DOI: 10.1016/j.foreco.2015.07.028
Scopus记录号: 2-s2.0-85010193027
论文题名: Strong negative impacts of whole tree harvesting in pine stands on poor, sandy soils: A long-term nutrient budget modelling approach
作者: Vangansbeke P. ; De Schrijver A. ; De Frenne P. ; Verstraeten A. ; Gorissen L. ; Verheyen K.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2015
卷: 356 起始页码: 101
结束页码: 111
语种: 英语
英文关键词: Forest management
; Nutrient cycling
; Stem only harvesting
; Whole tree harvesting
; Woody biomass
Scopus关键词: Biomass
; Budget control
; Calcium
; Climate change
; Ecology
; Ecosystems
; Floors
; Harvesting
; Nutrients
; Phosphorus
; Population statistics
; Positive ions
; Sand
; Soils
; Global environmental change
; Human population growth
; Long-term development
; Nutrient cycling
; Pinus nigra ssp. laricio
; Stand productivities
; Whole tree harvesting
; Woody biomass
; Forestry
; clearcutting
; coniferous forest
; ecological impact
; environmental modeling
; forest management
; harvesting
; nutrient budget
; phytomass
; population growth
; sandy soil
; soil nutrient
; stem
; thinning
; wood
; Belgium
; Pinus nigra
英文摘要: Global environmental changes such as climate change, overexploitation and human population growth increase the interest in woody biomass from forests as a resource for green energy, chemistry and materials. Whole Tree Harvesting (WTH) can provide additional woody biomass, mainly for bioenergy, by harvesting parts of the crown not harvested under conventional Stem-Only Harvesting (SOH). However, WTH also increases nutrient export, potentially depleting soil nutrients and threatening future stand productivity. Here we assess the impacts of WTH in Corsican pine stands (Pinus nigra ssp. Laricio var. Corsicana Loud.) with a rotation period of 48 years on poor, sandy soils in Belgium. We performed a detailed nutrient budget assessment before and after thinnings and clear-cuts under scenarios of WTH and modelled the long-term changes in ecosystem nutrients under both WTH and SOH. Our results demonstrate a strong immediate impact of WTH on aboveground nutrient stocks (mainly in clear-cuts). In clear-cuts with WTH, half of the base cations (calcium, potassium, magnesium) in the trees and forest floor were exported. The amount of available cations in the soil is not sufficient to immediately compensate for this export. Only one fourth of the amount exported were available for biota in the top 50 cm of the soil. We also modelled long-term development of ecosystem nutrients (available nutrients in the soil and nutrients in trees and forest floor) and found that the available soil calcium, potassium and phosphorus stocks are insufficiently replenished by deposition and weathering to sustain WTH on the long term. We found no indications of potential depletion of ecosystem cations and phosphorus for the next ten rotation periods under SOH management. Our results thus support a less intensive management in pine stands on poor, sandy soils, for instance, by adopting SOH and/or longer rotation periods. © 2015 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/65304
Appears in Collections: 影响、适应和脆弱性
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作者单位: Forest & Nature Lab, Ghent University, Geraardsbergsesteenweg 267 BE-9090 Melle-Gontrode, Belgium; Flemish Institute for Technological Research (VITO), Boeretang 200 BE-2400, Mol, Belgium; Research Institute for Nature and Forest (INBO), Kliniekstraat 25 BE-1070, Brussels, Belgium
Recommended Citation:
Vangansbeke P.,De Schrijver A.,De Frenne P.,et al. Strong negative impacts of whole tree harvesting in pine stands on poor, sandy soils: A long-term nutrient budget modelling approach[J]. Forest Ecology and Management,2015-01-01,356