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
   logged forest 的翻译结果: 查询用时:0.183秒
图标索引 在分类学科中查询
所有学科
更多类别查询

图标索引 历史查询
 

logged forest
相关语句
  “logged forest”译为未确定词的双语例句
     They showed patchy distributions in the selectively logged forest.
     它们补丁状分布在择伐过的林分中。
短句来源
  相似匹配句对
     forest .
     林。
短句来源
     They showed patchy distributions in the selectively logged forest.
     它们补丁状分布在择伐过的林分中。
短句来源
     The Forest Sports
     森林里的运动会
短句来源
     Study on the Structure of Spruce-Fir Mixed Stands in the Over-logged Forest of Changbai Mountains
     长白山过伐林区云冷杉针阔混交林林分结构的研究
短句来源
查询“logged forest”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。
  logged forest
This effect, which is also strongest in the selectively logged forest, leads to a much higher density of canopy dwelling arthropods during the dry season.
      
Seasonal change increased in the primary forest, and shows most significant changes of athropod abundance between dry and wet season in the selectively logged forest which also had the highest heterogeneity in forest structures.
      
Foliar phosphorus content and mycorrhizal infection of dipterocarp seedlings growing in a 61-year-old forest plantation (site A) and a selectively logged forest (site B) were determined.
      
Often these fires are associated with extended drought and widespread use of fire to clear previously logged forest and other degraded land in preparation for oil palm, rubber, or pulpwood plantations.
      
Multivariate analysis separated the beetle fauna according to land use, and suggested that only the logged forest maintains a similar species assemblage to primary forest.
      
更多          


It is useful for making management strategies and protecting biodiversity to study the effects of stand attributes on species diversity, especially controllable factors by forest management. Using canonical correlation analysis, this paper aims to find major stand variables affecting species diversity in shrub layer in 3 types of over logged forests in northeastern China, which include soil water content, tree species diversity and tree stems per hectare. Of these factors, soil water content and...

It is useful for making management strategies and protecting biodiversity to study the effects of stand attributes on species diversity, especially controllable factors by forest management. Using canonical correlation analysis, this paper aims to find major stand variables affecting species diversity in shrub layer in 3 types of over logged forests in northeastern China, which include soil water content, tree species diversity and tree stems per hectare. Of these factors, soil water content and tree species diversity have positive correlationship with species diversity in shrub layer, but tree stems per hectare has negative. 68.32% of the variance of species diversity in shrub layer was explained by the first canonical variable of stand variables, but the rest was not interpreted yet. These conclusions can be used for the decision of sustainable forest management.Tab 8, Ref 12

研究林分特征尤其是经营上可以控制的因子对生物多样性的影响 ,将有助于制定合理的经营措施来维持和保护生物多样性 .本文作者以我国东北过伐林区 3种典型天然林类型为对象 ,采用典型相关分析方法 ,研究影响灌木层物种多样性的主要因子 .结果表明 :影响灌木层物种多样性的主要因子包括土壤含水率、树种多样性和林分密度 ;灌木层多样性组的变异被林分组第一典型变量解释的比例为 6 8.32 % ,仍有 31.6 8%的变异不能得到解释 .表 8参 12

Four forest types, which include mixed coniferous and broad-leaved forests, mixed broad-leaved forests, Mongolian oak forests and larch plantations, were investigated in Wangqing forestry bureau, Jilin Province, an over-logged forest area in Northeastern China. Plant species diversity was studied by Detrended Correspondence Aanalysis(DCA), community intrinsic diversity ordering and variance analysis. Results showed that species diversity index of mixed coniferous and broad-leaved forests was the...

Four forest types, which include mixed coniferous and broad-leaved forests, mixed broad-leaved forests, Mongolian oak forests and larch plantations, were investigated in Wangqing forestry bureau, Jilin Province, an over-logged forest area in Northeastern China. Plant species diversity was studied by Detrended Correspondence Aanalysis(DCA), community intrinsic diversity ordering and variance analysis. Results showed that species diversity index of mixed coniferous and broad-leaved forests was the highest, that of mixed broad-leaved forests and Larix plantations the next, and that of Mongolian oak forests the smallest. The paper put forward silvicultural practice suggestions for maintaining and conserving diversity of these forests.

运用无偏对应分析 (DCA)、群落本质多样性排序和方差分析的方法 ,研究了东北过伐林区吉林省汪清林业局境内的四种森林类型针阔混交林、阔叶混交林、柞木林和长白落叶松人工林的林分层次的植物物种多样性间的差异。从 4种类型下层植被多样性指数的比较结果来看 ,针阔混交林最高 ,阔叶混交林和落叶松人工林次之 ,柞木林最低。最后提出了部分经营建议。

The species richness of nonvolant mammals in different habitats at six sites of Shennongjia Nature Reserve was investigated during 1999~2001. The habitats were classed into eight types: primary forest, selectively logged forest (primary forest with deadwood removal), secondary forest, shrub forest, grassland, rivers and streams, crop field, and residential areas. The small nonvolant mammals were investigated using steel removal traps. Large nonvolant mammals were studied through data...

The species richness of nonvolant mammals in different habitats at six sites of Shennongjia Nature Reserve was investigated during 1999~2001. The habitats were classed into eight types: primary forest, selectively logged forest (primary forest with deadwood removal), secondary forest, shrub forest, grassland, rivers and streams, crop field, and residential areas. The small nonvolant mammals were investigated using steel removal traps. Large nonvolant mammals were studied through data on skin trade, line transects and survey of mammal trails. The vegetation of forests was sampled in plots of 10 m×10 m. The results indicate that there are 59 species of nonvolant mammals in Shennongjia Nature Reserve(not including the introduced species Cervus nippon ). At the same elevation, the primary forest usually has higher species richness than selectively logged forest and secondary forest, suggesting that logging has greatly reduced species richness. By comparing species richness at different elevations in the same habitat, it is found that the highest species richness occurs at the middle elevational zones (800~1700 m). In primary forest and secondary forest, species richness is highest at Dongxi at 1700 m elevation. In the selectively logged forest, species richness peaks at Jiuchong at 800 m elevation. Species composition at the six sites can be classed into two groups by cluster analysis: a higher elevational group (above 2100 m) and a middle low elevational group (below 1700 m). The vertical distribution of species composition is matched with that of vegetation. The species richness of the mammals at different sites is correlated with average tree species richness in a unit area (100 m 2), number of habitat types and elevation. There is a correlation among average tree species richness, number of habitat types and elevation, suggesting that elevation has a very important effect on average tree species richness and the number of habitat types. Two conservation implications were formulated from the results. First, emigrant engineering and forest recovery for the reserve should begin at Jiuchong, which has the highest species richness, then be carried out at Dongxi and Xiagu. Second, the zone between the two fragments of the reserve should be set aside as a protected corridor to improve the flow of individuals and genes between the fragments.

于 1999~ 2 0 0 1年调查了神农架自然保护区 6个地点不同栖息地的非飞行哺乳动物的物种丰富度。栖息地分为 8类 :原始林、择伐林 (采伐枯立木 )、次生林、灌木林、草地、常年性河流水溪、农田和人居住区。小型非飞行哺乳动物调查用捕鼠夹 ;大型非飞行哺乳动物调查主要根据皮张收购资料以及样线法和痕迹法 ;用 10m× 10m的样方调查林地树种丰富度。调查发现 ,神农架自然保护区有非飞行哺乳动物 5 9种 [不包括引进种梅花鹿 (Cervusnippon) ]。在同一海拔高度 ,原始林通常比择伐林和次生林的物种丰富度高 ,说明采伐严重降低了物种丰富度。对比同一栖息地不同海拔高度的物种丰富度 ,我们发现 ,在中海拔地段 (80 0~ 170 0m)物种丰富度最高 :如在原始林和次生林 ,海拔 170 0m的东溪物种丰富度最高 ;在择伐林 ,海拔 80 0m的九冲物种丰富度最高。聚类分析显示 ,6个地点的哺乳动物物种组成可以分为两组 :高海拔组 (2 10 0m以上 )和中低海拔组 (170 0m以下 )。各地点的哺乳动物物种组成与植被的垂直分布是一致的。各地点的物种丰富度与单位面积 (10 0m2 )树种平均...

于 1999~ 2 0 0 1年调查了神农架自然保护区 6个地点不同栖息地的非飞行哺乳动物的物种丰富度。栖息地分为 8类 :原始林、择伐林 (采伐枯立木 )、次生林、灌木林、草地、常年性河流水溪、农田和人居住区。小型非飞行哺乳动物调查用捕鼠夹 ;大型非飞行哺乳动物调查主要根据皮张收购资料以及样线法和痕迹法 ;用 10m× 10m的样方调查林地树种丰富度。调查发现 ,神农架自然保护区有非飞行哺乳动物 5 9种 [不包括引进种梅花鹿 (Cervusnippon) ]。在同一海拔高度 ,原始林通常比择伐林和次生林的物种丰富度高 ,说明采伐严重降低了物种丰富度。对比同一栖息地不同海拔高度的物种丰富度 ,我们发现 ,在中海拔地段 (80 0~ 170 0m)物种丰富度最高 :如在原始林和次生林 ,海拔 170 0m的东溪物种丰富度最高 ;在择伐林 ,海拔 80 0m的九冲物种丰富度最高。聚类分析显示 ,6个地点的哺乳动物物种组成可以分为两组 :高海拔组 (2 10 0m以上 )和中低海拔组 (170 0m以下 )。各地点的哺乳动物物种组成与植被的垂直分布是一致的。各地点的物种丰富度与单位面积 (10 0m2 )树种平均丰富度、栖息地类型数和海拔高度相关。 3个环境变量间也是相关的 :海拔高度对单位面积树种平均丰富度和栖息地类型数有重要影响。根据研究结果提出两

 
<< 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logged forest的内容
在知识搜索中查有关logged forest的内容
在数字搜索中查有关logged forest的内容
在概念知识元中查有关logged forest的内容
在学术趋势中查有关logged forest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