>>> 哲学 经济学 法学 教育学 文学 历史学 理学 工学 农学 医学 军事学 管理学 旅游学 文化学 特色库
搜索结果: 1-9 共查到forest trees相关记录9条 . 查询时间(0.062 秒)
The aerial photographs showing details of forest trees, e.g. young shoots, leaves, flowers, fruit, twigs and parts of the trunk, partly displayed the forest soil and the plants in the undergrowth laye...
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...
The phenology of four deciduous forest tree species (Carpinus betulus L., Fagus sylvatica L., Quercus dalechampii Ten., Tilia cordata Mill.) was studied in a submountain beech forest stand in Central ...
In this paper we analyze how selected risk factors determine the probability of browsing by hoofed game on forest trees. Risk factors covered by the model are: tree species (Norway spruce or Scotch pi...
Game damage to forest trees     bark  nutrients  hoofed game damage  browsing       2015/3/6
Humans should behave in such a way that they will not endanger the existence of other living entities. After all, human activities affected the tree species composition and wildlife living conditions....
In order to study the effect of livestock removal on forest regeneration in Ramsar district 1- Mazandaran Province, the compartment 23 with area of 96 ha was selected. The required data were collected...
The relationship between the number of bark-stripped trees and understory vegetation was examined in cypress (Chamaecyparis obtusa) plantations in the Kuma region of Kumamoto Prefecture, Japan. First,...
Leaves in tropical forests come in an enormous variety of sizes and shapes, each of which can be ultimately viewed as an adaptation to the complex problem of optimising the capture of light for photos...
Biogenic emission of sesquiterpene (SQT) and oxygenated SQT (OSQT) were measured from the dominant vegetation in a desert shrubland and urban area (Las Vegas, Nevada, U.S.A.), and at temperate forest ...

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...