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Medium and long term effects of logging systems on forest structure and composition in the tropical rainforest of Suriname
Journal of Forest Research ( IF 1.5 ) Pub Date : 2021-05-01 , DOI: 10.1080/13416979.2021.1913305
Gwendolyn Landburg 1, 2 , Chanella Amatamsir 1 , Bart Muys 2 , Martin Hermy 2
Affiliation  

ABSTRACT

In this study, we compared the medium and long-term effects of logging on tropical rain forest ecosystems in Suriname using reduced impact logging (RIL), CELOS Management System (CMS), and conventional logging (CL) with forest without logging (NAT). In 18 forest plots with different times since logging ended and 9 unlogged forest plots, assessments were conducted on indicators of forest structure and vegetation composition. These indicators were then modelled as a function of management type and plot age. Multivariate ordination was used to visualize forest structure and vegetation composition differences between plots. High vegetation cover in the tree layer was more related to the older RIL and the CL plots, while high vegetation cover in the sapling and seedling layer related more to the CMS and NAT plots. Canopy openness was more related to the NAT, the CMS and the younger RIL plots. Furthermore, the CMS plots, which were logged 30 years ago, still did not reach the basal area of commercially important primary forest species, compared to unlogged forest. Both RIL and CMS plots have a strong presence of secondary species. This study shows the importance of applying the RIL technique correctly and taking forest characteristics and ecological processes into account when developing forest management principles. Forest management systems should also be flexible enough to adapt to area-specific requirements, for example, increasing the rotation cycle if the timber volume is not on the desired level. In this way, both conservation and economic goals are reached.



中文翻译:

伐木系统对苏里南热带雨林森林结构和组成的中长期影响

摘要

在这项研究中,我们比较了使用减少影响伐木(RIL),CELOS管理系统(CMS)和常规伐木(CL)进行不伐木(NAT)对苏里南热带雨林生态系统伐木的中长期影响。 。在伐木结束后不同时间的18个林地和9个未伐木林地中,对森林结构和植被组成指标进行了评估。然后将这些指标建模为管理类型和地块年龄的函数。多变量排序用于可视化样地之间的森林结构和植被组成差异。树层的高植被覆盖率与较旧的RIL和CL地块更为相关,而树苗和幼苗层的高植被覆盖率与CMS和NAT地块的相关性更大。冠层的开放度与NAT,CMS和更年轻的RIL图息息相关。此外,与未砍伐的森林相比,30年前伐木的CMS地块仍未到达具有重要商业意义的原始森林物种的基础区域。RIL和CMS地块都有大量次生物种。这项研究表明正确制定RIL技术并在制定森林管理原则时考虑到森林特征和生态过程的重要性。森林管理系统还应该足够灵活,以适应特定地区的要求,例如,如果木材量未达到所需水平,则增加轮换周期。这样,既达到了保护目标又实现了经济目标。与未砍伐的森林相比,它们在30年前被砍伐,但仍未达到具有重要商业价值的原始森林物种的基础区域。RIL和CMS地块都有大量次生物种。这项研究表明,在制定森林管理原则时,正确应用RIL技术并考虑森林特征和生态过程的重要性。森林管理系统还应该足够灵活,以适应特定地区的要求,例如,如果木材量未达到所需水平,则增加轮换周期。这样,既达到了保护目标又实现了经济目标。与未砍伐的森林相比,它们在30年前被砍伐,但仍未达到具有重要商业价值的原始森林物种的基础区域。RIL和CMS地块都有大量次生物种。这项研究表明正确制定RIL技术并在制定森林管理原则时考虑到森林特征和生态过程的重要性。森林管理系统还应该足够灵活,以适应特定地区的要求,例如,如果木材量未达到所需水平,则增加轮换周期。这样,既达到了保护目标又实现了经济目标。这项研究表明正确制定RIL技术并在制定森林管理原则时考虑到森林特征和生态过程的重要性。森林管理系统还应该足够灵活,以适应特定地区的要求,例如,如果木材量未达到所需水平,则增加轮换周期。这样,既达到了保护目标又实现了经济目标。这项研究表明正确制定RIL技术并在制定森林管理原则时考虑到森林特征和生态过程的重要性。森林管理系统还应该足够灵活,以适应特定地区的要求,例如,如果木材量未达到所需水平,则增加轮换周期。这样,既达到了保护目标又实现了经济目标。

更新日期:2021-05-02
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