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timber forest resource
相关语句
  用材林资源
     COMPUTER SIMULATION OF TIMBER FOREST RESOURCE IN CHINA AND PREDICTION OF THE TREND OF DEVELOPMENT
     我国用材林资源的计算机模拟及其发展趋势预测
短句来源
     Chinese fir planted forest is the main part of timber forest resource in Zhejiang Province,China.
     杉木人工林是浙江省主要用材林资源
短句来源
  相似匹配句对
     forest .
     林。
短句来源
     Sustainable forest management: from timber to biodiversity
     森林可持续经营:从木材到生物多样性
短句来源
     Quality Investigation on the Commercial Timber Forest
     桥山林业局国有林场商品用材林质量调查分析
短句来源
     Preliminary Study of Timber Forest Resources Appralsal.
     用材林资产评估初步研究
短句来源
     Function of Timber Transport Certificate in Forest Resource Management
     木材检查站发放木材运输证在森林资源管理中的作用
短句来源
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The state forests face a crisis of timber forest resources and the forest enter-prises are in an economic dilemma. To seek a solution to overcome the "double crisis",a comprehensive research and analysis are made in this paper on the economic dilemmato which foreign state forests are reduced, on the cause of the dilemma, and thc policyto get out of it. Thus we may learn from their experiences. The Japanese and Germanstate forest enterprises also are in an economic dilemma. The cause...

The state forests face a crisis of timber forest resources and the forest enter-prises are in an economic dilemma. To seek a solution to overcome the "double crisis",a comprehensive research and analysis are made in this paper on the economic dilemmato which foreign state forests are reduced, on the cause of the dilemma, and thc policyto get out of it. Thus we may learn from their experiences. The Japanese and Germanstate forest enterprises also are in an economic dilemma. The cause of dilemma iscommom in nature among all state forest enterprises, although conditions vary in allcountries. The common causes are imperfect forest management system, high manage-ment costs, low wood price and price-increase index, shift of forest management tomulti-benefit management and the impact of wood import, etc. Different policies areadopted in different countries to get out of the dilemma, according to each own particu-lar conditions, such as system reform, simplification of organization, adjustment ofpolicies, financial support, and finding new sources of financial income.

作者着重就当今国外国有林的经济危困、产生的原因及对策进行了综合分析研究。日本、德国等一些国家当今均面临着经济危困的窘境,其原因主要是管理体制不善、管理费用大、木材价格和增长指数低、森林向多效益经营方向转移、受进口木材的冲击等。一般是采取体制改革、精简机构、调整政策、经济扶持、开辟新财源等对策,来摆脱经济上的困境.本文可为寻求摆脱我国国有林的“两危”对策提供借鉴。

Chinese fir planted forest is the main part of timber forest resource in Zhejiang Province,China.By the model statistical analysis method,the authors researched and decided the growth model,then calculated the quantitative maturity age,and decided the economical maturity age by maximum land expectation value and maximum internal rate of return,finally decided the cutting age of Chinese fie planted forest.The result is that...

Chinese fir planted forest is the main part of timber forest resource in Zhejiang Province,China.By the model statistical analysis method,the authors researched and decided the growth model,then calculated the quantitative maturity age,and decided the economical maturity age by maximum land expectation value and maximum internal rate of return,finally decided the cutting age of Chinese fie planted forest.The result is that the quantitative maturity age of Chinese fir is 24~29,the economical maturity age is 17~27,the cutting age is 19~26,and they are different among forests on different sites.

杉木人工林是浙江省主要用材林资源。根据调查资料 ,经过模型拟合和统计分析 ,确定林分生长模型 ,据此计算数量成熟龄 ,以土地期望价最高和内部收益率最大确定经济成熟龄 ,并确定主伐年龄。结果表明 ,杉木人工林的数量成熟龄为 2 4~ 2 9a ,经济龄成熟为 1 7~2 7a ,主伐年龄为 1 9~ 2 6a。不同地位指数的林分间有一定的差异 ,其中 8和 1 0地位指数级主要培育小径材 ,应尽可能提前采伐 ,1 2和 1 4地位指数级培育中小径材 ,可适当提前采伐 ,1 6地位指数级以培育中径材为主 ,可适当延长采伐 ,1 8及 1 8以上地位指数级 ,培育中大径材 ,应尽可能延长采伐年限。表 2参 8

The problems existing in the construction of timber forest resources in Fuzhou City are presented.The advantages in promoting the development of the resources are studied.And then,the methods on the sustainable development of timber forest resources for the furture are given.

对抚州市目前用材林森林资源建设存在的问题和推进用材林森林资源发展有利条件进行调查与研究。对今后用材林资源建设可持续发展提出相关对策。

 
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