFIT OF INTENSIVE CULTIVATION OF POPLAR TIMBER PLANTATION 杨树用材人工林集约栽培经济效益研究
- Reform of the System of the Price of Timber Forest 用材林林价体制改革探索
- fast - growing and high - yielding timber forest 速生丰产用材林
- fast-growing and high-yield timber forest 速生丰产用材林
- non - timber forest products (NTFPs) 林副产品
- NTFP ( non- timber forest product) 林下资源
- The firm's tender for the supply of timber has been accepted. 那家商号的供应木材投标已被接受。
- types of low yield timber forest 低产用材林类型
- Fixing compression deformation by isocyanate to poplar timber cut from artificial stand 异氰酸酯树脂固定人工林杨木压缩变形的研究
- Quality Study on Veneer and Plywood made from Poplar Timber from Plantation with Different 不同培育措施下人工林杨木旋切单板和胶合板质量的研究
- A poplar tree, especially a cottonwood. 三角叶杨一种杨树，尤指三角叶杨
- The forest will act as a defense against desert dust. 森林能起防御沙漠灰沙的作用。
- He's being talked up as presidential timber. 人们说他具有当总统的气质。
