DOI: 10.1016/j.foreco.2015.01.032
Scopus记录号: 2-s2.0-84923052465
论文题名: Monthly foliar-nutrient pattern in a semiarid Aleppo pine plantation five years after thinning
作者: Jiménez M.N. ; Navarro F.B.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2015
卷: 343 起始页码: 63
结束页码: 72
语种: 英语
英文关键词: Macronutrients
; Micronutrients
; Needles
; Pinus halepensis Mill.
; SE Spain
; Semiarid
Scopus关键词: Calcium
; Forestry
; Importance sampling
; Needles
; Zinc
; Leaf nutrient concentrations
; Macronutrients
; Micronutrients
; Nutrient concentrations
; Partial correlation
; Pinus halepensis mills
; Semiarid
; Silvicultural practices
; Nutrients
; coniferous forest
; forest management
; nutrient dynamics
; plantation
; semiarid region
; silviculture
; stand dynamics
; thinning
; Needles
; Pinus Halepensis
; Aleppo
; Halab
; Syrian Arab Republic
; Pinus halepensis
英文摘要: Foliar-nutrient concentrations in tree species have traditionally been used to assess the nutrient status of forests. Monitoring these parameters in artificial forest plantations could be crucial to planning the best silvicultural practices as a basic strategy for improving stand resilience. This work examines the monthly patterns of foliar-nutrient concentrations over a 13-month period in a Pinus halepensis plantation five years after four different thinning regimes were applied (T0 treatment: control plots; T75, T60, and T48 treatments: 75%, 60%, and 48% of mean basal area was removed, respectively). Mean leaf-nutrient concentrations reported were among the normal and adequate ranges shown in the literature for P. halepensis, with the exception of Ca (higher), as well as K and Zn (lower). Thinning did not affect the leaf P or K concentrations in any case or sampling period. Moreover, we found no clear differences between thinned and control stands for other nutrients. Only B was higher in control stands and Zn in thinned stands. Exceptionally, N, Mg, Fe, Zn, and Ca concentrations proved higher in the most intense thinning (T75), for specific sampling periods. Patterns of foliar-nutrient concentrations were similar among thinned treatments and control. All nutrient concentrations decreased over the study period except the Ca concentration (and Mg in T75), which increased. Foliar-nutrient concentrations showed a positive linear correlation between nutrients (especially N-P, P-B and N-B), except K-Ca, K-Mg, and Fe-Ca, which proved negative. Partial correlations (month by month) among nutrient concentrations differed from the general patterns. Foliar-nutrient concentrations and paired relationships were influenced mainly by the sampling period, suggesting the importance of standardized leaf-sampling designs in studies analyzing and comparing foliar-nutrient concentrations. © 2015 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/65507
Appears in Collections: 影响、适应和脆弱性
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作者单位: AGROECOSOST Research Group, Institute of Agricultural Research and Training (IFAPA Centro Camino de Purchil Junta de Andalucia), Camino de Purchil s/no, Granada, Spain
Recommended Citation:
Jiménez M.N.,Navarro F.B.. Monthly foliar-nutrient pattern in a semiarid Aleppo pine plantation five years after thinning[J]. Forest Ecology and Management,2015-01-01,343