Stand development involves changes in stand structure over time. Knowledge of stand development patterns is crucial for effective forest management, especially of southern bottomland hardwood forests. These forests contain more than 70 tree species, many of which have commercial timber and wildlife habitat value. I n this paper, current techniques i n stand development research are reviewed. Em...

Prescribed burning is used as a management tool on national forests in the Southeastern United States to maintain oak (Quercus spp.) -dominated forest or woodland habitat. Few studies have examined response to burning at the stand, plot, and tree level. We documented red maple (Acer rubrum) response to dormant-season prescribed burns and the relationship with fire characteristics. At the stand ...

The forests in Sardasht area in the West Azarbaijan Province were quantitatively studied in this research. Based on Importance Value Index, in general, two types of forests have been identified: Quercus libani Oliv. in the northern, northeastern and northwestern aspects and Quercus brantii Lindl. in the southern, southeastern and southwestern and eastern aspects. The mean of vegetation crown pe...

Understanding plant–plant facilitation is critical for predicting how plant community function will respond to changing disturbance and climate. In longleaf pine (Pinus palustris Mill.) ecosystems of the southeastern United States, understanding processes that affect pine reproduction is imperative for conservation efforts that aim to maintain ecosystem resilience across its wide geographic ran...

D. M. Rizzo, Department of Plant Pathology, University of California, Davis 95616; M. Garbelotto, Department of Environmental Science, Policy and Management, Ecosystem Science Division, University of California, Berkeley 94720; J. M. Davidson and G. W. Slaughter, Department of Plant Pathology, University of California, Davis; and S. T. Koike, University of California Cooperative Extension, 1432...

This paper deals with comparative studies of bending behavior untreated and modified European beech (Fagus sylvatica L.), oak (Quercus spp.) black locust (Robinia pseudoacacia L.). The modification the woods included both ammonia treatment in combination mechanical densification. For each treatment, pure gaseous was used. investigations were conducted by means three-point tests. bulk density in...

This scientific paper examines the impact of climate change on spread and survival invasive species Corythucha arcuata Say, 1832 (oak lace bug, or OLB) in Romania. The OLB is native to Eastern USA Canada, its habitat, it coexists with minimal preferred host plant Quercus. However, Europe, high density causes early defoliation, slowing tree growth. As Quercus spp. a keystone species, European fo...