To assess the possible impact of transgenic poplar plantations on the ecosystem, we analyzed the frequency and distance of gene flow from a mature male transgenic Populus nigra carried Bacillus thuringiensis toxin gene (Bt-OE poplar) plantation, and the survival of Bt-OE poplar seeds as well. The resultant Bt-OE poplar seeds occurred at a frequency from ~0.15% at 0 m to ~0.02% at 500 m far away...

Quantitative changes in foliar chemistry in response to UV-B radiation are frequently reported but less is known about the qualitative changes in putative UV-screening compounds. It has also not been conclusively shown whether qualitative differences in screening compounds or differences in localization patterns influence the sensitivity of plants to damage from UV-B radiation and there is some...

[1] Hydraulic resistance of riparian forests is an unknown but important term in flood conveyance modeling. Lidar has proven to be a very important new data source to physically characterize floodplain vegetation. This research outlines a recent campaign that aims to retrieve vegetation fluid resistance terms from airborne laser scanning to parameterize trunk roughness. Information on crown cha...

BACKGROUND Feedstock cost is a substantial barrier to the commercialization of lignocellulosic biorefineries. Poplar grown using a short rotation coppice (SRC) system has the potential to provide a low-cost feedstock and economically viable sugar yields for fuels and chemicals production. In the coppice management regime, poplars are harvested after 2 years' growth to develop the root system an...

in this study, compressed poplar wood was used to improve the strengths of wooden chairs. these chairs were compared to chairs made from uncompressed poplar wood. wooden chairs were assembled with two types of traditional joints including mortise and tenon and wooden pins joints. the ultimate force was applied from the front to the back of the seat, were recorded according to american library a...

A wildfire occurred in Shawnee State Forest located southern Ohio that consumed 1215 hectares. Based on earlier forest inventories it was known paulownia (Paulownia tomentosa), a non-native invasive tree species, the forest. The objective of this study to determine if heavily colonized areas two years after fire where burn occurred, and its presence had negative impact regeneration (<137 cm ...

Atmospheric deposition is an important pathway for moisture, nutrient, and pollutant exchange among the atmosphere, forest, and soils. Previous work has shown the importance of proximity to the forest edge to chemical fluxes in throughfall, but far less research has considered stemflow. This study examined the difference in acid neutralization capacity (ANC) of stemflow of nineteen Liriodendron...

Abstract Aims Cropland agroforestry systems are land-use with numerous environmental advantages over monoculture croplands including promotion of soil life. This study aimed to investigate tree-species and tree-distance effects on biota in a temperate system. Methods Our was conducted at paired alley-cropping cropland The tree rows the system comprised blocks poplar Fritzi Pauley, Max 1 or blac...