助手标题  
全文文献 工具书 数字 学术定义 翻译助手 学术趋势 更多
查询帮助
意见反馈
   林木 在 环境科学与资源利用 分类中 的翻译结果: 查询用时:0.083秒
图标索引 在分类学科中查询
所有学科
环境科学与资源利用
林业
植物保护
农业经济
生物学
农业基础科学
农艺学
国际法
园艺
更多类别查询

图标索引 历史查询
 

林木
相关语句
  “林木”译为未确定词的双语例句
    The proportion of root biomass to total biomass of E. urophylla and P. massoniana were respectively 65.16% and 15.08% for pollution plots, while 40.50% and 14.48% for non-pollution plots.
    尾叶桉和马尾松根系生物量占林木层生物量比例:污染区样地分别为65.16%和15.08%; 清洁区分别为40.50%和14.48%。
短句来源
    The Qualitative Determination of Hydrocarbon Emitted from Woods and Vegetations over Beijing Area
    北京地区林木、植被排放碳氢化合物的定性监测
短句来源
    Study on the Effects of Forestland Soils Pollution to Soil and Nutrition of Woods Histiocyte
    林地土壤污染对土壤及林木组织中养分影响的研究
短句来源
    Use of Sewage Sludge and Refuse Compost as Medium for Sapling Cultivation.
    污泥和垃圾堆肥用作林木育苗基质的研究
短句来源
    While the shrub, perennial pasture and woodland in hill having covered the ground all the time, and theirs monthly dynamic cover behave shrub>perennial pasture>woodland in hill >crop>annual pasture.
    灌木、多年生牧草与林木则全年覆盖着地面,覆盖度的月动态变化表现为灌木>多年生牧草>林木
短句来源
更多       
查询“林木”译词为用户自定义的双语例句

    我想查看译文中含有:的双语例句
例句
为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法,我们为您准备了出自英文原文的大量英语例句,供您参考。
  forest tree
This paper presents a brief review of traditional methods of studying genetic variation in forest tree species and introduces a new, integrated population genomics approach.
      
Therefore, only the heterotrophic part of tree biomass determines annual carbon losses in a forest tree population.
      
According to genetic variation parameters, three out of six populations (Akdagmadeni-Yozgat, Refahiye-Erzincan and Vezirkopru-Samsun) appear to be preferable populations for genetic conservation and forest tree breeding programs.
      
Plant parasitic nematodes from a forest tree nursery in southern Spain with some notes about the influence of soil storage on th
      
___TAGSTART___BR___TAGEND___A nematological survey was carried out in a forest tree nursery in Andujar, southern Spain.
      
更多          


It is summerized that the coastal dune plantation in western Guangdong Province, since last three decades, is being played a desirable role on anti-typhoon and combatting the hazards of local dune movement and preventing seatide erosion, on protection of crop fields and on the increase of the economic result of farming produce and wood products. It is estimated that the income of wood products of the plantation belt occupies only 1/4, but the ecological benifit of the belt to protect the farmland and the environment...

It is summerized that the coastal dune plantation in western Guangdong Province, since last three decades, is being played a desirable role on anti-typhoon and combatting the hazards of local dune movement and preventing seatide erosion, on protection of crop fields and on the increase of the economic result of farming produce and wood products. It is estimated that the income of wood products of the plantation belt occupies only 1/4, but the ecological benifit of the belt to protect the farmland and the environment occupies three fourths of the total incomes. The author considers that, at present, the production of wood products should not be emphazised and successional inter-felling should be properly made to stop the disasteres of wind and sand to return to the region.

本文对我国南海岸线上的“绿色长城”——粤西沿海防护林带的生态与经济效益作了总结分析,调查研究表明:30年来,这一海防林带抵御台风和防止风沙危害效果显著;农作物及林木产品经济效益增加。总的看,林带林产品收益只占林业总收益的1/4,而保护农田与环境的生态收益却占林业总收益的3/4。故作者认为:目前,不应过份强调生产林产品,只能适当进行更新采伐,以防历史上的风沙灾害重演。

It has turned into Oasis since Mosowan desert was exploited in1958. The Oasis stretches into 60km in kuerbantonggute desert andhas produced a great deal of farm produce, animal products and woods.There are 100,000 population living and multiplying in this area.The natureal vegetation was destroyed to varying degrees, and 41 spe-cies of wild plant perished in the process of exploitation in and outof the Oasis. At the same time, the Manasi lake dried up. Our re-searches have shown that the impact of exploitation...

It has turned into Oasis since Mosowan desert was exploited in1958. The Oasis stretches into 60km in kuerbantonggute desert andhas produced a great deal of farm produce, animal products and woods.There are 100,000 population living and multiplying in this area.The natureal vegetation was destroyed to varying degrees, and 41 spe-cies of wild plant perished in the process of exploitation in and outof the Oasis. At the same time, the Manasi lake dried up. Our re-searches have shown that the impact of exploitation on this ecosystemlimits in these places which were directly affected by the residentsand the area near water.

莫索湾灌区自1958年进行垦耕以来,己形成以林网为骨骼的人工绿洲,纵深伸入库尔班通古特沙漠60km.它是构成石河子垦区的四大灌区之一。垦伐以来,提供了大量粮、棉、油、肉和瓜果、林木产品,为近10万人创造生息场所。开发过程对垦区及其近周自然植被造成不同程度破坏,亦加速作为流域集水区的玛纳斯湖的干涸,研究资料表明;垦耕过程对环境的影响限于人类直接作用的范围及与水体直接有关部分,对广大范围的荒漠植被无明显变化迹象,

There are serious disasters such as typhoon, stormwave, shifting sand, soil and water loss, etc. every year in the coast of China, for this it is thought that the principle of "suiting measures to local conditions and putting protection according to harm" shouid be obeyed, and that protected forest system be envisaged comprehensively. The coastal types of China,according to the composing matter of ground,could be generalized into the coasts of rock estuary, sand, mud-deposition and biogenic coast. The geomorphic...

There are serious disasters such as typhoon, stormwave, shifting sand, soil and water loss, etc. every year in the coast of China, for this it is thought that the principle of "suiting measures to local conditions and putting protection according to harm" shouid be obeyed, and that protected forest system be envisaged comprehensively. The coastal types of China,according to the composing matter of ground,could be generalized into the coasts of rock estuary, sand, mud-deposition and biogenic coast. The geomorphic diAision of coast in China, could be divided into thirteen district. The natural characters of the forests along the coasts of the region are the points as follows: one is the multiplicity of forest climate types, including twelve types; the second is that the forests are mainly composed of salt-tolerated species on the plain coast; the third is mangroves scattering in estuaries of south China;and the fourth is that the coastal forests are mainly for protection. The resource of the coastal forests are characterized with lower percentage of forest cover, being only 16.6%; lower timber storation,totaling for 30 million cubic meters, being equal to 19.07m~3; that pioneer tree species are predominated, and that the current area available to afforest is great,being one third of the land area for forest,but with difficulties to afforest. The main purpose of the envisaging projects of the protected forest system is to befend disasters and ameliorate ecological environment, but it also should adapt to the demand to develop economy completely of the coastal region in accordence with the policy of "opening to the outside world and stimulating economy".

中国海岸每年都有台风、暴潮、风沙和水土流失等严重的灾害,必须遵照“因地制宜,因害设防”的原则,对防护林体系做好综合规划。我国的海岸类型,按地面物质构成不同,可概括为基岩海岸、砂砾质海岸、淤泥质海岸和生物海岸;按海岸地貌时差异,可划分为13个海岸地貌区。这些地区的海岸森林的自然地理特点:一是森林气候类型复杂多样,可分为12种森林气候类型;二是平原海岸形成以耐盐树种为主的森林;三是南方海湾和沿岸有红树林广泛分布;四是海岸森林以防护林为主。现有海岸森林资源的特点:一是森林覆被率低,仅有16.6%;二是林木蓄积量极低,约3,000万立方米,平均每公顷19.07立方米;三是以强阳性先锋树种占绝对优势;四是宜林面积大,约占林业用地的1/3,但造林难度大。因此,防护林体系的规划,要适应抗御灾害和“对外开放,对内搞活”的要求。

 
<< 更多相关文摘    
图标索引 相关查询

 


 
CNKI小工具
在英文学术搜索中查有关林木的内容
在知识搜索中查有关林木的内容
在数字搜索中查有关林木的内容
在概念知识元中查有关林木的内容
在学术趋势中查有关林木的内容
 
 

CNKI主页设CNKI翻译助手为主页 | 收藏CNKI翻译助手 | 广告服务 | 英文学术搜索
版权图标  2008 CNKI-中国知网
京ICP证040431号 互联网出版许可证 新出网证(京)字008号
北京市公安局海淀分局 备案号:110 1081725
版权图标 2008中国知网(cnki) 中国学术期刊(光盘版)电子杂志社