By canonical correlation analysis, sampling time was selected, and foliar mutriment elements closely related to forest tree growth were determined.
用典型相关分析方法选择采样时间、确定与林木生长有密切关系的叶片养分元素。
Insects and pathogens are integral components of forest ecosystems and normally are present at a relatively low density, causing little damage, and having negligible impact on tree growth and vigour.
昆虫和病原体是森林生态系统的固有成分，通常其密度相对较低，所造成的损害较小，对树木生长及其活力的影响微乎其微。
First, cleaning up a forest after a fire or storm does not necessarily create the right conditions for tree growth.
首先，在大火或者暴风雨之后的清理并不一定会给树的生长提供合适的生长环境。
Establishing the growth model was an effective approach to study the growth law of forest tree.
建立生长模型是研究林木生长规律的有效手段。
The early growth of 23 broad-leaved tree species from the south subtropical forest community restoration standardization demonstration area were investigated and analyzed.
对南亚热带森林群落恢复标准化示范区23个阔叶树种的早期生长进行了调查与分析。
The acid deposits have not only directly affected on tree growth but also indirectly through the acidification of forest soil which is probably one of the facts that cause forest decline.
酸性沉降不仅对林木生长产生直接影响，而且通过土壤还对林木产生间接影响。
A transfering probability matrix model of linearly generalized diameter growth was used to deal with the tree species composition problem of mixed unevenly aged forest.
对直径生长转移概率矩阵模型进行了线性扩展，用以研究混交异龄林的树种组成问题。
Result shows, This competition index is suitable to Chinese fir man-made forest, and individual tree growth model accords with the demands of accuracy, it can be used to estimate growth of stands.
结果表明：该竞争指标对杉木人工林适用，所建立的单木生长模型符合精度要求，可用于预估林分生长。
The rehabilitating role of tree planting is by no means confined to areas which formerly bore forest growth.
植树造林的恢复作用决不限于从前的林区。
Monoecy was significantly associated with the tree growth form and was relatively common in seasonal forest vegetation.
雌雄同株异花与乔木生活型显著相关并在季节性雨林植被中相对普遍。
It pointed out the main factors determining the growth of fruit bodies of the edible fungus Suillus luteus and the greatest yield were accompanying tree species, site, forest stand structure and soil;
提出决定褐环粘盖牛肝菌等菌根食用菌子实体能否发生和发生最大产量的根本因素是共生树种类型、立地、林分结构、土壤；
It pointed out the main factors determining the growth of fruit bodies of the edible fungus Suillus luteus and the greatest yield were accompanying tree species, site, forest stand structure and soil;
提出决定褐环粘盖牛肝菌等菌根食用菌子实体能否发生和发生最大产量的根本因素是共生树种类型、立地、林分结构、土壤；
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