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- forest ecosystem structure 森林结构
- Undergrowth, one important component of the forest ecosystem, plays an important role in maintaining the forest structure and soil quality. 林下植被作为森林生态系统的一个重要组成部分,对维持林分结构和土壤质量起着重要作用。
- Millipedes is an important decomposer in the forest ecosystem. 马陆是森林生态系统重要的分解者,在帽儿山林区,马陆摄食量随温度的升高而增加。
- The forest coverage was high,but the forest ecosystem was weak. 森林覆盖率较高,但森林生态系统较为脆弱;
- Here the micro-scare varies from a building to a city or a forest ecosystem. 这里的微小尺度小到单一建筑物大到一座城市或一森林生态系。
- The standing crop of CWD in the forest was 98 46 t/hm 2, in which logs made up to 85 8% of the total. As the CWD was not well distributed in the forest, it increased the diversities of structure and site in the forest ecosystem. 由倒木、枯立木和大枯枝等组成的粗死木质物在该类森林中的现存量达98.;46 t/hm 2,其中倒木占其总量的85
- The coupled models predic t significant responses of terrestrial ecosystem structure and function. 2)森林和草地的总面积增加,这是作为取代干旱灌木林、沙漠和高山苔原的结果。
- A Preliminary Study on Community Characteristics of Corticolous Lichen in Forest Ecosystem in Eastern Altay Mts. 阿勒泰东部山区森林生态系统树生地衣群落特征的初步研究。
- Submerged macrophytes is key community in shallow lake ecosystem.It plays important role in water environmental quality and aquicolous ecosystem structure. 沉水植物是浅水湖泊生态系统的关键种群,对水环境质量及水生生态系统结构有重要影响。
- A valuation study on the indirect values of forest ecosystem in Changbaishan Mountain Biosphere Reserve of China. 长白山自然保护区森林生态系统间接经济价值评估。
- Sulfur Fractions in Typic Udalfs in Forest Ecosystem in Mt. Lushan as Affected by Acid Deposition. 酸沉降影响下庐山森林生态系统土壤硫形态分布研究。
- Artifical improvement of soil fertility in a regraded forest ecosystem by using municipal sewage sludge. 城市污泥对退化森林生态系统土壤的人工熟化研究。
- Decomposition processes of Tilia amurensis leaves in the Changbai Mountain forest ecosystem. 长白山森林生态系统中椴树叶分解进程的研究。
- The total N 2O emission from forest ecosystem may be underestimated if plants can emit N 2O under natural condition. 如果树木在自然状态下能排放N2 O ,那么森林生态系统的N2 O排放可能被低估。
- Similarly, some forest ecosystem models have suggested that rapid and extensive diebacks of certain trees could occur over much of their current range. 与此类似,一些森林生态模型已经显示,一些树木的迅速广泛的消失可能会超出目前的范围。
- Lin T.C. 1999.Acid deposition and forest ecosystem sensitivity in Taiwan .In Bashkin V. and Park S. 林登秋1998.;台风对台湾森林生态系的影响。
- Various forest ecosystem services should be considered when selecting tree species for implementation of SLCP. 对于森林恢复途径和树种的选择,需要考虑未来林分的多种生态系统服务功能。
- Similarly,some forest ecosystem models have suggested that rapid and extensive diebacks of certain trees could occur over much of their current range. 与此类似,一些森林生态模型已经显示,一些树木的迅速广泛的消失可能会超出目前的范围。
- It is therefore important for us to understand the forest ecosystem as a whole and appreciate how the resultant threat to its habitats will affect us. 因此,我们必须明白森林生态系统的整体运作,并了解当中的生境所面对的威胁怎样影响我们。
- Title: A Preliminary Study on Community Characteristics of Corticolous Lichen in Forest Ecosystem in Eastern Altay Mts. 关键词:树生地衣;数值分析;群落结构;阿勒泰