Treesearch

Nontimber forest products (NTFPs) provide cultural ecosystem services for peoples throughout the United States and its affliated territories. Cultural ecosystem services of NTFPs are those tangible and intangible functions that contribute to the traditions, livelihoods, and wellbeing of social groups including, but not limited to, indigenous and minority communities (Daniel et al. 2012, Hernadez-Morcillo et al. 2013). The Millennium Ecosystem Assessment (2005) recognized six services of ecosystems necessary to support cultural landscapes and traditions: heritage values, cultural identity,...

Nontimber forest products (NTFPs) encompass a broad variety of edible, woodbased, decorative, and medicinal goods derived from various plant and fungus parts (Chamberlain et al. 1998). NTFPs provide signifcant economic benefts to users in the United States; however, many of these values have not been systematically researched or quantifed (Alexander et al. 2001). Interest in assessing the economic value, impact, and potential of NTFPs surged in the 1990s and early 2000s probably in part because of controversies over the impact of timber harvest on endangered species and other conservation...

Increases in temperature and changes in average rainfall will change conditions for wild and cultivated NTFPs. The increased variability in rainfall is likely to favor adaptable and invasive species. Even where forest cover is intact or agroforest cover is complex and continuous, heavy rainfall can cause mass wasting events that devastate watersheds.

Loblolly pine (Pinus taeda L.) plantations represent the largest surface of managed forest in the Southern United States. Over the last 3 decades, forest productivity has been increased as a result of intensive management and improved genetics. Many studies have shown the effects of fertilization and competition control in early ages (1 through 10) on yield of intensively managed loblolly pine stands. However, few studies have looked at the long-term effects of these practices on the inherent site productivity and carrying capacity. The Consortium for Accelerated Pine Plantation Studies...

To improve watershed quality, there was interest in converting a retired zoysiagrass (Zoysia spp.) sod farm in central Arkansas into hardwood forest. Six vegetation control options for glyphosate and sulfometuron methyl were tested for pre-planting vegetation control to foster water oak (Quercus nigra L.) and green ash (Fraxinus pennsylvanica Marshall) establishment while protecting water quality at the site. Including sulfometuron with glyphosate in a fall pre-planting application was the most effective for providing vegetation control through the first growing season after planting. A...

Since 1930, approximately 2.5 million ha have been disturbed by surface mining in theUnited States. On many mine sites reclaimed since the Surface Mining Control and Reclamation Act of 1977 bothcompacted soils and aggressive nonnative plant communities are common, and sites may require remediationin order to establish forests (Burger and others 2013). Planted grasses and legumes can compete strongly withplanted tree seedlings, and there is a need to identify herbaceous species that are compatible with reforestation(Franklin and others 2012). Browse damage to planted tree seedlings can be...

There has been an increase in loblolly pine production driven by forest management practices like intensive silviculture and improved genetics. Some reported yield gains have been modeled using metaregression mixed effects models accounting for the potential contribution of the four factors related to forest growth: age, site quality (environment), establishment culture and management, and stand intrinsic characteristics (genetics and initial planting density). The aim of this research was to describe a methodology that allows for the derivation of response equations from yield models for...

This study synthesizes published height growth measurements for a range of bottomland hardwood species commonly used in afforestation efforts in the Lower Mississippi Alluvial Valley (LMAV), including a variety of oak and non-oak species, from establishment up to 20–30 years of age. Over this time period, cottonwood outperforms all species, while red oaks (cherrybark, Nuttall, water, and willow), sweetgum, and sycamore show intermediate growth trends. Green ash and swamp chestnut oak show lower growth over the same period. In terms of site quality effects, heavier textured clay soils tend...

This work was intended originally to be simply a bibliography in which all sources were presented and listed under appropriate subject headings; where disagreements or other circumstances necessitated, works were to be cross-referenced to each other. Recent reviewers have urged a more active authorship in which I evaluated the literature and identified important issues concerning the species. This I have done with some trepidation, but also with enthusiasm. Where my own researches have yielded new ideas or summaries, I present them as well.The work comprises two Parts, (1) an introductory...