DOI: 10.1016/j.foreco.2013.01.021
Scopus记录号: 2-s2.0-84874352134
论文题名: Effects of stabilized wood ash on nutrient status and growth of Scots pine - Comparison between uplands and peatlands
作者: Moilanen M. ; Saarsalmi A. ; Kukkola M. ; Issakainen J.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2013
卷: 295 起始页码: 136
结束页码: 144
语种: 英语
英文关键词: K deficiency
; Needle nutrients
; P deficiency
; Pinus sylvestris
; Stand growth
Scopus关键词: Application rates
; Basal area
; Basal area growth
; Basal area increment
; Central Finland
; Fertile sites
; Fresh-weight basis
; Growth response
; Nutrient deficiency
; Nutrient status
; Peat land
; Peatland sites
; Pinus sylvestris
; Scots pine
; Site types
; Stand growth
; Stem growth
; Study sites
; Wood ash
; Landforms
; Needles
; Nutrients
; Forestry
; basal area
; comparative study
; coniferous tree
; experimental design
; growth response
; nutrient uptake
; peatland
; stand dynamics
; upland region
; wood ash
; Forestry
; Needles
; Nutrients
; Pinus Sylvestris
; Finland
英文摘要: The effects of granulated and self-hardened wood ash on the nutrient status and stem growth of middle-aged Scots pine (Pinus sylvestris L.) stands were studied at two upland and two peatland sites 13years after ash application. The study sites were located in central Finland and represented different site fertility classes. The treatments consisted of an unfertilized control and two different doses of ash, 3 and 9Mgha-1 (upland sites) or 5 and 15Mgha-1 (peatland sites) on fresh weight basis, with both types of wood ash. All four sites had a similar experimental design following the principles of randomized blocks with four replications.The effect of ash treatments on the stand growth depended on the site type and ash dose. At the nutrient-poor upland site, the ash-induced response in the basal area growth was slightly positive and at the more fertile site slightly negative. However, in all cases the growth response at the upland sites was non-significant. At peatland sites, the ash applications increased stand growth remarkably, and the ash-induced basal area response strengthened with time, especially at the more fertile site. The high application rates resulted in stronger responses than the lower doses at the peatland sites. At the end of the study period, the annual basal area increment on the plots treated with the higher application rate of ash was 1.7-1.8-fold at the nutrient-poor site and 4-5-fold at the more fertile site compared with the control.While the trees in unfertilized control plots of peatland sites had sufficient (Site 3) or even an abundance of (Site 4) available N, they were suffering from severe P and K deficiencies (Site 4) or moderate K deficiency (Site 3). Higher dose of both ash types increased needle K concentrations at both peatland sites and that of P at Site 4 above the deficiency limit. At upland sites no nutrient deficiencies were found. All ash treatments increased needle B concentrations both at upland and peatland sites. © 2013 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/66666
Appears in Collections: 影响、适应和脆弱性
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作者单位: Finnish Forest Research Institute, Northern Finland Regional Unit, Rakentajantie 3, FI-90014 Oulu, Finland; Finnish Forest Research Institute, P.O. Box 18, FI-01301 Vantaa, Finland
Recommended Citation:
Moilanen M.,Saarsalmi A.,Kukkola M.,et al. Effects of stabilized wood ash on nutrient status and growth of Scots pine - Comparison between uplands and peatlands[J]. Forest Ecology and Management,2013-01-01,295