查询词典 timber forest
- 与 timber forest 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Wood Group is a Hong Kong-fu-forestry development, timber processing, energy research forest, the forest and planting economic crops and real estate development, engineering Jian'an, Hotels, the sports industry as one of the large-scale comprehensive, entities of the company, in response to national Forestry reforms "to promote the development of large projects, and forestry development by leaps and bounds," the slogan of improving the ecological environment, ease the shortage of forest resources and long-term dependence on foreign imports of timber the status quo, with national "fast growing timber base," the implementation of construction projects, Companies to adopt "Intensive management, group-based management" of the international mode of operation, with advanced enterprise management and solid financial strength, Dongting Lake in Hunan rapidly creating a large area of timber, and strive to in the next five - 10 years to Lin board paddle integration of the industry chain development pattern.
香港福木集团是集林业开发、木材深加工、能源森林科研、林间地经济作物种植及房地产开发、建安工程、酒店宾馆业、体育产业为一体的大型综合化、实体化公司,为了响应国家林业改革&以大工程带动大发展,实现林业跨越式发展&的口号,改善生态环境,缓解我国森林资源紧缺及长期依赖国外进口木材的现状,配合国家&速生丰产用材基地&建设工程的实施,公司采取&集约化经营,集团化管理&的国际化运作模式,凭借先进的企业化管理和雄厚的资金实力,迅速在湖南洞庭湖区营造了大面积用材林,并力争在未来五——十年实现林板桨一体化的产业链发展格局。
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The storages of WSOC under 11 forest types were as follows: Pinus massoniana forest 2.43 ×10~6 t , robur mixed forest 1.57 ×10~6 t, shrubs 1.22×10~6 t, Cupressus funebris forest 0.46×10~6 t, Cunninghamia lanceolata forest 0.60×10~6 t, Citrus reticulate plantation 0.38×10~6 t, other soft broad leaved forest 0.22×10~6 t, the broad leaved and coniferous mixed forest 0.22×10~6 t, Neosinocalamus affinis 0.16×10~6 t, other hard broad leaved forest 0.20 ×10~6 t, temperate Pine forest 0.06×10~6 t.
本研究采用该方法测定的各主要森林类型下WSOC总贮量为6.53×10~6 t.11种森林植被WSOC库分别为:马尾松林2.43×10~6 t,栎类混交林1.57×10~6 t,灌木林1.22×10~6 t,柏木林0.46×10~6 t,杉木林0.60×10~6 t,柑桔林0.38×10~6 t,其它软阔林0.22×10~6 t,针阔混交林0.22×10~6 t,竹林0.16×10~6 t,其它硬阔林0.20×10~6 t,温性松林0.06×10~6t。
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Bieti lost its habitat continuously in recently decades associated with the extension of rangelands and farmlands, as well as firewood collection etc. The monkey live mainly in primary fir forest and the mixed conifer forest, to evaluate the status of the monkeys' habitat, we employed GIS and RS software to identify the habitat types with five Landsat TM/ETM+ satellite imagery in winter of 1986, 1992, 1997, 2001 and 2006 years respectively. The work resulted in: 1 the size of summer grazing lands, farmlands, and fir forest was 13 100 hm2, 6 400 hm2, and 30 500 hm2 in 2006 respectively; 2 during the past 20 years (1986-2006), the size of fir forest (including primary fir forest and the mixed conifer forest) decreased by 14.6%(5 200 hm2), summer grazing lands and farmlands increased by 47.2%(4 200 hm2) and 14.3%(800 hm2) respectively; and 3, during the past 20 years, the number of firry forest patches increased by 68.4%, the mean size of firry forest patches decreased by 49.3%(from 15.1 to7.6 hm2), the largest patch index of firry forest decreased 54.9%; the patch richness had no change, but the Shannon's diversity index and the Shannon's evenness index increased by 2.7% respectively.
为了评估该物种的栖息地现状和变化情况,我们通过野外调查工作,应用GIS和RS技术,分别解译了1986年、1992年、1997年、2001年和2006年的Landsat TM/ETM+冬季卫星影像,并对解译结果进行了计算和分析,得到了以下西藏种群栖息地的主要结果:1)现有暗针叶林(包括原始针叶林和针阔混交林)面积是30 500 hm2,夏季牧场面积是13 100 hm2,农田面积是6 400 hm2;2)在过去20年间(1986-2006年),暗针叶林面积减少了14.6%(5 200 hm2),夏季牧场面积增加了47.2%(4 200 hm2),农田面积增加了14.3%(800 hm2);3)在过去20年间,暗针叶林的斑块数量增加了68.4%,平均斑块面积下降了49.3%(从1986年的15.1 hm2下降到2006年的7.6 hm2),最大的斑块指数下降了54.9%;景观丰富度并没有变化,但Shannon多样性指数和Shannon均匀度指数分别增加了2.7%。
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At large scale, the result of comparing of optimization structure of forest type with the present structure of forest type illustrates that the present economical forest area is larger while the mixed forest is smaller. So decreasing economical forest area and increasing mixed forest area should be the main measurements to optimize spatial patterns. At small scale, the evaluation of the landscape inner structure index illustrates that the forest structure and coverage is smaller, which should be regulated and so the uneven-aged, multi-layered and mixed forest should be the object of the forest structure design.
大尺度上根据植被类型优化结构和现有植被类型结构数据的对比分析可知,现有经济林面积则过大,混交林面积较小,因此主要是减少经济林面积,改造针叶和阔叶纯林为混交林,从而增加混交林面积,以达到最优植被类型结构时的空间配置;在小尺度上通过对景观内部结构指数的计算分析可知,该区林分结构和郁闭度分指数值较小,应予以着力调整;由研究结果可知,异龄、多层次、混交的水源保护功能最好,因此稳定的林分结构设计目标就是尽量使林分形成异龄、多层次、混交林。
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Meanwhile,introduce the resource state of the huge Timber Mountain Gum × Flooded Gum timber of end too,combine gradually deficient wildwood timber resources in our country, so, huge Timber Mountain Gum × Flooded Gum timber physics mechanics nature includes the tail: Moisture content , density, swelling, obey the compression strength of the line, horizontal line compression strength , bending strength , resist curved elastic mould amount , resist intensity of cutting , carry on experimental study along line along line tensile strength and hardness, there is a very important and real meaning.
同时,也介绍了尾巨桉木材的资源状况,结合我国逐渐匮乏的天然林木材资源,因此,对尾巨桉木材物理力学性质包括:含水率、密度、湿胀性、顺纹抗压强度、横纹抗压强度、抗弯强度、抗弯弹性模量、顺纹抗剪强度、顺纹抗拉强度及硬度进行试验研究,将有着十分重要而实际的意义。
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Then the time-dependent resistance models of the timber beam and timber column are calculated in which the empirical formula in China is used for above- ground,exposed timber beam and column and the decay depth model for under-ground timber in Australia is adepted the timber embedding wall.
然后据此推导了彩钢活动房各类构件的腐朽抗力衰减模型,采用国内经验公式推导了抗弯腐朽木梁和地面上木柱的随机时变抗力模型;采用澳大利亚的地下木材的腐朽深度—时间模型,推导了初始抗力为正态分布的随机变量的墙内木柱的随机时变抗压承载力模型,并采用该模型对某历史结构的木梁进行了剩余寿命预测。
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Then the time-dependent resistance models of the timber beam and timber column are calculated in which the empirical formula in China is used for above- ground,exposed timber beam and column and the decay depth model for under-ground timber in Australia is adepted the timber embedding wall.
然后据此推导了各类构件的腐朽抗力衰减模型,采用国内经验公式推导了抗弯腐朽木梁和地面上木柱的随机时变抗力模型;采用澳大利亚的地下木材的腐朽深度—时间模型,推导了初始抗力为正态分布的随机变量的墙内木柱的随机时变抗压承载力模型,并采用该模型对某历史结构的木梁进行了剩余寿命预测。
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Based on the concept and the theory of forest park and forest tourism, development advantages of Hanzhong forest park were identified as follows: i through the past several years'development, forest tourism products were getting so abundant gradually that a fundamental scale was formed, with three national forest parks as well as three province parks founded; ii the idea of"tourism stimulation"was determined as the development strategy in the province since forest tourism played an increasingly significant part in the development of Hanzhong economy and society; iii geo-topographically, forest park in Hanzhong not only possess similar precipitous view of Qinling, but also equally splendid scenery of Bashan; iv hydrologically, the landscape had a lasting appeal as that in south China to some extend; v the forest located in the best site of the same latitude; vi with the opening of Xihan expressway, access to Hanzhong was upgraded prominently, which made the park a garden of Xi'an and a resort for many citizens.
本文从森林公园及森林旅游的概念及相关理论入手,提出了汉中森林公园和森林旅游的发展优势,即:1、通过多年发展,森林旅游产品日益丰富,初具规模,现有国家级3家,省级3家;2、&旅游活市&被汉中市委、市政府确定为发展战略,在汉中经济社会中的重要地位进一步提升;3、从地貌景观上看兼具秦岭的险峻与巴山的锦绣;4、水文上看,颇具江南山水韵味;5、森林植被处于同纬度最好的地区;6、西汉高速公路开通,汉中交通能级大幅提升,成为西安后花园和区域性休闲旅游地,给森林旅游带来无限生机。
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There are some questions such as forest fire model selection, forest fire model updating, verifying simulation accuracy and so on in traditional forest fire spreading system. Study purpose is to build an innovative forest fire spreading simulation system based on DDDAS in this paper. The system can increase precision of forest fire spreading simulation by model base, model selection, model updating and so on. It can provide a strategic decision for forest fire save and new technologies demonstration for other related field of research. The research encompasses several major topics:(1) This paper brings up the term of dynamic data driven forest fire spreading simulation system and supplies new research approach and thought for forest fire spreading simulation study. The system framework was brought.
本研究针对传统林火模拟过程中存在的模型手动选择难度大、模型修正数据获取效率低、模拟精度验证困难等问题,以DDDAS为林火蔓延模拟研究的技术范式,提出林火蔓延模拟全新的技术框架体系,解决模拟系统建设过程中的模型库建设与管理、模型适宜性选择、模型自适应修正、模拟过程实时验证等关键技术,建立林火扩散模拟和实际林火发展之间相互协作、共生的林火扩散动态模拟系统;提高林火蔓延模拟精度,将林火蔓延模拟真正应用到林火扑救指挥过程当中,在实践上为林火扑救指挥提供决策支持,在理论上为相关领域的空间扩散模拟研究提供新的思路和技术范式。
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The researches cover silviculture, vegetation management, tree physiology, ecophysiology, dendrochronology, forest ecology, forest fire ecology, forest soil biology, biotechnology, forest genetics, forest entomology and pathology, forest practices effects on biodiversity and sustainability and forest economics etc.
该杂志研究领域涉及造林学、植被管理、树木生理学、生态生理学、树木年代学、森林生态学、森林大火生态学、森林土壤生物学、生物技术、森林遗传学、森林昆虫学与病理学、森林实践对生物多样性与稳定性的影响以及森立经济学等。
- 相关中文对照歌词
- Timber
- The Timber Man
- In The Forest
- Timber, I'm Falling In Love
- Forest For The Trees
- Queen Of The Forest
- Timber
- Forest Fire
- Forest Full Of Needles
- Under The Radar
- 推荐网络例句
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For every one of my New Year resolutions, I have been a backslider for years.
说到我的新年决心,我每年都做
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With empathy and focus on a feeling level, we can all relate to the common ground of mutuality of emotions.
有了同情心和感觉上一级的重点,我们都可以涉及到相互的情感共同点。
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Capacity model of the minor mixed traffic flow under major stream with shifted negative exponential distribution on the unsignalized intersection is set up, and it is an extension of capacity model for mixed traffic flow.
建立了无信号交叉口主车流服从移位负指数分布下的支路多车型混合车流的通行能力模型,发展了无信号交叉口的混合车流通行能力理