Vegetation monitoring of former mining areas in the rubble trenches Gseng and Weissenbachl (1. Replay)

The vegetation of 35 sample areas in the Gsenggraben (initial survey: 2012) has been reassessed and its development assessed. Especially in the area of the former mining or plant area in the lowest section, an accelerated succession in the direction of purple and lavender-rich pioneer bushes took place. In the middle section (environmental gseng source), the refilled debris stream partly caused regressive development as a result of overriding. The uppermost part, little affected by the former mining, has hardly changed as expected. The vegetation development of 35 plots situated in the Gseng Canyon, which were set in 2012, was Reexamined. Especially in the lower section we find a noticeable succession towards pioneer willow shrubbery with Salix Eleagnos and S. purpurea. In the middle section, the revived scree debris is pushing forward and has already buried several plots. The upper section, which has never been much affected by the former mining, shows only minor change.对格森谷（Gsenggraben）内35个样地的植被开展了重新评估，该区域样地的初始调查于2012年完成，并对其植被演替进程进行了研判。尤其在最下段的原采矿作业与厂区区域，植被正向以紫花、淡紫色植物占优的先锋灌丛方向发生加速演替。中段（格森水源区域）的回填碎石流因覆盖碾压作用，部分引发了植被的逆行演替。受此前采矿活动影响极微的最上段区域，则如预期般几乎未发生变化。 2012年设立的格森峡谷（Gseng Canyon）内35个样地的植被演替过程再次得到评估。尤其在下段区域，植被正向以银叶柳（Salix eleagnos）和紫柳（Salix purpurea）为优势种的先锋柳灌丛发生显著演替。中段区域的活化碎石堆持续推进，已掩埋了数个样地。此前几乎未受采矿活动影响的上段区域，仅发生了细微变化。