Site Preparation For Intensively Cultured Hybrid Poplar Plantations

1984 ◽  
Author(s):  
Edward Hansen ◽  
Daniel Netzer ◽  
W.J. Rietveld
Keyword(s):  
Hybrid Poplar ◽  
Site Preparation ◽  
Poplar Plantations

scholarly journals Intensive Mechanical Site Preparation to Establish Short Rotation Hybrid Poplar Plantations—A Case-Study in Québec, Canada

Forests ◽  
2020 ◽  
Vol 11 (7) ◽  
pp. 785 ◽  
Author(s):  
Nelson Thiffault ◽  
Raed Elferjani ◽  
François Hébert ◽  
David Paré ◽  
Pierre Gagné
Keyword(s):  
Wood Fiber ◽  
Hybrid Poplar ◽  
Site Preparation ◽  
Nutrient Concentrations ◽  
Management Approach ◽  
Mechanical Site Preparation ◽  
Positive Effects ◽  
Growing Seasons ◽  
Short Rotation ◽  
Poplar Plantations

Because they generate more wood per area and time, short rotation plantations are likely to play an increasing role in meeting the global increase in the demand for wood fiber. To be successful, high-yield plantations require costly intensive silviculture regimes to ensure the survival and maximize yields. While hybrid poplar (Populus spp.) is frequently used in intensive, short rotation forestry, it is particularly sensitive to competition and resource levels. Mechanical site preparation is thus of great importance to create microsites that provide sufficient light levels and adequate soil water and nutrient availability. We conducted an experiment in Québec (Canada) to compare two intensive site preparation treatments commonly used to establish hybrid poplar. We compared the effects of double-blade site preparation (V-blade), mounding and a control on hybrid poplar growth and nutritional status four growing seasons after planting on recently harvested forested sites. We also evaluated the effects of site preparation and planted poplar on inorganic soil N. Our results confirmed general positive effects of site preparation on the early growth of hybrid poplar clones. After four growing seasons, survival was higher in the mounding treatment (99%) than in the V-blade (91%) and the control (48%). Saplings planted in the V-blade and in the mounding treatments had mean diameters that were respectively 91% and 155% larger than saplings planted in the control plots. Saplings were 68% taller in the mounding treatment than the control plots, but differences between the V-blade and controls were not significant. We did not detect significant effects of site preparation or the presence of planted hybrid poplar on soil inorganic N. Sapling foliar nutrient concentrations were not influenced by the site preparation treatments. Based on these results, mounding appears to be a good management approach to establish hybrid poplar plantations under the ecological conditions we have studied, as it is less likely to cause erosion because of the localized nature of the treatment. However, these environmental benefits need to be balanced against economic and social considerations.

Public perceptions of hybrid poplar plantations: trees as an alternative crop

2007 ◽  
Vol 9 (5) ◽  
pp. 468 ◽  
Author(s):  
Pamela D. Neumann ◽  
Naomi T. Krogman ◽  
Barb R. Thomas
Keyword(s):  
Hybrid Poplar ◽  
Public Perceptions ◽  
Alternative Crop ◽  
Poplar Plantations

scholarly journals Hybrid Poplar Genotype Affects Attack Incidence by the Poplar-and-Willow Borer (Cryptorhynchus lapathi)

2003 ◽  
Vol 18 (4) ◽  
pp. 276-280 ◽  
Author(s):  
J.D. Johnson ◽  
K.R. Johnson
Keyword(s):  
Pacific Northwest ◽  
Arid Regions ◽  
Growth Parameters ◽  
Wood Quality ◽  
Hybrid Poplar ◽  
Stem Volume ◽  
Growth Data ◽  
Cascade Mountains ◽  
Poplar Plantations ◽  
Lombardy Poplar

Abstract Increasing incidence of the poplar-and-willow borer (Cryptorhynchus lapathi) in Pacific Northwest hybrid poplar plantations has resulted in reduced wood quality and stem breakage. Three replicated, 5-yr-old clone trials established in the vicinity of Pullman, WA were rated for host attack preference. Attacks by C. lapathi were found to be significant for plantation, clone, and the clone by plantation interaction. Attack rating among clones was affected by genotype. Those clones possessing P. nigra parentage, including Lombardy poplar, OP-367, and PC-6, showed significantly lower attacks across all plantations. Within the P. trichocarpa × P. deltoides (TD) hybrids, both 58-280 and 50-194 consistently exhibited lower attacks compared to the remaining four TD hybrids. Plantation, clone, and the plantation by clone interaction affected tree growth parameters significantly. Mean clone stem volume across sites from largest to smallest was: 49-177, OP-367, 50-197, 52-225, PC-6, 50-194, 58-280, 15-29, and Lombardy poplar. Attempts to correlate attack rating with any parameter of tree size were unsuccessful. Combining growth data and attack rating, OP-367 would be recommended for planting in arid regions east of the Cascade Mountains, followed by PC-6, 50-194 and 58-280. Future hybrid poplar breeding for this region should consider P. nigra as a parent. West. J. Appl. For. 18(4):276–280.

Bird and Small Mammal Use of Short-Rotation Hybrid Poplar Plantations

1997 ◽  
Vol 61 (1) ◽  
pp. 171 ◽  
Author(s):  
Donald P. Christian ◽  
Patrick T. Collins ◽  
Joann M. Hanowski ◽  
Gerald J. Niemi
Keyword(s):  
Small Mammal ◽  
Hybrid Poplar ◽  
Short Rotation ◽  
Poplar Plantations

scholarly journals Trends and Prospects in Ontario's Poplar Plantation Management

1977 ◽  
Vol 53 (4) ◽  
pp. 195-200 ◽  
Author(s):  
L. Zsuffa ◽  
H. W. Anderson ◽  
P. Jaciw
Keyword(s):  
Forest Type ◽  
Clonal Selection ◽  
Hybrid Poplar ◽  
Poplar Plantation ◽  
Plantation Management ◽  
Rotation System ◽  
Stem Quality ◽  
Stock Type ◽  
Poplar Plantations ◽  
Intensively Managed

The hybrid poplar plantation management systems and objectives, some of the problems, and the results of work to date are summarized.Short-rotation poplar plantations are of regularly spaced traditional-size trees, intensively managed in monoculture. Silvicultural problems are associated with clonal selection, site selection and treatment, spacing, and planting stock type. The mean annual increments of best varieties have reached at 12 years of age 29 m3/ha (400 cu. ft./acre).Forest type poplar plantations are established in logged forest areas. These are less intensively managed.Fast growing poplar and associated shade tolerant hardwoods and conifers are planted in mixed plantations (poplar polyculture) on highly variable sites. Beneficial influences are apparent on the stem quality and phenology of associated trees. Growth stimulating effects, increased site utilization and disease resistance are expected.In mini-rotation system, average dry yields of 8 t/ha/a (3.5 tons/acre/yr) or more are produced in closely-spaced, intensively-managed 1- to 3-year-old coppice plantations. Pulping tests indicate satisfactory qualities. In addition, many other uses, from petrochemical replacement to food, have potential. The management problems under study are: clonal selection, site treatments, spacing, and mechanization.

scholarly journals Hybrid poplar plantations are suitable habitat for reintroduced forest herbs with conservation status

SpringerPlus ◽  
2013 ◽  
Vol 2 (1) ◽  
pp. 507 ◽  
Author(s):  
Kathleen Boothroyd-Roberts ◽  
Daniel Gagnon ◽  
Benoit Truax
Keyword(s):  
Conservation Status ◽  
Hybrid Poplar ◽  
Suitable Habitat ◽  
Forest Herbs ◽  
Poplar Plantations
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