气候变化领域集成服务门户(CCPortal): Effects of mastication of burned non-commercial Pinus pinaster Ait. trees on soil compaction and vegetation response

CCPortal

DOI	10.1016/j.foreco.2019.117457
	Effects of mastication of burned non-commercial Pinus pinaster Ait. trees on soil compaction and vegetation response
	Fernández C.; Fernández-Alonso J.M.; Vega J.A.
发表日期	2019
ISSN	0378-1127
卷号	449
英文摘要	Mastication is commonly used as a fuel reduction treatment to minimize severe wildfires in fire-prone areas worldwide. Although mastication of non-commercial burned trees has become common practice in NW Spain in recent years, little is known about the possible effects on fuels, soil physical properties and vegetation recovery. In this study, sites in NW Spain (Arbo and Soutomaior) where non-commercial Pinus pinaster Ait. stands burned in August 2016 in NW Spain were selected for study. In both sites the fires scorched tree crowns and caused moderate soil burn severity. In January 2017, burned trees in 15 plots (10 in Arbo and 5 in Soutomaior) were masticated using a steel track tractor with a front mounted rotating toothed drum. In addition, five plots in Arbo were masticated using a walking excavator with a mulching head. In the 10 remaining plots (5 in each site) the trees were cut with a chainsaw and manually moved offsite. The fuel distribution categories were determined immediately after mastication. Soil penetration resistance and soil shear strength were measured immediately after wildfire, and also immediately, six months and one year after mastication. Species cover and pine seedling density were measured six months and one year after mastication. Percentage masticated material cover ranged from a mean of 60% (s.e. = 1.5) after mastication by tractor in Soutomaior to a mean of 81% (s.e. = 6.0) after mastication by walking excavator in Arbo. 64–75% of material was shredded after mastication. Mastication had no effect on soil shear strength or soil penetration resistance, and it also did not affect total vegetation cover. Species cover was not significantly affected by any of the environmental variables or masticated material cover. Mean pine seedling density was 0.2 seedlings m−2 in masticated and non-masticated plots, irrespective of the equipment used. Mastication did not favour the establishment of non-native species. Mastication after wildfire does not appear to be detrimental to soil conservation and vegetation recovery although further research is needed to confirm this. © 2019 Elsevier B.V.
英文关键词	Fire severity; Masticated fuels; Pine regeneration; Soil penetration resistance; Soil shear strength; Vegetation diversity
语种	英语
scopus关键词	Construction equipment; Excavation; Excavators; Fire resistance; Fires; Fuels; Mastication; Reforestation; Shear flow; Soil conservation; Soil mechanics; Soils; Tractors (agricultural); Tractors (truck); Vegetation; Fire severity; Pine regeneration; Soil penetration resistance; Soil shear strength; Vegetation diversities; Shear strength; biomass burning; compaction; coniferous tree; fire history; masting; mulching; penetration test; seedling; shear strength; soil analysis; soil conservation; vegetation cover; wildfire; Excavators; Fire Resistance; Fires; Fuels; Reforestation; Shear Flow; Pinus pinaster
来源期刊	Forest Ecology and Management
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/155850
作者单位	Centro de Investigación Forestal-Lourizán, Xunta de Galicia, P.O. Box 127, Pontevedra, 36080, Spain
推荐引用方式 GB/T 7714	Fernández C.,Fernández-Alonso J.M.,Vega J.A.. Effects of mastication of burned non-commercial Pinus pinaster Ait. trees on soil compaction and vegetation response[J],2019,449.
APA	Fernández C.,Fernández-Alonso J.M.,&Vega J.A..(2019).Effects of mastication of burned non-commercial Pinus pinaster Ait. trees on soil compaction and vegetation response.Forest Ecology and Management,449.
MLA	Fernández C.,et al."Effects of mastication of burned non-commercial Pinus pinaster Ait. trees on soil compaction and vegetation response".Forest Ecology and Management 449(2019).