Total Ca in needles was lower during fast growing seasons, especially the first fast growing season, and higher or highest during bud flush or pre-dormancy.

速生期杉木针叶全钙较低，尤其是第一个生长高峰期，初期和末期较高或最高。

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Total Ca in needles was lower during fast growing seasons, especially the first fast growing season, and higher or highest during bud flush or pre-dormancy.

速生期杉木针叶全钙较低，尤其是第一个生长高峰期，初期和末期较高或最高。

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