globalchange  > 全球变化的国际研究计划
DOI: 10.1016/j.foreco.2019.05.002
WOS记录号: WOS:000474329400013
论文题名:
Whole-tree harvest and residue recovery in commercial aspen: Implications to forest growth and soil productivity across a rotation
作者: Premer, Michael, I1; Froese, Robert E.1; Vance, Eric D.2
通讯作者: Premer, Michael, I
刊名: FOREST ECOLOGY AND MANAGEMENT
ISSN: 0378-1127
EISSN: 1872-7042
出版年: 2019
卷: 447, 页码:130-138
语种: 英语
WOS关键词: NET PRIMARY PRODUCTION ; ORGANIC-MATTER ; CARBON STORAGE ; CLIMATE-CHANGE ; BIOMASS ; BIOENERGY ; IMPACTS ; COMPACTION ; SPRUCE ; PINE
WOS学科分类: Forestry
WOS研究方向: Forestry
英文摘要:

Harvest residues are an abundant by-product of commodity management in working forests, with significant potential as feedstock for bioenergy and advanced biomaterials. While contemporary experimental research programs seek to determine the short-term impacts of intensive residue removal on soil conditions and site productivity, rotation-length implications in operational settings remain speculative. Nonetheless, it is generally recognized that the effects of residue recovery are cover type and site dependent, and that production lands will be the primary source of increased utilization. We leveraged historical records across a 40-year chronosequence of 46 individual Populus spp. stands in upper Michigan harvested with Whole-tree harvest (WTH) and Stem-only harvest (STH) to observe and evaluate these practices on aboveground productivity and soil chemical properties. Stands were located across 4 contrasting soil types that are typical of site productivity and textural classes within the Great Lakes region. Results indicate a 36% reduction of residues in WTH treatments at 15.04 Mg ha(-1) compared with 23.43 Mg ha(-1) at stand establishment, yet residue levels in both treatments exceeded regional biomass retention guidelines, and differences were negligible by 16 years. The data further suggest that stand productivity is unaffected by harvest treatment. Soil C, N and macronutrients exhibited high variability across soil types, with mixed responses to treatments. These results highlight the significant amounts of residues remaining on site following operational WTH and that these practices do not appear to alter aboveground productivity of the Populus cover type across a range of soil types.


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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/146504
Appears in Collections:全球变化的国际研究计划

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作者单位: 1.Michigan Technol Univ, Houghton, MI 49931 USA
2.Natl Council Air & Stream Improvement Inc, Res Triangle Pk, NC USA

Recommended Citation:
Premer, Michael, I,Froese, Robert E.,Vance, Eric D.. Whole-tree harvest and residue recovery in commercial aspen: Implications to forest growth and soil productivity across a rotation[J]. FOREST ECOLOGY AND MANAGEMENT,2019-01-01,447:130-138
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