DOI: 10.1016/j.foreco.2014.11.018
Scopus记录号: 2-s2.0-84949115722
论文题名: Plant diversity on skid trails in oak high forests: A matter of disturbance, micro-environmental conditions or forest age?
作者: Wei L. ; Villemey A. ; Hulin F. ; Bilger I. ; Yann D. ; Chevalier R. ; Archaux F. ; Gosselin F.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2015
卷: 338 起始页码: 20
结束页码: 31
语种: 英语
英文关键词: Ecological group
; Fine scale
; Mechanized harvesting
; Model comparison
; Soil compaction
; Soil moisture
Scopus关键词: Compaction
; Ecology
; Logging (forestry)
; Moisture
; Soil mechanics
; Soil moisture
; Soils
; Ecological groups
; Fine-scale
; Mechanized harvesting
; Model comparison
; Soil compaction
; Forestry
; abundance
; age
; deciduous forest
; disturbance
; ecological modeling
; forest management
; photosynthetically active radiation
; shrub
; soil moisture
; species diversity
; species richness
; timber harvesting
; understory
; Biodiversity
; Ecology
; Forests
; Harvesting
; Moisture
; Plants
; Soil
; France
; Tracheophyta
英文摘要: Increasingly mechanized timber harvesting and the repeated use of skid trail networks may affect ground vegetation differently at subsequent stages in the forest rotation. At a fine scale, no studies have yet compared the influence of micro-environmental factors and the effects of skid trail disturbance on ground flora diversity. We investigated understory diversity patterns on skid trails in 30-, 50- and 63-year-old oak forests in the northern half of France. Subplots were placed on skid trail center, wheel track, skid trail edge plus an off-trail control. At each subplot, we measured soil moisture, soil compaction (penetration resistance and bulk density) and photosynthetic active radiation and recorded the abundance of all vascular plants. The richness and abundance of ground flora were calculated based on the classification of their life form, seed bank persistence, light preference and moisture requirements. For each ecological group, we found out its best diversity indicator from subplot location, micro-environmental factors (soil moisture and compaction, light) and stand attributes (stand type, basal area), then assessed the magnitude and negligibility of the effect of the best indicator. (1) Higher soil compaction compared to controls was detected on the tracks of skid trails in the 50- and 63-year-old stands. Neither soil moisture nor light varied with subplot location whatever the stand type. (2) The best diversity indicator that showed non-negligible effects included subplot location, and soil moisture or soil compaction. Compared to controls, skid trails in the 50- and 63-year-old stands were richer in tree and short-term seed bank species, while skid trails in the 30-year-old plots had no effect on ground flora. The abundance of tree and shade-tolerant species was also higher on skid trails. Soil moisture was positively correlated with the richness of low- and high-humidity species, shade-tolerant species and transient seed bank species as well as with the abundance of short-term seed bank species. Bulk density positively affected heliophilous species richness, while penetration resistance was positively related to shrub abundance. Skid trails and soil compaction in our research area had either no impact or a positive impact on ground flora diversity. Longer-term studies of skid trail effects are needed to validate these main findings. © 2014 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/65571
Appears in Collections: 影响、适应和脆弱性
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作者单位: Irstea, UR EFNO, Nogent-sur-Vernisson, France; Ecole Doctorale SSBCV, Université d'Orléans, Orleans Cedex 2, France
Recommended Citation:
Wei L.,Villemey A.,Hulin F.,et al. Plant diversity on skid trails in oak high forests: A matter of disturbance, micro-environmental conditions or forest age?[J]. Forest Ecology and Management,2015-01-01,338