研究还表明，在自然条件下元宝枫幼树上述水分参数随季节和生长节律以及环境条件的变化发生有规律的变化。
Under natural condition, the ware parameters changed in respond to the changes of seasons, growth and development stages and environmental conditions.
地径和苗高年生长节律表现为慢-快-慢的“S”型生长规律。
For all poplar clones, annual growth rhythm accorded with "S" curve both in seedling height and ground diameter.
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