农学 >>> 农学总论 作物学 园艺学 土壤学 植物保护学 农药学 林学 畜牧学 兽医学 水产学
搜索结果: 1-15 共查到农学 forest ecosystem相关记录16条 . 查询时间(0.171 秒)
Forests play an important role in biodiversity conservation, being one of the main providers of ecosystem services, according to the Economics of Ecosystems and Biodiversity. The functions and ecosyst...
Juniperus macropoda is the only tree species of a cold desert ecosystem that is experiencing high anthropogenic pressure and has a poor regeneration status due to harsh environmental conditions. Due t...
A survey was conducted in the Training Forest Enterprise called Masaryk Forest in Křtiny (TFE Křtiny) in order to determine the extent of recreational use of the area, visitors travel cos...
Knowledge of the structure and diversity of bird populations in forest ecosystems is important for the conservation of forest biodiversity.
Values are qualities and beliefs orientating human actions and they change according to socio-economic variables such as gender, culture, education and income.
Although examples of payments for ecosystem services (PES) can be traced back at least as far as the 1980’s, it is still a relatively new instrument, and the hitherto experience in many parts of the w...
In order to determine the environment carrying capacity in terms of biomass production utilizable by game 360 representative sample plots (1 ?1 m) were laid out in the growing season on the basis of t...
We analysed stable isotopes of N in a spruce forest under ambient rainfall (no further manipulation of the atmospheric input) and clean rain application (10 years of reduced inorganic N- and acid-cons...
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 ...
The uniqueness of limestone soil-forming substrate was assessed with respect to the classification of forest ecosystems. 50 soil profiles from the Bohemian Karst were studied and the results were conf...
The greatest advance in ecosystem research was made in the last century. The development and acceptance of forest ecology by foresters occurred because it provided a means for recognizing, understandi...
Forest classification, made up by Plíva and Průša (Plíva 1971), has been used in the Czech Republic forestry since 1970. This classification is based on ecological factors of the environment...
Deer Damage Reveals Biological Interactions in a Forest Ecosystem.
Nowadays, Turkish forest management philosophy has changed from timber management to ecosystem-based multiple-use forest planning (EBMUFM) with the principles of “sustainable forest management” criter...
Modeling forest management activities has been tackled by scientists over the last two decades. Both simulation and optimization techniques have been used in solving forest management planning proble...

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...