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forestry university
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  林业大学
     General Contents of Journal of Northeast Forestry University in 2006(Vol.34 No.1~6)
     《东北林业大学学报》2006年总目次表(第34卷第1~6期)
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     General Contents of Journal of Northeast Forestry University in 2005(Vol.33 No.1 ~6)
     《东北林业大学学报》2005年总目次表(第33卷第1~6期)
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     Study on Publications of Academic Papers from 1991 to 2000 in Beijing Forestry University
     北京林业大学1991~2000年学术论文的产出研究分析
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     Education Development Seminar 2006 Held by the School of Landscape Architecture, Beijing Forestry University
     2006年北京林业大学园林学院教育发展研讨会
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     Strengthen the Link for Practical Teaching and Improve the Training of Qualified Talents——Teaching Reforms and Practice in Biological Science Base of Beijing Forestry University
     加强实践教学环节 提高人才培养质量——北京林业大学生物学基地教学改革与实践
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  林业高等院校
     The Research on Furniture Design Education in Forestry University of China
     中国林业高等院校家具设计专业教育的研究
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  “forestry university”译为未确定词的双语例句
     T78 you 2155 is a new three-line hybrid combination with good quality,high yield and resistance to diseases,which was bred through crossbreeding between sterile line T78A as female parent bred by Fujian Agriculture and Forestry University and Minghui 2155 as male parent.
     T 78优2155是福建省三明市以福建农林大学育成的优质不育系T 78A为母本,明恢2155为父本育成的优质高产抗病三系杂交稻新组合。
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     JOURNAL OF NORTHWEST FORESTRY UNIVERSITY Total COntents (2006)
     《西北林学院学报》2006年总目次
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     Study of Forest Insect Fauna in Experimental Forest Farm of Jliin Forestry University
     吉林林学院实验林场森林昆虫区系研究
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     Selection of Teachers’ Works from Beijing Forestry University
     北京林业大学教师作品选
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     New record of species: Parlatoria ghanii Hall & William, 1962.All the type specimens of new species are deposited in the Entomological Museum, Northwest Agriculture & Forestry University, Yangling, Shaanxi, China and Shanghai Institute of Plant Physiology and Ecology, Chinese Academy of Sciences respectively.
     中国新记录种:加氏片盾蚧Parlatoria ghanii Hall & William, 1962.所有新种模式标本及研究所用标本分别保存在西北农林科技大学昆虫博物馆、中国科学院上海植物生理生态研究所。
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  forestry university
Abstracts - From the journal of beijing forestry university (in Chinese)
      
roseus seedlings in Key Laboratory of Forest Plant Ecology, Northeast Forestry University, Heilongiang, China.
      
Experiments of ultrasonic-associated extraction and hot water extraction of water soluble polysaccharides from defatted Korean pine (Pinus koraiensis) were conducted in Northeast Forestry University, Harbin, China.
      
The biodiversity was studied in 26 communities with different structures tructures in Maoershan National Park and Liangshui Natural Reserve of Northeast Forestry University in Heilongjiang Province, China.
      
The intercropping system of tree with soybean in juvenile plantations, as a short-term practice, was applied at Lao Shan Experimental Station in Mao'er Shan Forest of Northeast Forestry University, Harbin, China.
      
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The main teaching building of Northeast Forestry University was built in 1956 and came into use. By our observation, so far,the building is working well. The main building has been bnilt for 30 years, nevertheless, its dynamic property parameters——natural frequency,normal modes,damping are unknown yet.We carried out a study on its dynamic property parameter with a surrounding random excitation;here, its (1st)natural frequency,(1st) normal modes and damping ratio are given in this paper. We find its account...

The main teaching building of Northeast Forestry University was built in 1956 and came into use. By our observation, so far,the building is working well. The main building has been bnilt for 30 years, nevertheless, its dynamic property parameters——natural frequency,normal modes,damping are unknown yet.We carried out a study on its dynamic property parameter with a surrounding random excitation;here, its (1st)natural frequency,(1st) normal modes and damping ratio are given in this paper. We find its account as a reference in the maintenance and use of the main building preventing it from the seisin damage and its life-span estimation.

东北林业大学教学主楼于1956年建成使用。经观察,到目前为止,教学楼工作状态良好。但是,自主楼建成至今已有三十年,它的动力特性参数——固有频率、振型、阻尼等参数还不知道。 本文通过环境随机激振,对教学主楼的动力特性参数进行了研究,给出了主楼南北弯曲振动的一阶固有频率、一阶主振型及阻尼比,这对于主楼的使用维修,防止地震危害以及估计主楼的寿命将具有参考价值。

I. INTRODUCTIONThe Northeast Forestry University invited Chairman of "cone and seed insects working party", IUFRO, Dr. Alain Roques from INRA,France,here in China make some survey of cone and seed insects in conifer forests in Northeast Clina in cooperation with Prof. Fang.The survey has included the following areas: Wuying Natural Reserve,seed forest of Fenglin Forest Bureau,Liangshui Natural Reserve of Northeast Forestry University in Xiaoxingan Mountains;artificial and natural seed forests of...

I. INTRODUCTIONThe Northeast Forestry University invited Chairman of "cone and seed insects working party", IUFRO, Dr. Alain Roques from INRA,France,here in China make some survey of cone and seed insects in conifer forests in Northeast Clina in cooperation with Prof. Fang.The survey has included the following areas: Wuying Natural Reserve,seed forest of Fenglin Forest Bureau,Liangshui Natural Reserve of Northeast Forestry University in Xiaoxingan Mountains;artificial and natural seed forests of larch in Wurjihan and Kuduer in Daxingan Mountains,and also Botanical Garden of Heilongjiang Province and Harbin Forest Farm of Northeast Forestry University.The tree species surveyed are: Larix gmelinii, Pinus koraiensis, P. sylvestris var.mongolica,P.thumbergii,Picea koraiensis, P.jezoensis and Abies nephroletis.Larvae of several species of Tortricidae, Pyralidae, Cecidomyiidae,Eurytoma etc. were found in he damaged cones and damaged cones of Lasicmma.Some Specimens can only be ideutified to genus ar family.The result of the survey will be published is English and Chinese. Ⅱ. METHOD OF SURVEYWe examined cone-bearing trees of several conifer species, and collected ten cones from every sample tree,then cut the cones and examine the damage. Ten sample trees are chosen in every stands and the species, height of trees,amount of cones and the position of collected cones were recorded. Each damage was described and the species and amount of insects were recorded in order to be computer-analyzed.Ⅲ.RESULT OF THE SURVEYWe have got the percentage of damage of cone insects in larch, and the list of cone and seed insects in other conifer species. In these species,it was impossible to collect enough cones, so the percentage of cone damage were not calculated. The list of the pest insect species in regard to tree species is as follows.In cone of Pinus kcraiensis was found:larvae of Dioryctria abietella (Denis and Schifferm(?)ller), larvae of Cecidomyiidae, adult of Fitycgenes chalcographus, larvae of Lonchaidae.In cone of Pinus sylvestris var. mongolica was found:damage of Dioryctria sp.In cone of Pinus thunbergii was found:larvae of Cecidomyiidae.In cone of Picea jezoensis was found: larvae of Cydia strobilella,larvae of Megastigmus sp.In cone Picea koraiensis was found: larvae of Dioryetria abietella(Denis and Schifferm(?)ller), larvae of Cecidomyiidae, damage of Lcsicmma anthracinum (Czerny), larvae of Cydia strobilella (L.), larvae of Megastigmns sp., larvae of Lonchaidae.In cone of Abies nephrolepis was found: damage of Lasiomma abietis (Huckctt), larvae of Dioryeria abietella (Denis and Schifferm(?)ller),larvae of Gecidomyiidae (2 species), larvae of Earbara spo (my-be B.herrichiana Obr. or B. fulgens V.I. Kuznetsov), larvae of Lonchaidae.In Cone of Larix gmelinii was found: 1. damage of Lasiomma spp. and dt; 2. L. laricicola (Karl);3.larvae of Retinia perangustana Snell;4. larvae of Dioryctria abietella (Denis and Schifferm(?)ller); 5. larvae of Eurytcma laricis Yano;6. larvae of Cecidomyiidae(* small amount) and the percentage of damage of larch cone (%) by these insects (see Table 1.) From the Table 1. we can know that, the damage of larch cone pests is grave. Among the pests, cone magot is in the first place, the cone damaged rate can be up to 42--95% in large area larch stand. The second is larch cone moth, the cone damaged rate is 6--20%. The third is pine shoot borer, and the cone damaged rate is 4--8%.The last one is gall midge and the cone damaged rate can be up to 17%, because its larva is small, its damage is not grave, it can make seeds rotten. The species discussed above usually take place to accompany the other or to follow one after another, result in the damage degree more serious.Ⅳ. PROBLEMS DISCUSSION1. We recorded six species of cone magot before, they are: Lasicmma laricicoIa (Karl), L. baicaIense Elberg, L. anthracinum (Czerny), L. melania melaniola Fan, L. infrequens Ackland and L. luteoforceps Fan et Fang. The species of cone magot above were identified by the genital structure of male adults before, but th

本文是1987年7—8月中法联合调查中国东北部针叶树种实害虫的初步结果,所调查地区有:黑龙江省小兴安岭的五营自然保护区、丰林林业局的母树林、东北林业大学凉水自然保护区;内蒙古大兴安岭的乌尔旗汗和库都尔人工,天然落叶松母树林以及黑龙江省植物园和东北林业大学哈。尔滨林场所调查树种有:兴安落叶松、红松、樟子松、黑松、红皮云杉、鱼鳞云杉及白皮冷杉。在球果内共发现15种害虫及其被害状,其中最主要的为害落叶松球果的Lasiomma属种类,落叶松球果被害率可达42—95%;其次是落叶松球果小卷蛾,球果被害率达6—2O%;第三位是球果螟,球果被害率达4—8%。 还发现冷杉球果花蝇[L.abietis(Huckett)]和冷杉球果小卷蛾(Barbara herrichiana Obraztsov),它们是我国的新记录。

Fire intensity is an important factor of fire behavior for fire suppression, fire ecological effects and fire use in forest. Here are five formulations of fire intensity from the literatures. The applicability of the formulations is examined by the burning test of korean pine plantation at Laoshan district, Maoer Mountain experimental forest farm of Northeast Forestry University in october 1985. It shows that potential fire intensity caculated by the formulations I=273h~(2.17) and I=3(10h)~2 are lower,...

Fire intensity is an important factor of fire behavior for fire suppression, fire ecological effects and fire use in forest. Here are five formulations of fire intensity from the literatures. The applicability of the formulations is examined by the burning test of korean pine plantation at Laoshan district, Maoer Mountain experimental forest farm of Northeast Forestry University in october 1985. It shows that potential fire intensity caculated by the formulations I=273h~(2.17) and I=3(10h)~2 are lower, and by I=0.007Hwr(1-θ) and I=mcv are higher than the result by Byram's I=0.007Hwr. It is pointed out that potential fire intensity as an index of fire intensity is convenient and safe in the forest fire control and use.

林火强度,主要指火线强度,是林火行为主要指标之一,也是组织扑火力量,评价火的生态效应,以及营林用火的重要依据。从文献中提出了五种火线强度的计算方法。通过1985年10月间在东北林业大学帽儿山林场老山施业区红松人工林中试烧检验这些公式的适用性。结果表明:若以勃兰姆公式I=0.007 Hmr为基准,则I=273h~(2·17))和I=3(10h)~2公式的计算值偏低。而J=0.007Hwr(1-O)和I=mcv公式所得潜在火线强度都偏高,指出当火线强度用作灭火和用火的指标时,可采用潜在火线强度,它们既使用方便,又较为安全。

 
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