• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Environmental & Socio-economic Studies >Reductions in tree-ring widths of silver fir (Abies alba Mill.) as an indicator of air pollution in southern Poland
【24h】

Reductions in tree-ring widths of silver fir (Abies alba Mill.) as an indicator of air pollution in southern Poland

机译：减少银冷杉（Abies alba Mill。）的树轮宽度，作为波兰南部空气污染的指标

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The aim of the study was to investigate how the emission of pollutants to the atmosphere from the late 19th century until modern times has been recorded in rings of silver fir trees growing in southern Poland. Samples were collected from 24 firs growing in the Beskid Niski Mountains (Western Carpathians). Using a Pressler borer, a single core was collected from each tree. Within the samples, tree-ring widths were measured. On this basis, reductions of tree-ring widths were calculated and subsequently divided into three classes according to their severity. Study results indicate that growth reductions at the site studied were influenced by the pollution emitted from the now-defunct Central Industrial Region, which developed most rapidly from 1920 to 1940, and began to decline after World War II. These emissions were probably responsible for reductions in the trees sampled in the years 1928–1947. On the other hand, reductions of tree-ring widths dating from 1951 to 1989 were caused by the post-war development of heavy industry throughout Poland, and in particular in the Upper Silesian Industrial Region, which developed at its most rapid rate from 1960 to 1990. The results obtained demonstrate that reductions of tree-ring widths in the silver firs studied are related to industrial air pollution in the 20th century. As industrial production declined and environmentally friendly technologies were introduced in the early 1990s, air pollution levels decreased and an increase in tree-ring widths followed in the silver firs studied. Further reductions of tree-ring widths have been observed in recent years (since 2009), which may be caused by air pollution due to low-stack emissions from domestic boilers. The analysis conducted demonstrates that a reduction in tree-ring widths in silver fir is a sensitive bioindicator of air pollution.
机译：该研究的目的是调查在波兰南部生长的银杉树环中如何记录从19世纪末到现代的污染物向大气的排放。从Beskid Niski山脉（西喀尔巴阡山脉）生长的24个冷杉中收集样品。使用Pressler钻孔机，从每棵树上收集单个芯。在样品中，测量了年轮宽度。在此基础上，计算出树木年轮宽度的减少量，然后根据其严重程度将其分为三类。研究结果表明，所研究的地点的生长减慢受到中央工业区排放的污染的影响，该工业区从1920年到1940年发展最快，并在第二次世界大战后开始下降。这些排放量可能是导致1928年至1947年采样树木减少的原因。另一方面，1951年至1989年树木年轮宽度的减少是由于战后整个波兰，特别是上西里西亚工业区重工业的发展而造成的，该地区自1960年至2007年发展最快。 1990年。获得的结果表明，所研究的银杉树木年轮宽度的减少与20世纪的工业空气污染有关。随着1990年代初期工业生产的下降和环保技术的引入，研究的白枞中的空气污染水平降低，树木年轮宽度增加。近年来（自2009年以来），树木年轮宽度进一步减小，这可能是由于家用锅炉烟囱排放量低造成的空气污染所致。进行的分析表明，银杉树轮宽度的减小是空气污染的敏感生物指标。

著录项

相似文献

  • 外文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号