Evaluating the growth basal area method as a tool for estimating site productivity in uneven-aged ponderosa pine stands
نویسندگان
چکیده
ii Acknowledgements iii Table of
منابع مشابه
A Functional Comparison of Productivity in Even-Aged and Multiaged Stands: A Synthesis for Pinus ponderosa
The relative productivity of even-aged and uneven-aged or multiaged stands is a frequently debated topic in silviculture and forestry. Nearly all previous comparisons have been empirical growth studies, simulations of stand growth, or economic analyses based on differences in stem volume production. Both even-aged and multiaged systems are highly variable and the large number of variables and a...
متن کاملEffects of thinning, prescribed burning, and burning season on the physiological performance of ponderosa pine
Low elevation ponderosa pine (Pinus ponderosa Dougl. ex. Laws.) forests of the northern Rocky Mountains historically experienced frequent, low intensity fires that maintained open, uneven-aged stands. A century of fire suppression has led to denser ponderosa pine forests with higher competition for resources, higher tree stress, and greater risk of insect attack and stand destroying fire. Activ...
متن کاملLack of Fire Has Limited Physiological Impact on Old-Growth Ponderosa Pine in Dry Montane Forests of North-Central Idaho
Reduced frequency of fire in historically fire-adapted ecosystems may have adverse effects on ecosystem structure, function, and resilience. Lack of fire increases stand density and promotes successional replacement of seral dominant trees by late-successional, more shade-tolerant species. These changes are thought to increase competition for limited resources among trees and to increase physio...
متن کاملDisturbance from the Initial Harvest Implementing Uneven-aged Silviculture in a Pine-hardwood Stand in Southwestern Mississippi’
Logging disturbance is important in uneven-aged stands because harvests are frequent, merchantable trees are retained, and regeneration may be present. Logging disturbance was monitored during the establishment of a study testing the application of uneven-aged silvicufture in an irregularly aged, pine-hardwood stand. Disturbances were: (1) seedbed conditions averaging 56, 16, 9, and 17 percent ...
متن کاملRehabilitation of Understocked Loblolly- Shortleaf Pine Stands- III. Natural Stands Cutover 15 Years Previously but Unmanaged
Plots in an unmanaged loblolly-shortleaf pine (Pinus taeda L.-P. echinata Mill.) stand that had been cutover I5 yrpreviously were established to representfive stocking levels: 10, 20, 30, 40, and 50%. The stand was on a good site (site indexLob = 90 ft at 50 yr) and had uneven-aged character. Two competition control treatments (none and individual tree release using herbicide) were also assigne...
متن کامل