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commercial forests    
相关语句
  商品林
    Management Techniques for Commercial Forests of Main Forestation Tree Species in Zhejiang Province and Its Application and Popularization
    浙江省主要造林树种商品林经营技术及推广应用
短句来源
    Study on trees competition indexes to Larix olgensis commercial forests
    长白落叶松商品林林木竞争指标的研究
短句来源
    Analysis of current situations of commercial forests construction in abroad and home
    国内外商品林建设的现状分析
短句来源
    Research of System Reform and Operation for Commercial Forests Business
    商品林经营企业体制改革与运营的研究
短句来源
    This paper examines problems existing in the management of commercial forests and discusses the difference between commercial forestry and traditional forestry, points out the features of commercial forestry and analyzes the relationship between forestry that is meant to benefit the public and forestry industry.
    分析了当前商品林经营管理中存在的问题 ,探讨了商品林与传统林业的区别、商品林的基本特征、商品林理论以及与公益林和林产工业的关系 ,提出了商品林是实行林业分类经营改革的产物 ,它与传统林业具有本质区别 ; 商品林与公益林既有联系 ,又有区别 ,商品林主要是解决林业的次要问题 ;
短句来源
更多       
  商品林
    Management Techniques for Commercial Forests of Main Forestation Tree Species in Zhejiang Province and Its Application and Popularization
    浙江省主要造林树种商品林经营技术及推广应用
短句来源
    Study on trees competition indexes to Larix olgensis commercial forests
    长白落叶松商品林林木竞争指标的研究
短句来源
    Analysis of current situations of commercial forests construction in abroad and home
    国内外商品林建设的现状分析
短句来源
    Research of System Reform and Operation for Commercial Forests Business
    商品林经营企业体制改革与运营的研究
短句来源
    This paper examines problems existing in the management of commercial forests and discusses the difference between commercial forestry and traditional forestry, points out the features of commercial forestry and analyzes the relationship between forestry that is meant to benefit the public and forestry industry.
    分析了当前商品林经营管理中存在的问题 ,探讨了商品林与传统林业的区别、商品林的基本特征、商品林理论以及与公益林和林产工业的关系 ,提出了商品林是实行林业分类经营改革的产物 ,它与传统林业具有本质区别 ; 商品林与公益林既有联系 ,又有区别 ,商品林主要是解决林业的次要问题 ;
短句来源
更多       
  商品林
    Management Techniques for Commercial Forests of Main Forestation Tree Species in Zhejiang Province and Its Application and Popularization
    浙江省主要造林树种商品林经营技术及推广应用
短句来源
    Study on trees competition indexes to Larix olgensis commercial forests
    长白落叶松商品林林木竞争指标的研究
短句来源
    Analysis of current situations of commercial forests construction in abroad and home
    国内外商品林建设的现状分析
短句来源
    Research of System Reform and Operation for Commercial Forests Business
    商品林经营企业体制改革与运营的研究
短句来源
    This paper examines problems existing in the management of commercial forests and discusses the difference between commercial forestry and traditional forestry, points out the features of commercial forestry and analyzes the relationship between forestry that is meant to benefit the public and forestry industry.
    分析了当前商品林经营管理中存在的问题 ,探讨了商品林与传统林业的区别、商品林的基本特征、商品林理论以及与公益林和林产工业的关系 ,提出了商品林是实行林业分类经营改革的产物 ,它与传统林业具有本质区别 ; 商品林与公益林既有联系 ,又有区别 ,商品林主要是解决林业的次要问题 ;
短句来源
更多       
  商品林
    Management Techniques for Commercial Forests of Main Forestation Tree Species in Zhejiang Province and Its Application and Popularization
    浙江省主要造林树种商品林经营技术及推广应用
短句来源
    Study on trees competition indexes to Larix olgensis commercial forests
    长白落叶松商品林林木竞争指标的研究
短句来源
    Analysis of current situations of commercial forests construction in abroad and home
    国内外商品林建设的现状分析
短句来源
    Research of System Reform and Operation for Commercial Forests Business
    商品林经营企业体制改革与运营的研究
短句来源
    This paper examines problems existing in the management of commercial forests and discusses the difference between commercial forestry and traditional forestry, points out the features of commercial forestry and analyzes the relationship between forestry that is meant to benefit the public and forestry industry.
    分析了当前商品林经营管理中存在的问题 ,探讨了商品林与传统林业的区别、商品林的基本特征、商品林理论以及与公益林和林产工业的关系 ,提出了商品林是实行林业分类经营改革的产物 ,它与传统林业具有本质区别 ; 商品林与公益林既有联系 ,又有区别 ,商品林主要是解决林业的次要问题 ;
短句来源
更多       

 

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  commercial forests
In commercial forests of the temperate/boreal zones forest management practices including fertilization regimes focusing on sustainably increasing yields have been utilized for several centuries.
      
Optimizing carbon sequestration in commercial forests by integrating carbon management objectives in wood supply modeling
      
Insuring Southeast Asian commercial forests: Fire risk analysis and the potential for use of data in risk pricing and reduction
      
We assume that the influence of downed deadwood on litter dwelling beetles will also be effective in commercial forests and stop the downward spiral with continuing loss of species.
      
These results have important implications for the control of this week in commercial forests.
      
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The author considers that forestry should be managed intensiv-ely, but according to China's condition, it is impossible for the govern-ments to spend large amount of funds and lands on intensive management,whereas, agroforestry is a form of labor-intensive management, by whichnatural force can be fully utilized and the superiority of rich laborresources can be brought into play. It is particularly suitable to China'scondition and therefore is a practical approach to promote forestry develo-pment. This paper...

The author considers that forestry should be managed intensiv-ely, but according to China's condition, it is impossible for the govern-ments to spend large amount of funds and lands on intensive management,whereas, agroforestry is a form of labor-intensive management, by whichnatural force can be fully utilized and the superiority of rich laborresources can be brought into play. It is particularly suitable to China'scondition and therefore is a practical approach to promote forestry develo-pment. This paper reviews the long history of Agroforestry in China.As early as before liberation the rotation of crop and Chinese fir hadbeen practised in Damiao mountainous areas. The forest farmers ofDong nationality in Southeast Guizhou Province created the experiencesto grow "18-year-old Chinese fir" by intercropping trees and grains.Much new creations have come into being since liberation. The practiceof the Diversified Economy Farm of Weihe Forestry Bureau in Hei-longjiang Province is to establish commercial forests on mountains,which also serve as resource bases of wild medicinal material and berry.and to plant trees and crops on wet lands of the slope and grow fish inthe stream. The intercropping of crops and Paulownia trees has been wi-dely practised in the vast plain areas of Henan, Anhui and Shandong pro-vinces. The Forestry Bureau of Jianyang Prefecture, Fujian Province hasdone some research work and drawn conclusions theoretically. Accordingto the author it has great potentialities and more research work shouldbe needed.

农林复合经营是一种充分利用自然力的劳动密集型集约经营方式。作者认为它适合中国国情,是一种切实可行的促进林业发展的途径,文中还详细介绍了中国农林复合经营中的成功范例。

Comprehensive estimation on forestry research programs of Zhejiang province during "7.5" showed that there exist key programs such as beneflt increase of commercial forest, breeding of Chinese fir, Tungoiltree and high-yield bamboo shoot producing forest, etc. common ones like basic study on function of forest ecological system and some effective ones, Meanwhile, there exist problemes like insufficiency and delay of funds.

本文对“七五”期间浙江省的林业科研项目作了综合评价,认为既有用材林增益,杉木、油桐育种及优质高产笋用林等重点项目,也有其它一般项目,既有森林生态系统功能研究一类长远基础研究,也有生产上见效较快的项目,立题准确,成效显著。但是,从近几年科研管理工作实践看,科研计划与经费难以配套,经费不足并且下拨时间太迟,有碍于课题开展。

The development of National Forests of the United States hasgone through four stages: stage of formation, stage of comprehensivedevelopment, stage of multiple use, and stage of intensive management.Named Forest Reserves at its early stage, the National Forests wereunder administration of the Department of Interior and were withdrawn fromuse, therefore developed very slowly. During his administration, PresidentTheodore Roosevelt gave emphasis on utilization of Forest Reserves andtransfered...

The development of National Forests of the United States hasgone through four stages: stage of formation, stage of comprehensivedevelopment, stage of multiple use, and stage of intensive management.Named Forest Reserves at its early stage, the National Forests wereunder administration of the Department of Interior and were withdrawn fromuse, therefore developed very slowly. During his administration, PresidentTheodore Roosevelt gave emphasis on utilization of Forest Reserves andtransfered them to the Forest Service in the Department of Agriculture.In accordance with the Weeks Law enacted by Congress in 1911, theprivate forests along the navigable streams were purchased by the federalgovernment and became State-owned, since than forestry in the United Statesgot comprehensively developed. Following the passage of Multiple Use andSustained Yield Act by Congress in 1960, the goal of National Forests ma nagement had been changed from timber production to comprehensiYe mana-gement. Over the recent decades, the area of US commercial forest land hasbeen decreasing, while the growing stock is increasing, the United States hastaken the road of intensive management of its forests. This paper gives adetailed description of the existing management system and the relevanteconomic and technical policies of the National Forests in the UnitedStates.

文章回顾了美国国有林的发展历程,并介绍了一些重大历史事件。作者着重阐明了美国国有林的管理体制和技术经济政策。

 
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