查询词典 lance-leaved
- 与 lance-leaved 相关的网络例句 [注:此内容来源于网络,仅供参考]
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With different scenarios sediment discharge followed by grassland>shrubland>broad-leaved woodland>orchard>coniferous woodland,among the scenarios grassland made sediment diacharge increase while the others made sediment discharge reduce.Along with the forest cover increased,the runoff and sediment discharge decreased;meanwhile the sediment discharge had the maximum rate of descent with the forest coverage rate between 40-70%.
不同情景的输沙量依次为草地>灌木林地>阔叶林地>园地>针叶林地,与原地类比较草地使模拟输沙量增加,其余的情景都使模拟输沙量减少;不同森林覆盖率情景下年均径流和输沙量都随森林覆盖率的增大呈下降趋势,森林覆盖率在40-70%之间的输沙量下降速率最大。
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According to species richness, Shnnon-Weiner indexand sterve of diversity-area, we study on the dynamics of species diversity of the secondary succesional communities of evergreen broaded-leaved forests on Jinyun mountain about ten years.
采用物种丰富度 S和物种多样性香农指数H、物种均匀度指数J以及多样性-面积曲线研究缙云山常绿阔叶林次生演替序列物种多近十年的变化。
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According to species richness, Shnnon-Weiner indexand sterve of diversity-area, we study on the dynamics of species diversity of the secondary succesional communities of evergreen broaded-leaved forests on Jinyun mountain about ten years.
采用物种丰富度S和物种多样性香农指数H、物种均匀度指数J以及多样性-面积曲线研究缙云山常绿阔叶林次生演替序列物种多样性近十年的变化。
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This thesis investigates the main landscape factors in residence and emphasized on planning landscape, investigating、 analyzing and summering their genenal level of virescence、 the variety of the plant、 the proportion between evergreen and broad-leaved trees、 the charaters of planting in different districts and on this basis, this thsis puts forward the basic principle, main guide line、 planning variety and design mode of plants and provides scientific foundation for the ecological development and construction of residence.
在此基础上,以作者工作所在地上海市为研究对象,选取绿化景观营造较为成功并具一定知名度的典型居住区,如高档居住区&海源别墅一期&、&西郊宾馆别墅四期&、&月湖山庄一期&,公寓居住区&上海知音&、&上海宏润花园&、&大华清水湾二期&等,对其主要的景观要素进行实地调研,并以植物景观为重点,对其总体绿化水平、应用的植物种类和配植手法、常绿和落叶树种的比例、分区种植特点进行调查、分析和总结,并据此提出了上海市不同居住区绿色景观环境建设的基本原则、主要指标、树种规划和植物配植模式,为居住区的生态化建设发展提供科学依据。
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Meso phanerophytes and micro phanerophytes are main composing plant of arbor synusia in the area.In synusia structure,except for the warm shrubs,frost flora all have arbor synusia,shrub synusia,herbage synusia and lichen synusia.The evergreen broad leaved meso phanerophytessynusia dominates the arbor layer .
在层片结构上,森林植物群落除暖性灌丛外,都具有乔木层层片、灌木层层片、草本层层片和苔藓地被层层片,常绿阔叶中高位芽层片为乔木层主要层片,并多构成群落的建群层片。
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Seedlings of Trapa pseudoincisan, a typical floating-leaved macrophyte accumulated more biomass after exposing 30 days in high CO,, and the biomass advantage was due to dry weight increase in root, stem, leaf and petiole.
高co:浓度中生长30天的菱幼苗总生物量明显增加,这是根、茎、叶和叶柄干重均增加的结果。
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The result pointed out that the vertical distribution of foliage for each species was different,however,generally speaking,the foliage in upper crown (0.3CL) for broad-leaved species in natural secondary forest took a small percentage,about 10%;in middle or middle lower of the crown(0.4CL to 0.8CL) the branches here took the majority percentage of whole foliage,almost 60%to 75%;but in lower crown(0.8CL),there was about 10%of whole foliage.(5)The interspecies competition of trees in secondary forest was expressed by Hegyi competitioin index,and the active competitor was calculated by the competition zone radius and the tree position,DBH,and distance in the zone,it was not all competitors in tranditional calculation.The study introduced crown area overlap index to describe the crown competition between subject tree and its competitors,furthermore,the crown area was classified into 5 levels with a method of equal crown projection area,therefor,the resulting crown area overlap index showed more realities of existing stand conditons.(6)Based on the theoretics of multiply divide,the spatial strcture optimizing model of secondary forest stand selective thinning was developed by diversity mingling,aggregation index,competition index and crown area overlap index,also designed 10 constraint conditions which were related to forestry meanings,the objective function was solved by the implicit enumeration method with LINGO 9.0,using 0-1 integer programming.
并且得出,每个树种在树冠内相对高度上的叶量的垂直分布是不同的,天然次生林阔叶树种的叶量在树冠的上部(0.3CL以下)所占比例很小,约占10%左右;在树冠的中部以及中下部(0.4CL~0.8CL),叶量所占比例最大,几乎集中了整个树冠60%~75%的叶量;而在树冠的下部(0.8CL以下),几乎占很少的叶量,大约10%左右。5、采用Hegyi竞争指数来表现次生林内林木的竞争关系,并且根据竞争圈的大小和林木在竞争圈内的分布位置、大小与距离来计算有效的竞争木,并不是传统意义上的全部竞争木;本研究提出用树冠叠加指数来表示林木与周围树木的树冠竞争情况,并采用等树冠投影面积法把树冠分为5级,这样计算的树冠叠加指数更加与现实林分相符。6、本研究基于乘除法的思想,用多样性混交度、聚集指数、竞争指数和树冠叠加指数构建了天然次生林择伐空间优化模型,设计了10个与林学意义相一致的约束条件,并采用0-1整数规划的思路,在LINGO9.0软件中使用了隐枚举法对目标函数求得最优解。7、以M702标准地为应用实例,具体计算出了每株采伐木,经过择伐后,目标函数值按模型设计的要求发生了极大的改变,增加了5倍多,说明了最后这个解的优良性,满足了设计的要求。
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He leaved out energy consuming of some speak in the pubic, and lose some chance for fame and gain, but felicitated, his literature character did not lost, his literature journey continuing, his literature space was widening.
他省去一些公开发言的能量消耗,因此也失去一些名利双收的机会,但庆幸的是,他的文学品格不曾流失,他的文学旅程依然在继续,他的文学&空间&在拓展,&空间随着在世而被揭示&,并得以通达空间本身。
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The coclusion will have important guidance to the application and the establishment of overwintering protection of broad-leaved evergreen plants.
本结论对指导常绿阔叶植物的应用,以及引种过程中越冬保护措施的制定都有着重要的指导作用。
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Cultivate the main broad-leaved species are: Sapporo umbrella maple, almond, peach hearts, red beans Hainan, the Hainan Putao, Yau Ma Fu, Terminalia catappa pumilum; palm trees are: the elderly Kwai , A Li Hai date, Silver Date Palm, Queen's Kwai, bottle palm, coconut King, king coconut, betel nut false; shape shrubs are: luteolin Lam, Le cuckoo, Ziwei pumilum, Hongguo, the red car, Zhu Geun category The company is' production and research 'base, is currently working with South China Agricultural University College of Forest Watch breeding experts to develop eucalyptus, this production base for chemical and Zhanjiang Normal College teachers and students of the College of Life Sciences internship places.
主要培植的阔叶树种有:幌伞枫,扁桃,桃花心,海南红豆,海南蒲桃,马孚油,细叶榄仁;棕榈科树种有:老人葵,加拿利海枣,银海枣,皇后葵,酒瓶椰子,霸王椰子,大王椰子,假槟榔;造型灌木有:木犀榄,簕杜鹃,细叶紫薇,红果,红车,朱槿类。本公司是'产学研'基地,目前正与华南农业大学林学院育种专家合作开发观赏桉树,本生产基地为湛江师范学院化学与生命科学学院师生的实习场所。
- 相关中文对照歌词
- Je Lance Un Appel
- Je T'appelle
- Jeremy Fraser
- Clue / 50
- The Robot Vs The Heroin Battle Of Vietnam
- Chega De Me Enganar
- Chaque Jour Sans Fièvre
- Zen
- Eu Vou Ficar
- Mon Son
- 推荐网络例句
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Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.
目前大多数的研究表现为在变形后的受控Petri网基础上,利用各种方法求得各种逻辑型、结构型控制器,解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。
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On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.
一方面,有讨论,工程理事会和联盟关于延长工作时间短至9月底。
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What is the topic sentence of this article?
这篇文章中心的句子是那一句?