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The size, composition and seasonal and depth-related variations in the soil seed bank of a former chalk grassland ley were determined at monthly inter...Read more
Weeds play an important role in arable and horticultural habitats, and models are being developed to improve our understanding of their population dyn...Read more
Constant temperatures within the range 11-23 C had no significant effect upon the germination of Avena fatua, but higher temperatures appreciably redu...Read more
Deformations of Engelmann spruce (Picea engelmannii) and subalpine fir (Abies lasiocarpa) trees were surveyed for the purpose of determining climatic ...Read more
Throughout arid regions of the world, groundwater is extracted for human population centres. In the Great Basin and Range region of the USA, we lack b...Read more
Recent legislation designed to reduce air pollution has restricted Californian rice-farmers from burning rice stubble after harvest. Intentional flood...Read more
(S. & F. XXVIII ). Soil-moisture changes were followed for three years; the plantations varied in age from 20 to 32 years and were on soils d...Read more
Large increases in the generation of electricity using marine renewable energy (MRE) are planned, and assessment of the environmental impacts of novel...Read more
Chemical analyses of spoil from twenty sites showed a considerable range of variation in pyrite content and acid neutralizing capacity (calcium carbon...Read more
The life history of Leontice leontopetalum was studied under field and controlled conditions in connection with its survival in ploughed fields. At ge...Read more