森林学

Dendrology provides students knowledge on trees necessary by forest management, silviculture, ecology, natural reserve conservation and wildlife protection, plant resources and their utilizations. So it is important for students studying forestry to learn knowledge about trees in classification, biological and ecological characteristics.

森林资源管理、退耕还林、林业生态工程、森林保护、植物资源及林产品开发利用等都离不开树木学知识，因此，作为林学的学生必须了解树木的分类、树木的生物学、生态学特性等方面知识，以便为这些课程的学习以及将来的工作提供基础。

On the other hand, Dendrology is necessary by other courses like plant resources, utilizations of wildlife, botany focused on medicine plants, silviculture, forest management, biodiversity conservation, and natural protection, etc.

同时树木学又是植物资源学、野生生物资源开发与利用、药用植物学、植物化学、森林生态学、林木培育学、森林经理学、林木良种选育、生物多样性保护、自然保护区学等学科的基础理论之一。

By the integration of GIS and the data obtained from forest resource inventory in 1987 and 2000, the analysis of spatial pattern of forest resource in Jinsong forest farm in Baihe forest bureau was carried out and the maps of management based on current resource status were produced.

利用1987年和2000年两期森林资源二类调查数据、林学图、地形图和GIS技术相结合，对长白山区白河林业局劲松林场的资源空间格局变化进行分析，并在现有资源状况下，根据森林采伐规程，通过GIS技术对林场进行经营利用规划，生成经营利用主题图。

School of forest resources is primarily dedicated to teaching and research forestry resources including agricultural economics, general botany, general zoology, ichthyology, herpetology, genetics, mammalian anatomy, general ecology, environmental science, microbiology, invertebrate zoology, vertebrate physiology, forest hydrology, forest ecology, forest resource economics.

该学院主要致力于林学的教学与科研，学科领域包括农业经济学，普通植物学，普通动物学，鱼类学，爬虫学，遗传学，哺乳动物解剖学，普通生态学，环境科学，微生物学，无脊椎动物学，脊椎动物生理学，森林水文学，林业生态学，森林资源经济学等。

The Council supervises the work of subject matter standing committees including: bacteriology; biochemistry, physiology, and molecular biology; biological control; chemical control; diagnosticians; diseases of ornamental plants and turf grasses, environmental quality and plant health; epidemiology; exobiology and space phytopathology; forest pathology; genetics; integrated pest management; mycology; mycorrhizae; nematology; plant disease detection; plant disease losses; postharvest pathology and mycotoxicology; seed pathology; soil microbiology and root diseases; tropical plant pathology and virology.

该协会主要研究范围涉及细菌学、生物化学、生理学、分子生物学、生物控制学；化学控制学；诊断学；观赏植物和草皮病理、环境质量与植物健康；流行病学；外空生物学和空间植物病理学；森林病理学；遗传学；病虫害综合管理；真菌学；线虫学；植物疾病诊断；植物病害损失；收割期后的植物病理学和真菌毒理学；种子病理学；土壤微生物学和植物根病理；热带植物病理学与滤过性微生物学等。

It is closely related to other successive courses such as Forest Ecology, Silviculture, Forest Management, Natural Reserve Conservation and Wildlife Protection.

树木学是林学专业的一门重要的专业基础课，它与森林生态学、造林学、森林经理学、自然保护学等都有着密切的关系。

We observed that the genomic data for the four fig species were more divergent than for stone oak species, possibly due to their complex pollination syndrome and high rates of gene flow. Our approach greatly enhances the application of SRS technology to the study of non-model organisms and directly identifies the most informative genetic elements for more detailed study and assembly.

新一代 DNA 测序技术的突破为研究热带森林的生态和进化提供了一个新的平台， Cannon 教授等的研究是版纳植物园为把基因组学应用在植物功能适应进化与气候变化、物种多样化和共存、以及极度濒危的亚洲热带森林自然资源保护诸方面所迈出的重要一步。

Kaizuca, Camellia japonica L.,Ginkgo biloba L., Celtis sinensis Pers., Zelkova schneideriana Hand.-Mazz., Acer truncatum Bunge, Albizia julibrissin Durazz., Ailanthus altissima Swingle, Cerasus serrulataG.,Pistacia chinensis Bunge, Euonymas japonicus Thunb.Sabina konarovii Chent at W.T.Wang, Sabina chinensis cv.Pfitzeriana. 3.Tree planning on urban forestry construction of Qingdao city is based on trees investigation,analyses, appraise and under the guidance of the theories on city ecology, ecological landscape, scenic aesthetics, city planning and etc.

青岛市城市森林建设的树种近自然化规划：树种布局规划应以树种调查、分析、评价为基础，以城市生态学、生态园林学、风景美学、城市规划学等理论为指导，并综合青岛市所在植被分布自然规律和城市森林建设现状，因地制宜的确定城市树种的主要比例关系：常绿树与落叶树的比例以3：7为宜；乔木与灌木的比例以2：1为宜；针叶树与阔叶树的比例以1：4为宜；木本植物与草本植物之比1：4；速生树与慢生树的比例以1：1为宜。

There they fished and learned to swim. There they made bows and arrows and learned to throw the tomahawk as well as old Simon Kenton himself or any of the redskins who sought to take his scalp.

他们在那里钓鱼和学游泳，在那里，他们做弓和箭，学习掷斧头，掷的跟老赛门肯特或者是那些寻找猎人头的印地安人一样好，在那里，他们学习跟踪和森林知识，有这些知识，有时候激发了那些对森林不是很精通者的敬畏和想像。

We must confess that for many years, we were not able to see the hidden meaning of the poem. Two years ago, we were rather intrigued by the line "茂林斧过尽为薪"(line 14). Literally, it means: Lush forests, swept by the axe, completely transformed into firewood. We thought this was a very clever pun because firstly it means that a person without education is transformed through learning into someone useful, as befitting a university. Secondly, Nantah stood on land that was once covered by a rubber estate which had now been cleared to build the university.

老实说，好几年来，我们都没法十分了解此诗隐藏的背景，大概是两年前吧，我们还正在思考此诗中第14行&茂林斧过尽为薪&一句，如果是直译即&利斧把森林砍了，森林就变成薪木&，我们当初以为这句的暗喻是说，正如大学教育一般能把一个无学的人，教育成有用的社会栋梁，正巧南大校址，本来就是一片茂盛胶园，而现今宏立了一所大学，不正是说得极合适，也不就是&茂林斧过尽为薪&吗？

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。