用材林、经济林、薪炭林的林地使用权；
The woodland use right for timber stands, economic forests and firewood forests;
重点地区速生丰产用材林基地建设工程。
Fast-Growing and High-Yielding Timber Base Construction Program in Key Areas.
在没有薪炭林的海口市，薪柴主要来源于防护林和用材林。
As there is no fuelwood forest in Haikou city, the firewood is collected chiefly from the protective forest and timber forest.
川西山区是四川最大的用材林基地，也是我国主要木材产区之一。
Western Sichuan's mountain region is the largest commercial forest base in Sichuan province and also one of the important timber areas in China.
成熟的用材林应当根据不同情况，分别采取择伐、皆伐和渐伐方式。
For mature timber stands, the approaches of selection cutting, clear cutting and shelterwood cutting.
大力发展人工用材林是世界各国历来采取的缓解木材不足的重要措施。
To develop timber plantation intensively is an important measurements to assuage the wood deficiency in the world.
必须加强用材林林分抚育使其达到合理的林分结构以使其经济效益最大化。
Therefore, appropriate stand tending measures should be taken to improve the forest structures of timber forest, so as to gain the optimum economic benefits.
本文主要探讨以用材林为主的森林采伐更新效益综合评价的几个基本问题。
This paper concerns mainly some basic problems of the integrated assessment of the benefits of cutting and regeneration of the forests, particularly of the timber forests.
杨树是我国重要的防护林和用材林树种，但病虫害的迅猛发展造成了巨大损失。
Poplar is the important tree species for shelterbelt and timber forest in our country. However, rapidly and fiercely-spreading by disease and pest has led to tremendous economic losses.
为减轻实施天然林保护工程对木材生产带来的压力，加快用材林基地建设势在必行。
Its imperative to accelerate the construction of timber forest base, in order to make up the shortage of timber, which resulted from the protection of natural forest, for the forest production.
由于采伐限额制度在短期内无法改变，这将会直接影响到林农对用材林的长期投入。
The forest farmers'input will to the timber forest is affected not only their own characteristics, capital and the forest land area, but also by the logging quota system.
在定级的基础上，提出了两种用材林林地估价方法，即基准地价修正法和地价模型法。
On the basis of grading, two evaluating methods of timber woodland are advanced, which are standard land-value modified method and land-value model method.
落叶松人工林是我国北方林区主要用材林之一，对我国的国民经济建设起到重要作用。
Larch plantation is one of the main commercial forests in north China and has an important contribution to the national economy.
目前，我国绝大对数地区营造的人工林均以用材林模式为主，为了保证造林初期的成活，初植密度普遍较大。
Nowadays, most of plantation are timber forest used in many area in China and for guaranteeing the high survival rate, the density of initial stocking of trees is generally large.
研究结果表明，该模型是符合福建省西北部当地的地租水平的，可方便、快捷地对用材林林地资产进行评定估。
The research showed that, this model is conformable to the local woodland rent level in northwestern of Fujian province, which can be used directly in assessment of timber woodland property.
提出处于培育中的人工用材林的营林产值应分立木蓄积产值和可育性产值两大部分，并提出划分立地类别进行产值统计的办法。
It points out that the output value of silviculture of artificial timber stand should be divided into two parts, the output value of stumpage and the output value of cultivability.
但另一方面，我国用材林面积和单位面积上森林蓄积量都在锐减，这就在客观上增加了伐区区划和主伐调查设计的劳动量和劳动强度。
On the other hand, the area of usable forest and the volume of standing timber in one unit area are descending sharply in our country, which aggravates the labor intensify impersonally.
在调查研究全省现有低产林及疏林资源基础上，着重分析了低产用材林形成的原因。并提出了低产用材林改造的技术路线与相应措施。
Technique and countermeasures were proposed for transformation of low yield timber forest after analysis on its causes through investigation on current resources of low yield and scattered forest.
在调查研究全省现有低产林及疏林资源基础上，着重分析了低产用材林形成的原因。并提出了低产用材林改造的技术路线与相应措施。
Technique and countermeasures were proposed for transformation of low yield timber forest after analysis on its causes through investigation on current resources of low yield and scattered forest.
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