Department of Wood Science, Faculty of Forestry and Wood Technology, Mendel University in Brno, Zemědělská 3, 613 00 Brno, Czech Republic; Global Change Research Centre, Academy of Science of the Czech Republic v.v.i, Bělidla 986/4a, 603 00 Brno, Czech Republic.
Department of Forest Protection and Wildlife Management, Faculty of Forestry and Wood Technology, Mendel University in Brno, Zemědělská 3, 613 00 Brno, Czech Republic.
Sci Total Environ. 2015 Dec 15;538:703-11. doi: 10.1016/j.scitotenv.2015.08.105. Epub 2015 Aug 29.
Norway spruce (Picea abies (L.) Karst.) stands in certain areas of Central Europe have experienced substantial dieback since the 1970s. Understanding the reasons for this decline and reexamining the response of forests to acid deposition reduction remains challenging because of a lack of long and well-replicated tree-ring width chronologies. Here, spruce from a subalpine area heavily affected by acid deposition (from both sulfur and nitrogen compounds) is evaluated. Tree-ring width measurements from 98 trees between 1000 and 1350m above sea level (a.s.l.) reflected significant May-July temperature signals. Since the 1970s, acid deposition has reduced the growth-climate relationship. Efficient pollution control together with a warmer but not drier climate most likely caused the increased growth of spruce stands in this region, the so-called "Black Triangle," in the 1990s.
自 20 世纪 70 年代以来，欧洲中部某些地区的挪威云杉（Picea abies (L.) Karst.）经历了大量的衰退。由于缺乏长期且经过良好复制的树木年轮宽度年表，理解这种衰退的原因并重新审视森林对减少酸沉降的反应仍然具有挑战性。在这里，评估了高山地区（受到硫和氮化合物双重影响）的云杉。海拔 1000 至 1350 米的 98 棵树的树木年轮宽度测量值反映了显著的 5 月至 7 月温度信号。自 20 世纪 70 年代以来，酸沉降减少了生长与气候的关系。有效的污染控制以及更温暖但不更干燥的气候很可能导致该地区（所谓的“黑三角”）的云杉林在 20 世纪 90 年代的生长增加。
