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habitat protection
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  “habitat protection”译为未确定词的双语例句
     Waterfowls and Their Habitat Protection in China
     中国水禽及其栖息地的保护与管理
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     Research of Assessment of Eco-Environment Water Demand for Habitat Protection in Plain River Network Regions
     平原河网生态环境需水量计算研究
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     On the base of above research, the author predicts suitable number of Francois' Langur is about 80-90. At last the author gives some suggestions on Francois' Langur habitat protection of this region based on the analysis.
     在以上分析的基础上,预测黑叶猴的数量及变化,认为研究区在生境恢复良好的前提下黑叶猴的适宜数量为80一90只.
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     By investigating the features of the Shixi River system after treatment and main ecological environmental functions of service targets, we calculated various ecological and environmental water demands in the following three aspects, including function target hitting of water quality, habitat protection of hydrobios and water demand for landscape and recreation. Maximum critical water flux from the above calculations was defined as the ecological and environmental water demand of the Shixi River.
     针对整治后市西河河流系统的特点及主要生态环境服务功能目标,从水质功能达标、保护水生生物栖息地、景观娱乐用水三个角度,计算出市西河的各类生态环境水量,取其所需临界流量中最大的一个作为市西河河流生态环境水量。
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     A working system should be set up in future, in which the ecosystem-based management is the core, and runs through the other three action plans: the key species conservation and restoration, important habitat protection and restoration, and the pollution control.
     本文认为 ,应建立以生态系统为基础的管理机制 ,贯穿于关键种群的保护及恢复、重要生境的保护及修复和污染物控制等修复行动计划 ;
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     Discussing the Protection of Panthera tigris Habitat
     关于中国虎栖息地保护的探讨
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     Waterfowls and Their Habitat Protection in China
     中国水禽及其栖息地的保护与管理
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     HEALTH PROTECTION
     鼻子保健进行时
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     MYOCARDIAL PROTECTION
     心肌保护
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     Harmonious Habitat
     和谐人居
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  habitat protection
Based on these findings, we proposed conservation managements for this endangered species, including habitat protection along with the protection of their pollinators, artificial pollination as well as ex situ conservation.
      
LPBF accomplishes its mission through programs addressing water quality, habitat protection, geographic information science, public access, and education.
      
Allowing passive recreation is often essential to garner public support for habitat protection, restoration, and research.
      
Environmental pressure groups and habitat protection in the developing world: The case of Nigeria
      
This paper will analyze this debate, with reference to CITES, and suggest that the need for habitat protection may be the only way to close the divide between hardened ideological positions.
      
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Biological diversity can be studies at four levels of organization:genetic,species,ecosystem and landscape. Although habitat heterogeneity has received increased attention, especially in the agricultural landscape mosaic dominated by monoculture practices,the ecological importance of increasing landscape diversity has not been addressed in a comprehensive approach.Landscape diversity types and their ecological significance are discussed in this paper.Landscape diversity is the complexity and diversity of landscape...

Biological diversity can be studies at four levels of organization:genetic,species,ecosystem and landscape. Although habitat heterogeneity has received increased attention, especially in the agricultural landscape mosaic dominated by monoculture practices,the ecological importance of increasing landscape diversity has not been addressed in a comprehensive approach.Landscape diversity types and their ecological significance are discussed in this paper.Landscape diversity is the complexity and diversity of landscape elements in composition,structure and function, which refers not only to number of different patch types, patch size,and patch shape within a landscape mosaic, but also to the spatial arrangement of different patch types and the connectivity and connectedness of these patches. Therefore,landscape diversity is composed of patch diversity,landscape type diversity and pattern diversity.Patch diversity identifies patch number, patch size, patch shape, perimeter-area ratio,landscape fragmentation and patch edge.Landscape type diversity identifies distribution richness and proportions of patch types.Pattern diversity is a measure of the relative arrangement of patch type within landscape mosaic,which identifies spatial pattern of landscape type,connectivity, spatial linkage and neighborhood effects between the patches.Pattern diversity considers not only physical distance between the patches but also the landscape connectivity.Landscape diversity,including patch diversity,landscape type diversity and pattern diversity,may influence a variety such as ecological phenomena such as species distribution,movement and diversity,water runoff and erosion,nutrient cycling and energy flow rates,biomass and prductivity.Landscape diversity can be related to land use and landscape planning,wildlife habitat protection and biodiversity conservation.In optimizing biodiversity at the landscape level, resource managers and policy makers must not only conserve an array of patches, but also address how these patches can be best interconnected.

本文讨论了景观多样性的概念和类型划分,提出了景观多样性包括斑块多样性、类型多样性和格局多样性,论述了景观多样性的生态意义。斑块的数量、大小和斑块形状,景观类型的性质、多少和比例以及景观类型的空间分布、斑块与斑块之间的空间关联性和功能联系性是景观多样性研究考虑的主要要素。景观多样性对于物质迁移、能量交换、生产力水平、物种分布、扩散和动物觅食有重要影响。景观类型多样性与物种多样性的关系呈正态分布。景观多样性研究在土地利用规划、景观评价与设计、野生动植物保护和自然保护区建设等方面有着重要意义。

Genetic diversity in the endangered Adenophora lobophylla and its widespread congener, A potaninii was investigated based on 12 morphological characters and 10allozyme loci. We measured considerably high levels of genetic variability in both the endangered and the widespread species. The endangered A. lobophylla maintains comparable high level of genetic diversity to that of A. potaninii at the morphological characters surveyed. Similarly, the allozyme variation in A. lobphylla(P=0.60, A=1.87,H=0.180) is almost...

Genetic diversity in the endangered Adenophora lobophylla and its widespread congener, A potaninii was investigated based on 12 morphological characters and 10allozyme loci. We measured considerably high levels of genetic variability in both the endangered and the widespread species. The endangered A. lobophylla maintains comparable high level of genetic diversity to that of A. potaninii at the morphological characters surveyed. Similarly, the allozyme variation in A. lobphylla(P=0.60, A=1.87,H=0.180) is almost the same as that found in A potaninii (P=0.60, A=0.82, H=0.193).The present study indicates clearly that the endangered A lobophlylla is not genetically depauperate. Combined with other lines of evidence, we hypothesize that A. lobophylla has become endangered for ecological and stochastic reasons. Consequently,habitat protection is of particular importance for conserving this endangered species.

根据对12个形态性状的统计分析和10个基因位点的等位酶检测,探讨了濒危植物裂叶沙参及其近缘广布种泡沙参的遗传多样性水平。对3个裂叶沙参和6个泡沙参天然群体的遗传分析表明,两种沙参属植物均具有很高的遗传变异水平,这种变异性既体现在形态学水平上,也体现在酶位点水平上。在2个茎叶形状以及10个花果和种子形状上,濒危种裂叶沙参的变异性均与广布种相当;同样,根据7个酶系统10个等位酶位点的度量,裂叶沙参群体的平均变异水平(P=0.60,A=187,H=0.180)也与广布的泡沙参(P=0.60,A=1.82,H=0.193)相当。结果表明,濒危种裂叶沙参并未表现出遗传变异性的下降。结合生态学研究资料表明,导致裂叶沙参濒危的主要原因是生态学因子,故生境保护对裂叶沙参的生存和发展是至关重要的。

Species diversity of histerid beetles (Coleoptera: Histeridae ) was investigated in DonglingMountain, about 114 km west of Beijing, China. Using four kinds of collecting methods, we collected2224 specimens of Histeridae belonging to 6 genera and 17 species. Of the collected species, Saprinusniponicus, Onthophilus foveipennis, Margarinotus niponicus an d M. reichardti accounted for 88. 22% of to-tal collected specimens. These four species each over 10% of total specimens, could be categorized tocommonly occurring...

Species diversity of histerid beetles (Coleoptera: Histeridae ) was investigated in DonglingMountain, about 114 km west of Beijing, China. Using four kinds of collecting methods, we collected2224 specimens of Histeridae belonging to 6 genera and 17 species. Of the collected species, Saprinusniponicus, Onthophilus foveipennis, Margarinotus niponicus an d M. reichardti accounted for 88. 22% of to-tal collected specimens. These four species each over 10% of total specimens, could be categorized tocommonly occurring species. Twelve histerid species, namely 70. 19% of total specimens were capturedby meat bait, 8 species (23. 61% ) by pitfall traps, 8 species (4. 81% ) by grass bait, and 2 species(1. 39% ) by sifter. Onthophilusfoveipennis, a dominant species captured by pitfall traps, occurred usu-ally only in mixed broad-leaved forests in Xiaolongmen. Populations were high in May and September,and peaked in September. For histerid beetles from meat bait, we analyzed species diversity and similari-ty in eight plots representing three types of habitats in Xiaolongmen. Diversity index (H' ) and evennessindex (J) were higher in broad-leaved woods than in coniferous and mixed woods. Mixed woods were thehighest in number of species and of individuals and lowest in evenness. Coniferous woods showed a lowvalue of diversity and number of individuals. Analyzing the similarity coefficient (q) of histerid beetlecommunities, we found that similarity between pairs of the eight plots decreased as distance between theplots increased, independent of habitat types. We also compared species diversity between Xiaolongmen,a well-protected forest area, and Liyuanling, an area of farmlands abandoned five years ago and inter-spersed with small hills. We found higher values of diversity and evenness and lower values of individualnumber in Liyuanling. These results suggest that compositions and distributions of histerid beetles are in-fluenced by habitat protection, disturbance and geographic distances, and that species diversity could beconserved through increasing forest coverage and decreasing human disturbance in the Dongling Moun-tain.

本文研究了北京东灵山区阎甲科(Coleoptera:Histeridae)物种多样性,野外设样地调查共获标本 2224头,分属于6属 17种。Saprinus niponicus、Onthophilus foveipennis、Margarinotus niponicus和M.reichardti的个体数量均大于总数的10%,4种共占总个体数的88.22%,是本地区常见种。本研究采用4 种采集方法分别统计:肉诱法捕获的种类和数量最多,共12种占总数的70.19%;杯诱法和堆草诱法都捕到8种,分别占总数的23.61%和4.81%;网筛法采到的标本仅有2种占总数的1.39%。研究优势物种Onthophilus foveipennisr 的季节性变化发现,该种集中分布在小龙门林区的阔叶混交林内,个体数量在5月和9月呈现2个季节峰值,其中9月达到全年最高峰。对小龙门林区内肉诱捕获的阎甲类群的物种多样性分析表明,阔叶林中的阎甲多样性指数和均匀度指数较高,混交林的丰富度和个体数量较高,针叶林的多样性指数和个体数量较低,混交林的均匀度指数较低;而相似性分析表明,空间距离是决定小龙门林区内森林生境类型间腐生性阎甲群落相似性程...

本文研究了北京东灵山区阎甲科(Coleoptera:Histeridae)物种多样性,野外设样地调查共获标本 2224头,分属于6属 17种。Saprinus niponicus、Onthophilus foveipennis、Margarinotus niponicus和M.reichardti的个体数量均大于总数的10%,4种共占总个体数的88.22%,是本地区常见种。本研究采用4 种采集方法分别统计:肉诱法捕获的种类和数量最多,共12种占总数的70.19%;杯诱法和堆草诱法都捕到8种,分别占总数的23.61%和4.81%;网筛法采到的标本仅有2种占总数的1.39%。研究优势物种Onthophilus foveipennisr 的季节性变化发现,该种集中分布在小龙门林区的阔叶混交林内,个体数量在5月和9月呈现2个季节峰值,其中9月达到全年最高峰。对小龙门林区内肉诱捕获的阎甲类群的物种多样性分析表明,阔叶林中的阎甲多样性指数和均匀度指数较高,混交林的丰富度和个体数量较高,针叶林的多样性指数和个体数量较低,混交林的均匀度指数较低;而相似性分析表明,空间距离是决定小龙门林区内森林生境类型间腐生性阎甲群落相似性程度的因素,生境类型自身对相似性没有显著影响。梨园岭退耕区阎甲的物种多样性指数和均匀度指数高于小龙门林区,但物种个体平均数量低于小龙门林区。以上结果表明,东灵山

 
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