首页> 外文期刊>Lesnicky casopis >Salvage felling in the Slovak Republica??s forests during the last twenty years (1998a??2017)
【24h】

Salvage felling in the Slovak Republica??s forests during the last twenty years (1998a??2017)

机译:在过去的二十年(1998A的森林中,在斯洛伐克共和国的森林(1998A了2017年)

获取原文
           

摘要

Global climate change also influences the forest damaging agents occurrence and thus a forest health. Forest trees that are damaged by agents are in managed forests processed by salvage felling. The amount of an annual salvage felling represents the occurrence of a damaging agents occurrence in a certain year. In 2015, the area of forests in Slovakia reached 2.014 mil. ha. Within the 20 years (from 1998 to 2017), the total felling reached 162.52 mil. m3, out of this 47.99 % were ascribed to a salvage felling. Abiotic agents were the most damaging agents (42.28 mil. m3 of damaged wood), out of it a wind was the most important one. Biotic damaging agents were the second important group (32.165 mil. m3), whereas bark beetles on spruce were the most important. The third group and the less damaging one was anthropogenic agents group (3.555 mil. m3) with an air pollution as the most important damaging agent. There was no statistically significant difference in the volume of processed trees within salvage felling caused by abiotic and biotic damaging agents. However, these two groups caused significantly higher damages than the third group of anthropogenic damaging agents. There were two major wind damages, Al??beta in 2004 and ??ofia in 2014 with damaged wood 5.3 mil. m3 and 5.2 mil. m3, respectively. They occurred in southern, central and northern part of Slovakia. As damaged wood was not processed from strict nature conservation areas, the secondary damaging agents, mostly Ips typographus on Norway spruce reproduced as much that after some years it cumulatively reached or even exceeded damages from those two major windthrows episodes.
机译:全球气候变化也影响森林损害的药剂发生,从而影响森林健康。被代理商损坏的森林树木是由救助的管理森林处理。年份挽救物的数量代表一年内发生破坏性的药剂。 2015年,斯洛伐克森林地区达到2.014密耳。哈。在20年(从1998年到2017年)中,总跌幅达到162.52密尔。在这个47.99%的情况下,M3归因于救助摔倒。非生物剂是最具破坏性的药剂(42.28密耳。损坏的木头M3),其中风是最重要的。生物破坏剂是第二个重要组(32.165密耳。M3),而云杉的树皮甲虫是最重要的。第三组和损害的损害较少的是人为试剂组(3.555密耳。M3),空气污染是最重要的破坏剂。生物和生物破坏剂引起的抢救鼠中的已加工树木体积没有统计学意义。然而,这两组造成比第三组人为损伤剂的损害显着提高。 2004年有两个主要的风损坏,Al ?? Beta,2014年的ofia有损坏的木头5.3密耳。 M3和5.2密耳。分别为m3。他们发生在斯洛伐克的南部,中央和北部。由于损坏的木材没有从严格的自然保护区处理,二次损伤剂,大多是IPS云杉上的IPS错误转载,多年来它累计达到甚至超过这两个主要Windthrows发作的损害。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 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