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Juniper (Juniperus virginiana) encroachment into grassland results in increased trace-element inputsNARA Subscribed
Background and aims Woody plant encroachment poses a significant threat to grasslands globally, and in the southcentral USA, juniper ( Juniperus virginiana ) is rapidly taking over large areas of grasslands. Despite ongoing research, the reasons behind the rapid encroachment of juniper species in Oklahoma remain elusive. We hypothesized that the interaction between juniper canopy, aeolian, and wet-deposition processes lead to...
Sweetgum ( Liquidambar styraciflua ) is an excellent short-rotation woody crop species for producing hardwood pulp and biofuel feedstock on marginal sites. A recent development which may improve growth is the production of hybrid sweetgum (L. formosana x styraciflua) clones. We compared the productivity and attributes, e.g., wood specific gravity and stand growth, of operational plantations of hybrid sweetgum clones to improve...
Perceived Obstacles in Land Use Change for Hybrid Sweetgum Plantations: Landowner Opinions from the South Central United StatesNARA Subscribed
Hybrid sweetgum (Liquidambar styraciflua × L. formosana) has received considerable attention as a potential feedstock for traditional and nontraditional forest-based enterprises due to its fast growth and large specific gravity. However, the perceptions of landowners are important to understand the degree of acceptance concerning land use change to consider this opportunity in the United States. We administered a survey instru...
Structural diversity is better associated with forest productivity than species or functional diversityNARA Subscribed
Understanding the relationship between biodiversity and productivity can be advanced by improving metrics used to quantify biodiversity. Structural diversity, that is, variation of size and form of plant organs, is an emerging biodiversity metric. However, compared with the other biodiversity metrics, its relative importance in specific components of forest productivity, for example, recruitment of new individuals, biomass net...
Effects of Planting Density and Seed Source on Loblolly Pine Stands in Southeastern OklahomaNARA Subscribed
Since the early 1970s, loblolly pine (Pinus taeda L.) plantations have been established west of the native range of the species in the Ouachita Mountains of Oklahoma, using faster-growing seed sources from coastal North Carolina (NCC) rather than Oklahoma or Arkansas (O/A). Although the NCC sources outperform O/A sources early in stand development, it is not known how these provenances will perform later in stand development w...