Pine-hardwood ecosystems in the southern Appalachians are in a serious state of decline due to the combined effects of fire exclusion, abusive land practices, and drought related insect infestations. A silvicultural treatment termed "fell and burn" is applied as a best management practice (BMP) in an attempt to restore the diversity and productivity of these ecosystems. A multi-investigator stu...

During the past century, the biomass of woody species has increased in many grassland and savanna ecosystems. As many of these species fix nitrogen symbiotically, they may alter not only soil nitrogen (N) conditions but also those of phosphorus (P). We studied the N-fixing shrub Dichrostachys cinerea in a mesic savanna in Zambia, quantifying its effects upon pools of soil N, P, and carbon (C), ...

In the southeastern United States, many forest managers are interested in restoring longleaf pine (Pinus palustrisMill.) to upland sites that currently support loblolly pine (Pinus taeda L.). We quantified the effects of four canopy treatments (uncut Control; MedBA, harvest to 9 m2·ha−1; LowBA, harvest to 5 m2·ha−1; and Clearcut) and three cultural treatments (NT, no treatment; H, herbicide rel...

In s ix 8to 1 1-year-old plantat ions of longleaf pine (Pinus palus tr i s Mill.) near Aiken, S.C., responses of understory vegetation, light, and soil watcr availability and litterfall were studied in relation to pine thinning (May 1994), herbicida1 treatment of nonpine woody vegetat ion (1995-1996), or the combined treatments (treatment responses described below are in absolute units) . Treat...

submission form for the 10 th ISPMSRS (March 12-14, 2007, Davos, CH) Forest reflectance modeling in the Arctic region: results from a case study in Finland 1,2 Rautiainen, Miina; 3 Stenberg, Pauline; 4 Manninen, Terhikki; 2 Mõttus, Matti; 5 Voipio, Pekka 1 Department of Forest Resources Management, Finland 2 Tartu Observatory, Estonia 3 Department of Forest Ecology, University of Helsinki, Finl...

in arid and semi-arid ecosystems, shrubs may act as fertility islands but theireffect may vary depending on their morphology and ecological impacts. this research wasaimed to study effect of three shrubs scariola orientalis, astragalus heratensis, and rosapersica on soil properties and on the microclimate conditions (temperature, luminance, andsoil moisture) of their understory in the steppe ra...