DOI: 10.1016/j.foreco.2012.10.030
Scopus记录号: 2-s2.0-84869862915
论文题名: Effects of seed transfers on yield and stem defects of silver birch (Betula pendula Roth)
作者: Viherä-Aarnio A. ; Kostiainen K. ; Piispanen R. ; Saranpää P. ; Vapaavuori E.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2013
卷: 289 起始页码: 133
结束页码: 142
语种: 英语
英文关键词: Betula pendula
; Climatic adaptation
; Growth
; Provenance
; Stem quality
Scopus关键词: Agricultural land
; Betula pendula
; Central Finland
; Climatic adaptation
; Covariates
; Diameter-at-breast heights
; Estonia
; Finland
; Forest sites
; Future climate
; Great Britain
; Height growth
; Optimal transfers
; Provenance
; Provenance trial
; Seed origin
; Seed transfer
; Silver birch
; Southern Finland
; Stem defect
; Stem quality
; Stem volume
; Transfer models
; Defects
; Growth (materials)
; Forestry
; agricultural land
; deciduous forest
; deciduous tree
; future prospect
; growth rate
; latitude
; low temperature
; provenance
; seed dispersal
; seed production
; stem
; survival
; upland region
; Betula Verrucosa
; Defects
; Forestry
; Growth
; Provenance
; Estonia
; Finland
; Ilomantsi
; Lappi [Finland]
; Pohjois-Karjala
; Rovaniemi
; Russian Federation
; Sweden
; United Kingdom
; Betula pendula
英文摘要: We studied the effect of seed transfers on survival, yield and stem defects of silver birch (Betula pendula Roth) of North European origin in five parallel provenance trials in Finland. The trials were located at Loppi (60°39'N) in southern Finland, at Kannonkoski (62°58'N), Ilomantsi (62°58'N) and Toholampi (63°47'N) in central Finland and at Rovaniemi (66°21'N) in northern Finland. Four trials were growing on moist upland forest sites and one on agricultural land. The material consisted of altogether 38 stand seed origins from Finland, Sweden, Estonia, Great Britain and Russia ranging between latitudes 53° and 67°N. Survival, height, diameter at breast height, stem volume/ha and number of stem defects per tree were assessed when the trees were 19years old. Seed transfer distance was calculated either as latitudinal or temperature sum difference between the seed origin and the trial location. According to coefficients of determination (R2), the latitude-based transfer models gave a slightly better fit with the data than the models based on temperature sum differences. Significant differences were found among the origins regarding all studied traits in all trials. In all traits, the pattern of variation in relation to the transfer distance was curvilinear, and the effect of transfer distance was significant. A long transfer from both directions led to a reduction in all measured traits. The optimal transfer distance and direction varied depending on the trait and covariate used in the models. According to the latitudinal model, local or slightly more northern origins had highest survival and lowest number of stem defects. Height growth and yield was at highest with the local or slightly more southern origins. A northward transfer of ca. 2° of latitude increased yield, while a southward transfer or a longer northward transfer, decreased the yield. According to the temperature sum model, origins within the limits of approximately ±200 d.d. compared to the trial location produced the highest yield. Origins with similar or slightly lower temperature sums compared to the trial locations had highest survival and best stem quality. The current seed transfer guidelines for silver birch in Finland, which recommend transfer distances of 150km or 150 d.d. at maximum in southward or northward direction, seem still valid. Because of the low gain in expected yield by even moderate northward transfers and the uncertainties in the success of more southern origins in varying future climate, we recommend no changes in seed transfer guidelines. © 2012 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/66827
Appears in Collections: 影响、适应和脆弱性
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作者单位: Finnish Forest Research Institute, Vantaa Unit, PO Box 18, FI-01301 Vantaa, Finland; Finnish Forest Research Institute, Suonenjoki Unit, Juntintie 154, FI-77600 Suonenjoki, Finland
Recommended Citation:
Viherä-Aarnio A.,Kostiainen K.,Piispanen R.,et al. Effects of seed transfers on yield and stem defects of silver birch (Betula pendula Roth)[J]. Forest Ecology and Management,2013-01-01,289