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Forestry management methods on alleviation of autotoxicity in Chinese fir plantation were also studied. Root-stumps from last Chinese fir pure plantation have a negative effect on the replanted Chinese fir saplings because of phenolics from decomposing root-stumps.

本文还针对减轻杉木人工林化感自毒作用的林业经营措施进行了研究,发现杉木人工纯林中的采伐剩余物根桩对下茬杉木幼树的更新有不利的影响,这种不利的影响来自于根桩分解过程中释放的酚类化感物质。

And in the end, the paper gives a case study on the protection maturity of coastal Casuarina equisetifolia protection forest in Dongshan county, Fujian province, and analyses its regeneration cutting age.

最后,应用上述理论分析,对于福建省东山县沿海木麻黄防护林的防护成熟进行了实证分析,并分析了其更新采伐年龄的决策。

Wild animals because of the "Great Leap Forward" and the "Cultural Revolution" period of over-exploitation of forests and a significant reduction in surface, but there is still more than 4,000 species, including two national protected animals Chrysolophus pictus, kestrel, eagle Hu, small indica, small otter, a provincial key protected animals leopard, big cat, red fox, red abdominal crested cuckoo, cuckoo hawk, mountain have Andrias, butterflies, squirrels, purple crabs,"glass fish" and other animals.

野生动物因&大跃进&和&文革&时期对森林的过度采伐面而大为减少,但仍有4000余种,其中有国家二级保护动物红腹锦鸡、红隼、雕鹄、小灵猫、小獭,有省重点保护动物豹、大灵猫、赤狐、红腹凤头鹃、鹰鹃、山地有大鲵、蝴蝶、松鼠、紫蟹、&玻璃鱼&等观赏动物。

Check, acceptance and allocation of cutting area regarding the forest harv esting operations

育林费,确保更新造林的质量。森林采伐作业则按&国有林区伐区质量作业检查标准&

Therefore, on Changbai Mountains if only timber production is considered, cutting the main coniferous species having the same diameter should be in the order: Abies nephrolepis, Pinus koraiensis, and Picea koraiensis.

单纯从木材收获的角度出发,在长白山地区,相同径阶下主要针叶树种的采伐顺序应为臭冷杉Abies nephrolepis,红松Pinus koraiensis和红皮云杉Picea koraiensis。

All illegal acts, such as deforestation for farmland reclamation, illegal cutting, illegal requisitioning and occupation of forest land, overcutting, the encroachment on the rights and interests of forest farmers, should be dealt with strictly according to law.

对毁林开垦、乱砍滥伐林木、乱批滥占林地、超限额采伐以及侵犯林农合法权益等一切违法行为,都要严格依法处理。

Roading Engineer, Wood Supply Department

林木采伐部,道路经理

For mature timber stands, the approaches of selection cutting, clear cutting and shelterwood cutting shall be applied respectively in light of different situations.

一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,皆伐应当严格控制,并在采伐的当年或者次年内完成更新造林

This paper discussed the distribution of forest resources in the tropics, their main types, main characteristics and present management status, and proposed twelve management modes, and these modes include establishing nature conservation region, eco-public-benefit forest management, extravisme, limiting logging and regeneration after logging, logging three and remaining seven method, tropical shelterwood system, sylviculture douce, whole cultivation method, specialized cultivation method, strip clearcutting method, developing tree species of lacking noted and nature regeneration, closing hillsides to facilitate afforestation.

本文对世界热带地区的森林资源分布、基本类型、主要特征、世界次生林的经营现状和主要经营方式讨论。这些经营方式包括建立自然保护区、生态公益林经营、&采掘主义&、限制采伐和伐后更新、&砍三留七&法、&扶持&式育林法、&抑制&式育林法、整体培育法、专门培育法、带状皆伐法、开发欠知名树种、自然更新和封山育林。

2By using analytic hierarchy process, linear programming, multiobjective decision, principal component analysis and the analysis models integrated with GIS to process the spatial model analysis of the FOSDS.(3) Having finished the data of statistics, site type classification, management type organization, forest felling-plan, silvicultural planning, optimization of project, forest conversation pragramming and special topic map.

利用层次分析法、线性规划、目标规划、主成分分析以及Citystar软件的分析模型进行模型处理与分析;(3)完成了资源数表统计、立地类型划分、经营类型组织、木材采伐规划、营林规划、森林保护规划、方案优化及林业专题图的制作。

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推荐网络例句

I am accused of being overreligious," she said in her quiet, frank manner,"but that does not prevent me thinking the children very cruel who obstinately commit such suicide.""

客人们在卡罗利娜·埃凯家里,举止就文雅一些,因为卡罗利娜的母亲治家很严厉。

Designed by French fashion house Herm è s, this elegant uniform was manufactured in our home, Hong Kong, and was the first without a hat.

由著名品牌 Herm è s 设计,这件高贵的制服是香港本土制造,是我们第一套不配帽子的制服。

Do not 'inflate' your achievements and/or qualifications or skills .

不要 '夸大' 你的业绩或成果,条件或者技能。