查询词典 fog forest
- 与 fog 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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This course is an attempt to give the students the basic idea and method of forest management in order to prepare the management plan; Place of forest management in forestry; Content of forest management; Guide principles of forest management; Sustained working; Silvicultural system; Forest yield; Increment; Volume increment; Quality increment; Price increment; Total price increment; Forest maturity; Indicating percent; Productive stage; Physical rotation; Technical rotation; Rotation of maximum volume yield; Highest forest rent rotation; Financial rotation; Cutting cycle of selection system; Normal forest; Normal distribution of age classes; Normal arrangement of stands; Normal increment; Normal growing stock; Normal yield; Improvement of actual forest; Reserve forest; Reserve fund; Planning and plan of forest management; Forest regulation; Area allotment; Volume allotting method; Volume frame work; Area-volume combined frame work; Growing stock; Utilization percent method; Difference method; Pure age-class; Growth method; Control method; Forest subdivision; Forest surveying; Forest survey; Certainty of future policy of forest; Selection of species; Decision of silvicultural system; Decision of rotation; Regulation of future yield; Preparation of management plan; Working the plan; Control and revision of management
本课程之目的为使学生了解森林经营之基本观念及方法,以期编订经营计划,课程包括森林经营学在林学上之地位、森林经营学之内容、森林经营之指导原则、保续作业、森林作业法、森林收获、生长、材积生长、形质生长、腾贵生长、总价格生长、林木成熟期、指率、生产期、自然轮伐期、工艺轮伐期、材积收获最多轮伐期、森林纯益最大之轮伐期、财政轮伐期、择伐林之回归期、法正林、法正龄级分配、法正林分排列、法正生长、法正蓄积、法正伐采额、现时林之改良、预备林、预备金、森林经营上之规划及计划、收获预定、面积配分法、材积配分法、材积平分法、折衷平分法、蓄积法、利用率法、较差法、纯粹龄级法、生长量法、稽核法、森林区划、森林测量、森林调查、将来森林经营方针之确定、树种之选定、作业法之决定、轮伐期之判定、将来收获之预定、经营管理计划之编订、计划之执行、经营管理计划之稽核与检订。
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The theory of "harmonious forest farm" reckons that:①State-owned forest farm is an exoteric complex-system, which is the coupling of forest ecosystem, forestry economic system, and social system in forest farm;②Harmonious forest farm is the farm constructed under the background of socialist market economy and building a moderately prosperous society;③The features of "harmonious forest farm" are the development of production, the prosperity of life and good ecological environment;This farm is a modern state-owned forest farm, the symbols of which are the high value of itself, the good benefits of wokers and the abundance of forest resources;④The key of it is the harmony of farm and society, farm and environment as well as farmitself——that is to say,"harmonious forest farm" should aim to meet the needs of the country and thesociety; forest management should put maintaining and enhancing biodiversity, forest ecosystem health and integrity to the center; inside the forest farm, there should form the mechanism of balancing interests and learning mechanism for sharing at the core of the executive feedback mechanism of forest management, advancing the workers to form a comradely mutual aid relationship.
其要点是:①国有林场是开放的复杂系统,它由森林生态系统、林业经济系统、林场社会系统耦合而成;②和谐林场是在社会主义市场经济和全面建设小康社会背景下建设的林场;③和谐林场是以生产发展、生活富裕、生态良好为特征,以国有林场价值高、林场职工福利好、森林资源丰富为标志的现代国有林场;④和谐林场的关键是要求林场与社会、林场与环境以及林场自身达到和谐,即"和谐林场"必须以满足国家与社会的需求为目的,在森林资源经营上,始终以维持与提高生物多样性、森林生态系统的健康与完整为中心,在林场内部形成以森林经营方案执行反馈机制为核心的利益均衡机制和学习共享机制,促进林场干部职工形成同志式互助关系。
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The auther studied the community ecology of soil pro-tozoa by chosing the five representative forest types,korean-pine-broad-leaved forest,broad-leaved-korean-pine forest,korean-pine forest,broad-leaved forest andsylvesfriformis-pine forest in the coniferous-broadleaved mixed forest zone on northern slope of ChangbaiMountain during the summer of 1985-1987 in order tounderstand the composition of species and number of soilprotozoa in different forest types of the coniferous-broad leaved mixed forest zone;species dibersity indexand evenness index of soil protozoa in community;pro-tozoan density and biomass;noteworthiness of the re-gularity of protozoan number variance;distributionpattern in community;horizontal distribution;relation-ship of vertical distribution and soil micro-environ-ment etc.,and compare the similarities and differencesof these five forest types according to feature ofsoil protozoan community,and finally summarize thetheoretical regularity,the index or the evidonceof the best forest-type structure.
本文工作的目的是通过对不同林型下土壤原生动物的群落组成,群落结构特征的研究,以及对凋落物分解过程中原生动物种类和数量的初步调查,来探索土壤原生动物在指示环境条件和林型结构特征方面的可能性作用。
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Beijing environmental problems hold severe, and atmospheric and water pollute, soil and water loss, hot island and yawp are leading problems,and take on territorial characteristic. Based on research on relativity between urban forest and these environmental problems, urban forest can effective improve environmental quality in Beijing. And for the aim of improve environmental quality, Beijing forest overlay should attain 35% at least in citywide range, and local-areas being severe environmental problem should be provided with higher forest overlay.5. Through the study on urban forest needed capacity, Beijing's forest coverage is up to par in citywide range, but montanic forest coverage, plain covered with trees and average forest area are lacking, and CO2 and O2 balance is incapable;form the point of heat and balance CO2 and O2 balance,urban forest the city zone and suburb is lack. There is urban forest developmental potential space,but the city zone and suburb area need be compensated form urban forest in circumjacent region.6. On the based of the above results and ecological network system, the author drived whole region into city area, plain and mountain area are needed at the point of planning thoughts of running-through forests and water .
根据城市森林与北京市主要环境问题的相关性分析,城市森林在改善这些环境问题中具有重要的作用,为有效改善这些环境问题,整个北京市域范围内森林覆盖率至少达到35%,并且分布比较均匀,环境问题严重的局部区域需要不同程度增加森林覆盖率。5、通过对北京市城市森林需求量研究发现,虽然在市域范围内北京森林覆盖率达到了国家标准,但是山区森林覆盖率、平原林木覆盖率、城区人均森林面积不足;从区域热平衡和碳氧平衡角度分析,城区和郊区不能满足本区域的城市森林需求量,虽然北京市城市森林具有一定的发展潜力,整体上基本可以满足城市需要,但是这些区域需要依靠周边区域城市森林的补偿。6、根据以上的研究结果,以中国森林生态网络体系建设的点、线、面布局理念为指导,以&林网化——水网化&作为优化理念,将北京市整个市域划分为城区近郊区及其辐射区域,平原区和山区三大区域,依据三大区域特点进行城市森林布局优化。
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These changes include both positive changes from nonforest to forest and negative changes from forest to nonforest. The top ten changes by area were as follows: plantation to cut area, forest toopen forest, forestto cut area,non forest to forest, barren land to forest,plantation to plowland,forest tobarren land,plantation to barren land,nonforest landto forest and open forest to forest.
森林资源变化依次是经济林变成采伐迹地、林分转变为疏林地、林分转变为采伐迹地、非林地向林地转变、宜林地转变为林分、经济林转变为耕地、林分转变为宜林地、经济林转变为宜林地、未成林地转变为林分、疏林地转变为林分。
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When big, moderate rain and rainstorm, the Y value size order is always the masson pine pinus elliottii mixed forest<the wetland pinery<the wetland pinery<the locust tree forest<the locust tree pinus elliottii mixed forest<the thin forest, to the soil protection effect, the conifer forest is better than broad leaved forest. For annual rainfall erosion, the Y value ordered: Locust tree forest<wetland pinery<locust tree pinus elliottii mixed forest<wetland pinery<masson pine pinus elliottii mixed forest<thin forest.
大、中雨和暴雨时,Y值的大小顺序都是马尾松湿地松混交林<湿地松林<湿地松林<刺槐林<刺槐湿地松混交林<疏林,对土壤保护效果针叶林优于阔叶林;对于年降雨侵蚀,Y值的大小顺序是:刺槐林<湿地松林<刺槐湿地松混交林<湿地松林<马尾松湿地松混交林<疏林。
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Fog creeping into the cabooses of collier-brigs; fog lying out on the yards, and hovering in the rigging of great ships; fog drooping on the gunwales of barges and small boats. Fog in the eyes and throats of ancient Greenwich pensioners, wheezing by the firesides of their wards; fog in the stem and bowl of the afternoon pipe of the wrathful skipper, down in his close cabin; fog cruelly pinching the toes and fingers of this shivering little prentice boy on deck.
雾悄悄漂进双桅运煤船的厨房;雾笼罩着船厂,盘旋在巨轮的索具上;雾垂降在驳船和小船的船舷上缘;雾漂进古格林威治跟班的眼睛和喉咙,在他们护卫们的炉边窜动着;雾挂在愤怒船长午后烟斗的烟干和烟锅上,漂进他的舱室;雾在甲板上冻得浑身发抖的小男学徒脚趾和手趾缝间肆虐地啃咬着。
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The surface southeast wind is a condition for the generation of advection fog, but it contributes to the disappearance of radiation fog. The inversion in the radiation fog is thick and strong ,but it is weaker or no inversion in the advection fog. The evolution of stratification from the occurrence to the destruction in the radiation fog is from stable to unstable, while the advection fog from unstable to stable.
底层东南风是平流雾生成的条件,却对应于辐射雾的消亡;辐射雾逆温厚而强,平流雾则为弱的逆温或无逆温;辐射雾生消演变对应于大气层结由稳定发展为不稳定,平流雾则对应于由不稳定趋于稳定。
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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%。
- 相关中文对照歌词
- Labyrinth
- In The Forest
- Labyrinth
- Jump Into The Fog
- Forest For The Trees
- Just Drums
- Queen Of The Forest
- Marching Through The Fog
- Forest Fire
- Forest Full Of Needles
- 推荐网络例句
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Mr. Putin said there were signs of genocide against the Ossetian people.
普京说,有迹象表明对南奥塞梯人进行了种族清洗。
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What I'm trying to say, Tristan is...
特瑞斯坦。我想说的是。
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Petersen largely pays attention to nanotech, but she also draws connections between technology and how it's used.
Petersen的注意力主要放在纳米技术上,不过她也研究技术与如何使用之间的联系。