DOI: 10.1016/j.foreco.2016.08.001
Scopus记录号: 2-s2.0-84982830453
论文题名: Spatio-temporal dynamics of Sorghum halepense in poplar short-rotation coppice under several vegetation management systems
作者: San Martín C. ; Andújar D. ; Fernández-Quintanilla C. ; Dorado J.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2016
卷: 379 起始页码: 37
结束页码: 49
语种: 英语
英文关键词: Johsongrass
; Poplar coppice
; Sorghum halepense
; Weed shifting
; Weed-poplar competition
Scopus关键词: Crops
; Cultivation
; Productivity
; Rotation
; Soil moisture
; Vegetation
; Johsongrass
; Management strategies
; Poplar coppice
; Short rotation coppice
; Sorghum halepense
; Spatio-temporal dynamics
; Vegetation management
; Weed shifting
; Forestry
; chemical control
; coppice
; deciduous tree
; grass
; growing season
; growth rate
; habitat management
; mechanical control
; soil moisture
; spatiotemporal analysis
; weed
; weed control
; Spain
; Sorghum halepense
英文摘要: Weeds are one of the most important factors reducing productivity in poplar short-rotation coppices. Sorghum halepense is a very harmful perennial weed affecting irrigated crops preceding poplar plantations. The main goal of this study is to assess the potential hazards of residual S. halepense patches in newly established poplar crops and the effects of different vegetation control treatments. Our study objectives were: to describe the spatio-temporal dynamics of this perennial weed during the first rotation coppice of poplar in the presence of different vegetation management strategies and to assess the effect that S. halepense has on poplar growth. Experiments were conducted in an experimental field in central Spain and were repeated over time. S. halepense patches were artificially established in a random block design with four replications. Four types of vegetation management were performed: mechanical (field cultivator and rototiller) and chemical (glyphosate and fluazifop-p-butyl). Patches were monitored throughout all the experiments and poplar productivity parameters (height and biomass) were recorded. Monitoring indicated patch displacement towards crop rows, probably due to higher soil moisture levels in this irrigated area, and a reduction in patch density in the central inter-row area owing to different management strategies. However, displacement was barely detected lengthwise, as was originally expected, at least in mechanical management. Mardia's test (circular statistics) indicated no significant differences in patch displacement between mechanical and chemical strategies. Regarding poplar growth, the mixed linear model indicated no consistent significant differences in terms of vegetation management, differences depending more on the proximity of S. halepense patches. This study has demonstrated that while S. halepense has very limited capacity to spread spatially in poplar short-rotation coppice, its proximity to crop rows may cause important damage in poplar productivity, especially during the first growing season. Therefore, proper management of this weed species is strongly recommended during this period. © 2016 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/64722
Appears in Collections: 影响、适应和脆弱性
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作者单位: Institute of Agricultural Sciences, CSIC, Serrano 115b, Madrid, Spain
Recommended Citation:
San Martín C.,Andújar D.,Fernández-Quintanilla C.,et al. Spatio-temporal dynamics of Sorghum halepense in poplar short-rotation coppice under several vegetation management systems[J]. Forest Ecology and Management,2016-01-01,379