马尾松（Lamb.）针叶中元素的分布不均匀，且受针叶年龄的影响。

Distribution of elements in needles of Pinus massoniana (Lamb.) was uneven and affected by needle age.

作者信息

Kuang Yuan Wen, Wen Da Zhi, Zhou Guoyi, Liu Shi Zhong

机构信息

South China Botanical Garden, Chinese Academy of Sciences, 510650 Guangzhou, China.

出版信息

Environ Pollut. 2007 Feb;145(3):730-7. doi: 10.1016/j.envpol.2006.05.033. Epub 2006 Aug 4.

DOI:10.1016/j.envpol.2006.05.033

PMID:16890331

Abstract

Macronutrients (P, S, K, Na, Mg, Ca), heavy metals (Fe, Zn, Mn, Cu, Pb, Cr, Ni, Cd,) and Al concentrations as well as values of Ca/Al in the tip, middle and base sections, and sheaths of current year and previous year needles of Pinus massoniana from Xiqiao Mountain were analyzed and the distribution patterns of those elements were compared. The results indicated that many elements were unevenly distributed among the different components of needles. Possible deficiency of P, K, Ca, Mn and Al toxicity occurred in needles under air pollution. Heavy metals may threaten the health of Masson pine. Needle sheaths were good places to look for particulate pollutants, in this case including Fe, Cu, Zn, Pb, Cr, Cd and Al.

摘要

对西樵山马尾松当年和上一年针叶的尖端、中部、基部以及叶鞘中的大量元素（磷、硫、钾、钠、镁、钙）、重金属（铁、锌、锰、铜、铅、铬、镍、镉）和铝浓度以及钙/铝值进行了分析，并比较了这些元素的分布模式。结果表明，许多元素在针叶的不同组成部分中分布不均。空气污染下的针叶可能存在磷、钾、钙缺乏以及锰和铝中毒的情况。重金属可能威胁马尾松的健康。针叶叶鞘是寻找颗粒污染物的好去处，在这种情况下，颗粒污染物包括铁、铜、锌、铅、铬、镉和铝。