DOI: 10.1016/j.foreco.2013.07.019
Scopus记录号: 2-s2.0-84881326840
论文题名: Potential above-ground biomass losses from severe soil rutting during wet weather timber harvests of coastal plain loblolly pine (Pinus taeda) plantations mitigated by mechanical site preparation
作者: Passauer D.P. ; Aust W.M. ; Chad Bolding M. ; Strahm B.D. ; Burger J.M. ; Patterson S.C. ; Vance E. ; Tal Roberts E.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2013
卷: 307 起始页码: 266
结束页码: 273
语种: 英语
英文关键词: Above-ground forest productivity
; Disturbance amelioration
; Harvesting disturbances
; Long-term effects
; Mechanical site preparation
Scopus关键词: Disturbance amelioration
; Forest productivity
; Long-term effects
; Mechanical site preparation
; Nearly saturated soils
; Soil physical property
; Treatment combinations
; Volumetric soil moistures
; Biomass
; Harvesting
; Minerals
; Productivity
; Soil moisture
; Forestry
; aboveground biomass
; aboveground production
; aeration
; clay mineral
; coniferous forest
; drainage
; environmental disturbance
; forest soil
; long-term change
; mineralogy
; physical property
; plantation forestry
; soil fertility
; soil mechanics
; soil moisture
; soil profile
; soil structure
; timber harvesting
; wet season
英文摘要: Extensive areas of pine forests on wet mineral soils in the southeastern United States are harvested during nearly saturated soil conditions. Harvest trafficking during wet conditions can alter soil physical properties related to forest productivity, however mechanical site preparation can potentially ameliorate harvest induced trafficking disturbances. In 1996 three loblolly pine (Pinus taeda) stands were harvested in the coastal plain during Wet and Dry conditions (30-40% vs 10-15% volumetric soil moisture). Five treatment combinations of harvest conditions-site preparation (Wet-Flat, Dry-Flat, Wet-Bed, Dry-Bed, Wet-Mole Plow) were operationally replicated three times. Study objectives were to quantify treatment effects on above-ground productivity 16years post treatment. After 16years, above-ground biomass was greater (p-value≤0.05) in the intensive Wet-Mole Plow treatment (402.9Mgha-1, ±6.72Mgha-1). Wet-Flat (372.7Mgha-1± 6.59Mgha-1), Dry-Flat (368.6Mgha-1, ±7.14Mgha-1), and Wet-Bed (368Mgha-1±6.8Mgha-1) produced significantly less biomass than Wet-Mole Plow, but were not significantly different from each other. Dry-Bed produced the least above-ground biomass (319.3Mgha-1±6.76Mgha-1). Wet treatments were severely disturbed, yet comparisons of Wet and Dry site preparation indicated few long-term productivity effects. Exact mechanisms of recovery were likely influenced by inherent site fertility, mixed clay mineralogy, and drought during stand establishment. Overall, this research indicates that above-ground productivity was increased by drainage/aeration effects of Wet-Mole Plow and wet weather harvesting and severe soil disturbance had minimal long-term effects on aboveground productivity of loblolly pine. © 2013 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/66376
Appears in Collections: 影响、适应和脆弱性
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作者单位: Department of Forest Resources and Environmental Conservation, Virginia Tech, 228 Cheatham Hall, Mail Code 0324, 310 West Campus Drive, Blacksburg, VA 24061, United States; MWV Corp., P.O. Box 1950, Summerville, SC 29484, United States; National Council for Air and Stream Improvement (NCASI), Inc., Research Triangle Park, NC, United States
Recommended Citation:
Passauer D.P.,Aust W.M.,Chad Bolding M.,et al. Potential above-ground biomass losses from severe soil rutting during wet weather timber harvests of coastal plain loblolly pine (Pinus taeda) plantations mitigated by mechanical site preparation[J]. Forest Ecology and Management,2013-01-01,307