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Seedlings and young trees of Pinus sylvestris were grown in outdoor fumigation chambers at 5 and 150 mu g SO2/m3 (approx.). The higher SO2 concn. redu...
Read moreWoodland ectomycorrhizal (ECM) fungal species declined considerably in the Netherlands in the late 20th century, mainly due to raised levels of atmosp...
Read moreSamples taken at Cedar Creek, Minnesota, showed that the above-ground parts of cattail [Typha angustifolia] and maize ecosystems contained much the sa...
Read moreA survey was conducted to determine the distribution and population size estimates of beavers (Castor fiber) along the Rivers Exe and Taw, UK, in Febr...
Read moreA 'simulator' is described, which integrates measurements of light intensity within a forest canopy in order to estimate the total amount of CO2 fixed...
Read moreA new field technique to estimate photosynthesis is described. It relies on describing direct and diffused light fluxes within the canopy, and photosy...
Read moreWetlands, and the species that rely upon them, are under significant threat world-wide, with wetlands often being completely removed or drastically al...
Read moreThe responses of Auchenorhyncha to management by cutting of calcareous Arrhenatherum-dominated grassland were examined in a field experiment in easter...
Read moreA mathematical model of the dynamics of a virus disease in a perennial plant population was developed. The population was divided into healthy, latent...
Read moreThe rate of increase of Erysiphe graminis f. sp. hordei, in the stands grown in small field plots, was directly related to the proportion of barley in...
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