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Title of Journal: Agroforest Syst

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Abbravation: Agroforestry Systems

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Springer Netherlands

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DOI

10.1007/s00170-009-2437-5

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ISSN

1572-9680

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Hybrid poplar Emphasis Type="Italic"Populus/Em

Authors: M K O’Neill C C Shock K A Lombard R F Heyduck E B G Feibert D Smeal R N Arnold
Publish Date: 2010/03/09
Volume: 79, Issue: 3, Pages: 409-418
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Abstract

The rapid growth rates of hybrid poplar Populus spp enable rotations of 3–6 years for biofuels or 10–15 years to obtain merchantable timber but many clones are susceptible to nutrient deficiencies when grown in alkaline soils A 1995 Oregon study demonstrated that clone OP367 P deltoides × P nigra was the only clone tested that performed well on alkaline soils Tests in Colorado and New Mexico confirmed the adaptation of this clone A multiclonal trial was established in 2003 at Farmington New Mexico and Ontario Oregon in order to screen a larger number of clones for adaptability to alkaline soils Trees were planted at 15 × 15 m spacing and irrigated by surface drip irrigation Diameter at breast height DBH and tree height were recorded annually 2003–2006 wood volumes WVol and total aboveground biomass TAB were calculated from these measurements Of the 25 clones tested 19 were common to both sites Mean height was greater at the Ontario site through the first 3 years 2003–2005 By the end of four seasons the tallest Farmington entry was OP367 at 94 m with 177 Mg ha−1 TAB while the tallest Ontario entry was Malheur3 at 89 m with 195 Mg ha−1 TAB and several other clones had statistically similar production Given the growth and productivity range at these two sites it is difficult to make generalizations across wide areas but it appears feasible to identify clones suited to alkaline soils in arid and semiarid regionsThe authors would like to thank Renae Pablo and Todd Begay of the Navajo Agricultural Products Industry for field work and data collection conducted at ASCFarmington They would also like to thank Monty Saunders for his contribution to field work at MESOntario This research was supported in part by the New Mexico State University and the Oregon State University Agricultural Experiment Stations

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  1. Predictive models for biomass and carbon stock estimation in Psidium guajava on bouldery riverbed lands in North-Western Himalayas, India
  2. Adoption potential of selected organic resources for improving soil fertility in the central highlands of Kenya
  3. A conceptual business model for an agroforestry consulting company
  4. Biomass production and carbon stocks in poplar-crop intercropping systems: a case study in northwestern Jiangsu, China
  5. Contribution of trees to soil carbon sequestration under agroforestry systems in the West African Sahel
  6. Marginal effects on biodiversity, carbon sequestration and nutrient cycling of transitions from tropical forests to cacao farming systems
  7. Photosynthesis, growth and yield of soybean and maize in a tree-based agroforestry intercropping system on the Loess Plateau
  8. Women and agroforestry: four myths and three case studies
  9. Exotic tree species displace indigenous ones on farms at intermediate altitudes around Mount Kenya
  10. Seasonal dependence of rooting success in cuttings from natural forest trees in Madagascar
  11. Cover crops alter phosphorus soil fractions and organic matter accumulation in a Peruvian cacao agroforestry system
  12. Response of the common bean ( Phaseolus vulgaris L.) to Tithonia diversifolia (Hamsl.) Gray biomass retention or removal in a slash and mulch agroforestry system
  13. Forest changes over a century in Sardinia: implications for conservation in a Mediterranean hotspot
  14. Microclimatic differences between mature loblolly-pine silvopasture and open-pasture
  15. An evaluation of the century model to predict soil organic carbon: examples from Costa Rica and Canada
  16. The potential for carbon offset trading to provide added incentive to adopt silvopasture and alley cropping in Missouri
  17. Carbon storage in livestock systems with and without live fences of Gliricidia sepium in the humid tropics of Mexico
  18. Floral resource partitioning by ants and bees in a jambolan Syzygium jambolanum (Myrtaceae) agroforestry system in Brazilian Meridional Amazon
  19. Microclimate patterns on the leeside of single-row tree windbreaks during different weather conditions in Florida farms: implications for improved crop production
  20. Perennial crop-based agroforestry systems in Northeast Brazil
  21. Arbuscular mycorrhizal association of indigenous agroforestry tree species and their infective potential with maize in the rift valley, Ethiopia
  22. Modeling tree cover changes in a pasture-dominated landscape by adopting silvopastoral practices in a dry forest region in Central Brazil
  23. Strengthening capacity for agribusiness in agroforestry and natural resources in tertiary agricultural education in Africa: African Network for Agriculture, Agroforestry and Natural Resources Education (ANAFE)
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