农学 >>> 林学 >>> 林业基础学科 林木遗传育种学 森林培育学 森林经理学 森林保护学 野生动物保护与管理 防护林学 经济林学 园林学 森林统计学 林业经济学 林学其他学科
搜索结果: 1-15 共查到林学 knowledge相关记录15条 . 查询时间(0.203 秒)
Knowledge of the structure and diversity of bird populations in forest ecosystems is important for the conservation of forest biodiversity.
The paper informs about partial results gathered and processed in the framework of the international research project “Learn for Work”, Leonardo da Vinci programme. The goal of the research project wa...
The population dynamics of wood mouse (Apodemus sylvaticus) was studied in three forest complexes differing in food supply in the intensively managed landscape of southern Moravia. They included an ol...
Knowledge of the structure and diversity of bird populations in forest ecosystems is important for the conservation of forest biodiversity. The results of bird population studies in forest ecosystems ...
Predation by natural enemies was studied as mortality factors of Hylesinus fraxini in 2006–2007. Predation by birds was not recorded and predation rate by insect reached 0.1%. Only one insect predator...
In intensively managed landscape, the dynamics of the bank vole (Clethrionomys glareolus, Cg) populations was studied in three types of forest complexes which differed in food supply. The first type w...
The paper deals with the occurrence, development and harmfulness of imported willow leaf beetle (Plagiodera versicolora Laich.) in riparian and accompanying stands of the Svratka and Svitava rivers in...
This is a study on the evaluation of stem shape in Scots pine. The experiments were carried out on 430 stems without bark, taken from 30 fully analysed sample trees that grew in 5 different locations ...
Ecosystem-based management (EBM) is a rising paradigm in resource management. Social scientists agree that EBM necessitates a natural sciences foundation yet its human dimensions are less understood; ...
Recent transitions in resource management and recognition of the role of First Nations in resource management have heightened the need for conciliation of these two different views of the world and th...
Effective and efficient application of new knowledge and technology in Canada’s forest sector continues to challenge both government and industry. This impedes the development of government policy an...
The mountain pine beetle (MPB) (Dendroctonus ponderosae Hopkins) could have a large effect on hydrologic regimes in British Columbia watersheds. Given the recent increase in size of the beetle infesta...
Rome, 5 March 2007 - With help from FAO, farmers in six sub-Saharan countries have been able to increase their income from the sale of gums and resins and to restore degraded land.
Rome, 5 March 2007 - Outbreaks of forest invasive species are no longer confined to one country or region . The increase in travel, trade and transport as well as climate change have made invasive spe...
Rome, 5 March 2007 - The number of forest fires caused by people without the knowledge or the means to prevent, control and fight them, has grown exponentially in certain parts of the world. Building ...

中国研究生教育排行榜-

正在加载...

中国学术期刊排行榜-

正在加载...

世界大学科研机构排行榜-

正在加载...

中国大学排行榜-

正在加载...

人 物-

正在加载...

课 件-

正在加载...

视听资料-

正在加载...

研招资料 -

正在加载...

知识要闻-

正在加载...

国际动态-

正在加载...

会议中心-

正在加载...

学术指南-

正在加载...

学术站点-

正在加载...