DOI: 10.1016/j.foreco.2016.08.020
Scopus记录号: 2-s2.0-84982226210
论文题名: Is plant diversity on tractor trails more influenced by disturbance than by soil characteristics?
作者: Wei L. ; Hulin F. ; Chevalier R. ; Archaux F. ; Gosselin F.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2016
卷: 379 起始页码: 173
结束页码: 184
语种: 英语
英文关键词: Ecological group
; Forest management
; Mechanized harvesting
; Negligibility analysis
; Soil compaction
; Soil moisture
Scopus关键词: Compaction
; Ecology
; Forestry
; Machinery
; Moisture
; Plants (botany)
; Seed
; Soil mechanics
; Soil moisture
; Soil surveys
; Soils
; Tractors (agricultural)
; Ecological groups
; Forest machineries
; Herbaceous species
; Mechanized harvesting
; Negligibility analysis
; Penetration resistances
; Soil characteristics
; Soil compaction
; Tractors (truck)
; abundance
; bulk density
; compaction
; deciduous tree
; forest management
; harvesting
; herb
; seed bank
; soil moisture
; species diversity
; species richness
; understory
; vascular plant
; France
英文摘要: Despite broad recognition that forest machinery access systems impact plant diversity, previous studies have largely focused on skid trails. As a consequence, how tractor trails (dead-end single-use trails) influence plant diversity is poorly understood. In particular, knowledge is lacking on whether fine-scale understory diversity is better indicated by tractor-trail disturbance or by the environment. We investigated the relative importance of tractor-trail disturbance conditions and soil characteristics, as well as their effects on ground floral diversity in four oak forest types (a high forest and three coppice-with-standard forests) in the northern half of France. Subplots representing five types of disturbance conditions were placed on both recent (<12 years) and older (⩾12 years) tractor trails at two locations – (trail center and wheel track), and an off-trail control subplot was added. At each subplot, we measured soil moisture, penetration resistance (PR) and bulk density (BD), and the last two were used as proxies for soil compaction. We also recorded the abundance of all vascular plants below 2 m in height on each subplot. Plant diversity was calculated based on CSR plant strategy (C-competitors, S-stress tolerators and R-ruderals), seed bank persistence, and light and moisture preference. We found that compared to controls, PR and BD were significantly greater on both old and recent tractor trails; soil moisture was greater on recent tractor trails. Comparing models showed that tractor-trail disturbance mattered more than did the soil characteristics for the diversity of most ecological groups (except for woody species richness). Compared to controls, tractor trails favored the richness of the short-term seed bank, C-strategy, CSR-strategy, heliophilous and hygrophilous herbaceous species; and abundance of heliophilous, CSR-strategy and hygrophilous herbaceous species. Furthermore, compared to controls, both richness and abundance of mesophilous herbaceous species strongly increased on recent tractor trails and strongly decreased on old tractor trails. Concerning effects of soil characteristics, only one non-negligible (positive) relationship was found: between BD and the richness of heliophilous woody species. Since plant diversity is affected by tractor trails, and since plant recovery is very slow on trails, long-term studies on their impact are needed. © 2016 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/64749
Appears in Collections: 影响、适应和脆弱性
There are no files associated with this item.
作者单位: Irstea, UR EFNO, Domaine des Barres, F-45290 Nogent-sur-Vernisson, France; Ecole Doctorale SSBCV, Université d'Orléans, Orleans Cedex 2, France
Recommended Citation:
Wei L.,Hulin F.,Chevalier R.,et al. Is plant diversity on tractor trails more influenced by disturbance than by soil characteristics?[J]. Forest Ecology and Management,2016-01-01,379