关键词 : 氮沉降 ; 南亚热带 ; 树苗 ; 生长 ; 光合作用 [gap=2207]Key words: nitrogen depo sition; subtrop ics; tree seedlings; grow th; pho to synthesis
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uniform size of tree seedlings 均匀树苗
ornamental tree seedlings 园林绿化苗木 ; 园林绿化幼树
fruit tree seedlings 果树幼苗
quality of tree seedlings 苗木质量
improved tree seedlings base 林木良种基地
tree container seedlings 树木容器苗
Grasses are well adapted to fire, being able to resprout quickly from their roots and thus outcompete tree seedlings.
草地能够很好的适应火灾,在火灾过后迅速重新发芽,因此在火灾中能够胜过树苗。
In those areas that have had three or four periods of experimental burning only half the number of species of tree seedlings originally found are still there.
在进行过三到四次燃烧实验的地区,原本发现的树苗种类只有半数仍然存在。
The standard tree seedlings by the Association of Shandong Province.
本标准由山东省林木种苗协会提出。
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