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1.吸收养分水分与根系竞争的关系苗木和树木恨的生长及其形态受造林密度的影响。植物在一定空间內郁闭时产生个体之间的竞争,影响叶的碳素同化和根吸收养分水分的数量。地上部因造林密度增加,树冠郁闭,个体之间为获得光照条件而发生相互竞争。但是地下部根系吸收消耗水分养分和氧气时,无论是不同树种之间,还是同一树种之间,也都有竞争现象。这些竞争都是地上部,地下部的竞手形式。在地上部表现为优势木限制被压
1. Absorption of nutrients and water root competition between seedlings and trees hate the growth and its morphology by the impact of planting density. Plant in a certain space when the plant is closed due to competition between individuals affecting the leaf carbon assimilation and root absorption of nutrients and water quantity. Due to the increased density of afforestation in the shoots, the tree canopy is closed and the individuals compete with each other for the light conditions. However, when the underground roots absorb water and nutrients and oxygen, there is competition between different tree species and between the same tree species. These competitions are all forms of shootings above and below the ground. In the upper part of the performance of wooden restrictions are suppressed