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生物通
14 小时
大气氮沉降会导致温带树木更新中的关键养分失衡吗?德国研究给出 ...
研究结论和讨论部分指出,虽然氮沉降增加了所有树种叶片的氮浓度,但高氮沉降并未导致关键的叶片养分失衡,至少对于 K、Ca、Mg 和 Fe 来说是如此。高氮沉降仅在低降水量地区降低了叶片 P 浓度,增加了 N/P ...
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