1) forest system
森林系统
1.
The micronutrients(B,Mo,Cu,Zn,Fe and Mn)in soils,the tree foliage of the current year and the litter from 14 plots were analysed to study their geochemistry s traits and distribution in the Parent rock-Soil-Forest system in the southern forestry areas of China.
调查分析了我国南方亚热带林区不同母岩、不同林分下１４个样地的土壤和林木当年生叶及林地枯落物的微量元素状况，探讨了微量元素（硼、钼、铜、锌、铁、锰）的地球化学特性，及其在母岩———土壤———森林系统中的分布规律。
2) system forest
系统森林学
4) natural forest ecosystem
森林森林生态系统
5) forest ecosystem
森林生态系统
1.
Evaluation of indirect values of forest ecosystem in Jigongshan National Nature Reserve;
鸡公山自然保护区森林生态系统间接价值评估
2.
The forest ecosystem services and their valuation of Jigongshan National Nature Reserve;
鸡公山自然保护区森林生态系统服务功能及其价值初步研究
3.
Current and future study about effects of acid deposition on forest ecosystems;
酸沉降对森林生态系统影响的研究现状及展望
6) forest ecological system
森林生态系统
1.
This paper summarized the research status of plant heavy metal (Cu、Zn、Cd) pollution in home and foreign relative forest ecological system and the action of plant in plant heavy metal monitoring and controlling,and put forward some ideas on the future research direction.
综述了国内外有关森林生态系统中植物重金属(Cu、Zn、Cd)污染的研究现状以及植物在重金属监测与防治中作用,并对今后的研究方向提出了一些看法。
2.
In this paper,utilized recent investigation data of the forest resources,computed quantificationally the sercice value of the forest ecological system,and took the forest resource status and the actual ecological policy into consideration,then to analyze positively the ecological compensation institution in Tibet.
采用西藏最近的森林资源清查数据,定量计算了西藏森林生态系统的服务价值,并结合西藏森林资源状况和现行的生态政策,实证分析西藏的生态补偿制度,提出分阶段、分步骤地实施补偿的具体建议,为西藏生态补偿政策的制定和补偿标准的出台提供科学依据。
3.
Indirect economic loss caused by alien invasive species on forest ecological system is mainly induced due to the decrease of public welfare function.
外来入侵物种对森林生态系统影响间接经济损失主要是生态系统公益性服务功能降低所造成的经济损失,间接经济损失的大小与林分生长量的下降成正比。
补充资料：森林资源(见世界森林资源、中国森林资源)
森林资源(见世界森林资源、中国森林资源)
forest resources
sen Iin ziyuon森林资源(forest resources)见世界森林资源、中国森林资源。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条