当前位置: X-MOL 学术Perspect. Ecol. Conserv. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Do we need intervention after pine tree removal? The use of different management techniques to enhance Cerrado natural regeneration
Perspectives in Ecology and Conservation ( IF 4.7 ) Pub Date : 2019-07-25 , DOI: 10.1016/j.pecon.2019.07.001
Vagner Zanzarini , Denise Zanchetta , Alessandra Fidelis

Some Cerrado areas are suppressed by pine tree cultivation. These monoculture processes can exclude the fire presence and inhibit native species development. In Southeastern Brazil, thousands of hectares were planted with these exotic trees 44 years ago, and nowadays, efforts to remove these plantations and restore the native vegetation are being implemented. However, little is known about the regeneration of Cerrado after pine removal. Thus, the aim of this study was to analyze the native plant community of Cerrado, using some techniques to enhance species natural regeneration three years after pine trees removal in areas where plantations existed since 1966. Before treatments application, surveys of the herbaceous and woody community were conducted, followed by the treatment application (fire and the removal of needles) as a management intervention. Moreover, we established control plots, with no intervention. Four and 30 months after treatment application, the herbaceous and woody vegetation, as well as the dead biomass and bare soil components were monitored to observe their regeneration. The pine removal contributed to species development and both techniques contributed to soil exposition, opening space for colonization and species to resprout. The woody and herbaceous group increased in cover, mostly in fire plots, due to the soil exposition increasing light and contributing to species development.



中文翻译:

移除松树后需要干预吗?使用不同的管理技术来增强塞拉多的自然再生

一些塞拉多地区被松树种植所压制。这些单一培养过程可以排除火势并抑制本地物种的发育。在巴西东南部,44年前,这些奇特的树木已种植了数千公顷,如今,人们正在努力清除这些人工林并恢复原生植被。但是,关于除毛后塞拉多的再生知之甚少。因此,本研究的目的是要分析塞拉多的原生植物群落,使用一些技术来增强自1966年以来存在人工林的地区在砍伐松树三年后物种的自然再生。在进行处理之前,先对草本和木本群落进行调查。进行了,其次是治疗应用(着火和拔针)作为管理干预措施。此外,我们无需干预即可建立控制区。施药后4个月和30个月,对草本和木本植物以及枯死的生物量和裸露的土壤成分进行监测,以观察其再生。松树的去除促进了物种的发展,而这两种技术都促进了土壤的暴露,开放的定居空间和物种的萌芽。由于土壤暴露增加了光照并促进了物种的发展,木质和草本类的覆盖面积增加了,大部分在火场上。监测死生物量和裸土成分,以观察其再生。松树的去除促进了物种的发展,而这两种技术都促进了土壤的暴露,开放的定居空间和物种的萌芽。由于土壤暴露增加了光照并促进了物种的发展,木质和草本类的覆盖面积增加了,大部分在火场上。监测死生物量和裸土成分,以观察其再生。松树的去除促进了物种的发展,而这两种技术都促进了土壤的暴露,开放的定居空间和物种的萌芽。由于土壤暴露增加了光照并促进了物种的发展,木质和草本类的覆盖面积增加了,大部分在火场上。

更新日期:2019-07-25
down
wechat
bug