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The spatial heterogeneity of water uptake by fine roots under field conditions was analyzed in situ with miniature sap flow gauges in a mature beech-oak-spruce mixed stand. Sap flow rate (J), sap… Continue Reading
On a mesure, in situ, avec des sondes miniaturisees de flux de seve, pendant 11 jours consecutifs, l'absorption d'eau par les extremites des racines de sujets adultes de chene, hetre et epicea.… Continue Reading
The evaluation uses the longest available time series for beech and oak defoliation in Germany. The data from Hesse, starting from 1984, show a typical pattern: for the first 12 years, a continuous… Continue Reading
In the 1970s unexpected forest damages, called “new type of forest damage” or “forest decline”, were observed in Germany and other European countries. The Federal Republic of Germany and the German… Continue Reading
The Transmission laser welding is a relatively new method of joining thermoplastic materials. A laser beam in the near infrared region of the spectrum will pass through thermoplastics yet will be… Continue Reading