DOI: 10.1016/j.foreco.2017.07.023
Scopus记录号: 2-s2.0-85025112828
论文题名: Aboveground biomass responses to organic matter removal, soil compaction, and competing vegetation control on 20-year mixed conifer plantations in California
作者: Zhang J. ; Busse M.D. ; Young D.H. ; Fiddler G.O. ; Sherlock J.W. ; TenPas J.D.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2017
卷: 401 起始页码: 341
结束页码: 353
语种: 英语
英文关键词: Aboveground biomass accumulation
; Competing vegetation
; Harvesting impacts
; Long-term soil productivity
; Mixed conifer plantation
; Soil disturbance
Scopus关键词: Biogeochemistry
; Biological materials
; Biomass
; Compaction
; Ecology
; Organic compounds
; Productivity
; Seed
; Soil mechanics
; Soils
; Vegetation
; Above ground biomass
; Harvesting impacts
; Long term soil productivity
; Mixed conifer
; Soil disturbances
; Forestry
; Coniferophyta
英文摘要: We measured vegetation growth 5, 10, and 20 years following plantation establishment at 12 Long-Term Soil Productivity installations in California's Sierra Nevada and Southern Cascades. The combined effects of soil compaction (none, moderate, severe), organic matter removal (tree bole only, whole tree, whole tree plus forest floor), and competing vegetation control (complete: VC, none: NVC) on aboveground biomass were tested. Soils ranged from sandy loams to clay loams and were compacted (10–25% bulk density increase) prior to planting of mixed-conifer seedlings. Soil compaction resulted in a 15% increase in planted tree biomass on a plot-scale basis, attributed to improved seedling survival, along with reduced competing vegetation biomass on NVC plots. The unexpected response of tree growth to compaction was consistent across the LTSP sites. After year 5, there were no differences among the diverse organic matter treatments in tree biomass, periodic annual increment, or competing vegetation biomass. In contrast, vegetation control had a strong positive effect on tree biomass, about 68% greater tree growth (129.13 Mg ha−1) compared to trees grown on NVC plots (76.83 Mg ha−1). However, total vegetation biomass (trees + competing vegetation) was greater without vegetation control for the initial 10 years of the study, prior to canopy closure. The results showed near-complete tolerance by forest biomass to soil compaction and surface organic matter manipulation on LTSP plantations across a wide geographic range in California. Vegetation control was the single most important factor affecting 20-year tree biomass. © 2017 Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/64184
Appears in Collections: 影响、适应和脆弱性
There are no files associated with this item.
作者单位: USDA Forest Service, Pacific Southwest Research Station, 3644 Avtech Parkway, Redding, CA, United States; USDA Forest Service, Pacific Southwest Region, 3644 Avtech Parkway, Redding, CA, United States; USDA Forest Service, Pacific Southwest Region, 1323 Club Drive, Vallejo, CA, United States
Recommended Citation:
Zhang J.,Busse M.D.,Young D.H.,et al. Aboveground biomass responses to organic matter removal, soil compaction, and competing vegetation control on 20-year mixed conifer plantations in California[J]. Forest Ecology and Management,2017-01-01,401