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forest ecosystem
相关语句
  森林生态系统
    Influence of forest fire disaster on forest ecosystem in Great Xing’anling.
    大兴安岭森林火灾对森林生态系统的影响
短句来源
    Natural cybernetics and self_organization theory are the academic bases and forest ecosystem management is technological one.
    分析森林有害生物生态控制的特点、理论基础以及技术基石; 认为自然控制论和自组织理论是森林有害生物生态控制的理论基础,森林有害生物生态控制的技术基石是森林生态系统管理;
短句来源
    The forest fire occurs very frequently in our country. Fire acts on and effects forest ecosystem directly as a ecology element.
    我国是一个森林火灾频发的国家,火作为一个生态因子直接作用和影响着森林生态系统
短句来源
    Author believed that these studies have had great advances in both theory and practice, guided and promoted for understanding the place and action of rodents in forest ecosystem and making the effective control to forest harmful rodents.
    认为这些工作在理论和实践上取得很大进展,对于认识啮齿类在森林生态系统中的地位、作用及进行有效的森林鼠害防治起到了指导和推动作用。
短句来源
    So fromviewpoints of both conserving forest ecosystem and utilizing biological resources,the studies on sustainable developmentand utilization of forest pests should not be ignored.
    无论是从保护森林生态系统的角度,还是从资源利用的观点来看,对森林害虫的开发利用都应遵循生物资源持续发展的原则。
短句来源
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  森林生态系统
    Influence of forest fire disaster on forest ecosystem in Great Xing’anling.
    大兴安岭森林火灾对森林生态系统的影响
短句来源
    Natural cybernetics and self_organization theory are the academic bases and forest ecosystem management is technological one.
    分析森林有害生物生态控制的特点、理论基础以及技术基石; 认为自然控制论和自组织理论是森林有害生物生态控制的理论基础,森林有害生物生态控制的技术基石是森林生态系统管理;
短句来源
    The forest fire occurs very frequently in our country. Fire acts on and effects forest ecosystem directly as a ecology element.
    我国是一个森林火灾频发的国家,火作为一个生态因子直接作用和影响着森林生态系统
短句来源
    Author believed that these studies have had great advances in both theory and practice, guided and promoted for understanding the place and action of rodents in forest ecosystem and making the effective control to forest harmful rodents.
    认为这些工作在理论和实践上取得很大进展,对于认识啮齿类在森林生态系统中的地位、作用及进行有效的森林鼠害防治起到了指导和推动作用。
短句来源
    So fromviewpoints of both conserving forest ecosystem and utilizing biological resources,the studies on sustainable developmentand utilization of forest pests should not be ignored.
    无论是从保护森林生态系统的角度,还是从资源利用的观点来看,对森林害虫的开发利用都应遵循生物资源持续发展的原则。
短句来源
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  “forest ecosystem”译为未确定词的双语例句
    Study on the Control of Main Harmful Rodents at the Planted Forest Ecosystem in Yan'an
    延安林区主要有害啮齿动物的防治研究
短句来源
    Effects of fire on major forest ecosystem processes: An overview.
    火对森林主要生态系统过程的影响(英文)
短句来源
    In the present paper,Esterase isozyme zymogram polymorphisms of 22 Beauveria bassianaand 21 Paecilomyces farinosusstrains from the forest Ecosystem were studied by vertical slab Polyacrylamide gel electrophoresis.
    采用聚丙烯酰胺凝胶电泳技术对不同来源的 2 2株球孢白僵菌和 2 1株粉拟青霉酯酶同工酶的酶谱多样性进行了研究。
短句来源
    The longer fire cycle can cause the fuel loading increasing and change fire frequency, fire type and fire intensity in the forest ecosystem.
    火周期的延长会引起森林可燃物载量增加,并导致火频度、火灾类型和火强度发生改变。
短句来源
查询“forest ecosystem”译词为用户自定义的双语例句

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  forest ecosystem
Fine roots have enormous surface areas, growing and turning over quickly, which plays an important role in terms of substance cycling and energy flow in the forest ecosystem.
      
The soil microbial biomass and nutrient status under the native broadleaved forest and Cunninghamia lanceolata plantations at the Huitong National Research Station of Forest Ecosystem (in Hunan Province, midland of China) were examined in this study.
      
Chemical contents in precipitation change significantly when different kinds of external chemical materials are added, removed, translocated and transformed to or in the forest ecosystem along with precipitation.
      
Based on the data collected from 31 plots and 93 soil samples, the state of health of the forest ecosystem is discussed and the appropriate FHA age has been determined.
      
Castanea squinii Dode, an endemic tree widely distributed in China, plays an important role both in chestnut breeding and forest ecosystem function.
      
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More and more forest diseases have made their appearence in Zhejiang province, which has caused enormous losses. The fundamental cause putting the forest diseases out of control lies in the deterioration of the natural forest ecosystem caused by various factors and the failure in establishing one promptly in artifical forests. In the forest disease control practice, the authors esteem it important to persevere in the implementation of the policy "Placing emphasis on prevention while promoting...

More and more forest diseases have made their appearence in Zhejiang province, which has caused enormous losses. The fundamental cause putting the forest diseases out of control lies in the deterioration of the natural forest ecosystem caused by various factors and the failure in establishing one promptly in artifical forests. In the forest disease control practice, the authors esteem it important to persevere in the implementation of the policy "Placing emphasis on prevention while promoting intergrated control" and they explain that, taking the theory of ecology, pathology and economics as its foundation, the forest management as the key step, and bringing into full play all the other control measures is what the intergerated control shoud be. The authers urge in the papre to speed up the tempo of the work on biological control, give play to the functions of the ecosystem of artifical forests on disease control and explore the root causes of new and doubtful diseases to achieve great improvement over the work in the prevention and control of forest diseases.

近年来,我省森林病害越来越重,究其原因,主要是由于天然林的森林生态系统不断恶化,而人工林的森林生态系统又未及时恢复之故。在贯彻“预防为主、综合防治”的方针时,应以生态学、病理学、经济学观点为基础和以营林措施防治为主,并充分发挥其它措施(包括化学防治)的应有作用,对森林病害的生物防治与人工林生态系控制病害以及新病害及疑难病害的研究工作,必须迅速加强。

From three aspects, namely the faunal distribution, ecology and control of harms, this paper made a summary for the studies of forestry redents in the past over thirty years in our country. Author believed that these studies have had great advances in both theory and practice, guided and promoted for understanding the place and action of rodents in forest ecosystem and making the effective control to forest harmful rodents.

本文作者从区系及生态分布、生态生物学和危害与防治兰个方面,对三十多年来我国林栖啮齿动物的研究工作进行了系统的总结。认为这些工作在理论和实践上取得很大进展,对于认识啮齿类在森林生态系统中的地位、作用及进行有效的森林鼠害防治起到了指导和推动作用。

This inverstigation, as a part of the plant and animal survey in the project on tropical forest ecosystem in Jianfenling mountain, Hainan Island, was conducted in 1981—1983. About 4000 insects have been collected, of which the Lepidoptera accounts for 50% and the Coleoptera and Diptera accounts for 13% and 11% respectively. The rest belongs to the other 17 orders. Take 26 families of moths for an example, the species of Noctuidae, Geometridae and Pyralidae are the dominant families, which accounts for...

This inverstigation, as a part of the plant and animal survey in the project on tropical forest ecosystem in Jianfenling mountain, Hainan Island, was conducted in 1981—1983. About 4000 insects have been collected, of which the Lepidoptera accounts for 50% and the Coleoptera and Diptera accounts for 13% and 11% respectively. The rest belongs to the other 17 orders. Take 26 families of moths for an example, the species of Noctuidae, Geometridae and Pyralidae are the dominant families, which accounts for 69% of the total collected moths. One character in population quantity is large in small population and small in large population. There are 17 dominant species, among which 10 species are in pyralidae, 4 species in Hypsidae, 2 species in Arctiidae and 1 species in Uraniidae. Most sp les of Acrdiidae and Pentatomidae have been found in tropical semidecidous monsoon forest and most species of Thrips and Moths in tropical mountainous rain forest. According to the composition of fauna, most species of Thripidae, Phlothripidae, Pentatomidae and Sphingidae are distributed in Oriental region. Some species local species in Hainan Island obtained are Antillothrips flavicornis Zhang, Dinothrips hainanensis Zhang, Agaeus tessellatus Dallas, Dabessus albovittatus Hsiao et Cheng and Rhagastis mongoliana pallicosta Mell. It may be concluded that the charateristics of tropical forest insects are abundant in species, less quantity for each species, more than one generation and no dormancy but diapause for widespread species.

经三年的采集调查,我们获得该林区昆虫20目4000余种,以鳞翅目种类最多,鞘翅目和双翅目次之,余下的17目为数很少。虫口数量以小种群特多,大种群特少为其特征。文中对蝗科、蝽科、蓟马和蛾类等昆虫在四种森林植被类型中的分布作了比较,并列举出海南地方特有种5种。有关热带林虫的特点,也作了初步归纳。

 
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