Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 2 of 2
Full-Text Articles in Life Sciences
Historical Reflections On The Arkansas Cross Timbers, Don C. Bragg
Historical Reflections On The Arkansas Cross Timbers, Don C. Bragg
Journal of the Arkansas Academy of Science
Kiichler's original map of potential natural vegetation suggested that the eastern-most extension of the "Cross Timbers" oak-dominated woodland reached into extreme western Arkansas. Recent investigations have found possible old-growth Cross Timber communities in narrow strips along steep, rocky sandstone and shale ridges near Fort Chaffee and Hackett. However, many decades of Euroamerican intervention have altered vegetation composition and structure in west-central Arkansas, making field evaluation difficult. Fortunately, historical accounts of the area provide considerable supporting documentation. General Land Office surveyors, for instance, traversed this portion of western Arkansas before 1850. They reported many ridges and slopes dominated by grassy, stunted …
Stand-Level Green Biomass Equations For Sawtimber-Sized Loblolly Pine In Arkansas, Paul F. Doruska, David W. Patterson, Travis E. Posey
Stand-Level Green Biomass Equations For Sawtimber-Sized Loblolly Pine In Arkansas, Paul F. Doruska, David W. Patterson, Travis E. Posey
Journal of the Arkansas Academy of Science
Loblolly pine (Pinus taeda L.) is commercially the most important timber species in southern Arkansas and the southern United States. Results of stand-level timber inventories have traditionally been reported in terms of volume, yet loblolly pine sawtimber is bought and sold based on biomass. A straight forward stand-level conversion from volume per hectare to biomass per hectare does not exist for Arkansas, thus complicating the valuation of standing loblolly pine sawtimber. Two equations were developed to predict stand-level, outside-bark, green biomass per unit area for loblolly pine stands in southern Arkansas. The merchantable sawlog equation presented herein explained approximately 95% …