农学 >>> 林学 >>> 森林保护学 >>> 森林保护学其他学科 >>>
搜索结果: 1-15 共查到知识库 森林保护学其他学科相关记录83条 . 查询时间(2.305 秒)
环境与污染生态学科组研究方向:耐污染树种的筛选、大气污染、酸沉降对中国森林的影响以及环境质量监测及评价和森林生态恢复等方面的研究工作。
根据经典承载力理论,增大基础埋深可提高地基承载力,但基础自重也会随之增加,而采用裙板式基础可解决这一矛盾。目前对裙板基础承载力研究多集中于圆形基础,对其他形状的裙板基础承载力研究较少。
“自然保护区生物标本标准化整理、整合及共享试点”子项目属国家科技基础条件平台建设项目 “标本资源”项目的子项目,于2005年12月立项,自2005年至2007年分步实现建成布局合理、功能齐全、动态发展、开放高效的自然保护区生物标本 和资源共享子平台。到2008年,自然保护区生物标本标准化整理整合及共享试点子项目共有38家单位直接参与,累计采集整理整合全国27个省(市、自治 区)196个自然保护区的...
Wildfire is a cause of major disturbance to ecosystems and economies throughout the world. Hence, the wildfire is a vital issue of environment for creating natural disaster and socio-economic damage t...
The aim is to conduct experimental measurements and analyses of physical and mental workload of harvester operators. Among other things, monitoring and analyses of work conditions and workload help re...
Information on the amount, distribution, and characteristics of coarse woody debris (CWD) in forest ecosystems is highly demanded by wildlife biologists, fire specialists and ecologists. Owing to its ...
Destroying of forest lands and landuse changes have caused undesirable effects in the watershed hydrologic conditions. Landuse and vegetation are important factors in soil erosion and runoff generatio...
The article deals with financial and socio-economic impacts of nature conservation in forest and wood industries of Slovakia. The paper presents costs and losses of state budget, forest enterprises an...
The paper describes the basic potential methods and their costs of maintenance of forest lands in protective zones under high-voltage power lines (HVPL) 400 kV and 220 kV. In the present situation and...
Nowadays, the wood cutting process looks like a technological scheme consisting of several connected and relatively inseparable parts. Wood crosscutting is the most widespread operation in the process...
Small mammals cause serious damage to forests but there is only little knowledge of their ecology and possibilities of plantation protection. The objective of our study was to collect information on t...
Social functions of forests were evaluated at Židlochovice Forest Enterprise by applying the method of Vyskot et al. (1996–2002). Real potentials of social forest functions were determined for al...
In four permanent experimental plots, dead wood was inventory under conditions of mountain forest ecosystems of the Kněhyně-Čertův mlyn National Nature Reserve, the Moravian-Silesian Beskids...
A short introduction of historical overview and current situation refer to forestry problems of the country. Local climate is characterized and impacts of natural phenomena are described, as well as t...
Forests in the Czech Republic are highly influenced by the antropogenous factors – those are particularly air pollution, pollutant deposition, soil degradation, change of the natural forest ecosystems...

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...