Susceptibility of Lakeside Phragmites Reeds to Environmental Stresses: Examples from Lake Constance-Untersee (SW-Germany)
نویسنده
چکیده
The lakeside border of Phragmites reeds is under the control of many environmental factors, among which the flooding height and the degree of mechanical load by waves and washes are the most prominent. Examples from Lake Constance-Untersee show that the reed front retreats under enhanced stresses. Models are presented that describe the susceptibility of lakeside reeds to mechanical damage and to flooding events. A monitoring programme which ran from 1984/85 to 1992/93 showed a slow lakeward progression of the reeds in a decade of abnormally low water conditions.
منابع مشابه
Effect of management on the mechanical stability of lakeside reeds in Lake Constance-Untersee
1. Lakeside Phragmites australis reed beds were mown or bumt in winter as a eountermeasure against the die-back of reeds in Lake Constanee-Untersee. 2. The effeet of winter harvesting and buming on the meehanieal resistanee of reeds against waves and washes was investigated using the PMR model. This model postulates that the pereentage of meehanieally damaged shoots of a reed stand is a monoton...
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