- Tytuł:
-
Średnia biomasa osobnicza zgrupowań biegaczowatych w produkcyjnym cyklu drzewostanów bukowych w Dolinie Ruhry (zachodnie Niemcy)
Mean individual biomass of carabid assemblages in the productive cycle of beech forests in the Ruhr Valley (Western Germany) - Autorzy:
- Schreiner, A.
- Powiązania:
- https://bibliotekanauki.pl/articles/1006304.pdf
- Data publikacji:
- 2012
- Wydawca:
- Polskie Towarzystwo Leśne
- Tematy:
-
lesnictwo
Dolina Ruhry
drzewostany bukowe
owady
biegaczowate
Carabidae
lownosc
srednia biomasa osobnicza
carabidae
mib
beech forest
succession
logistic growth - Opis:
- Number of carabid beetles, length of C. violaceus elytra and MIB of all carabids were studied subsequent to pitfall−trapping in 14 beech stands of increasing age (1−165 years) in Western Germany. The beech stands seemed to offer fairly constant feeding conditions for C. violaceus (and relatively small decrease in rather low level of degradation in the plantation). In total, 5,536 carabid individuals were trapped, which revealed significant increase of MIB (from 156.88 to 733.63 mg) following the logistic growth function. Due to incomplete degradation of the stands (on 'rich' soil and after using specific beech−harvesting techniques), there is a high baseline MIB at t=0 and an early onset of regenerative succession. The curve's gradient is steep and MIB reaches final value of about 650 mg in timber stands. Such high value may be explained by the good quality of loam soils in the area under study. In conclusion, logistic MIB function was calculated that describes regenerative beech succession on 'rich' soil and may help foresters to identify areas of disturbed succession.
- Źródło:
-
Sylwan; 2012, 156, 11; 833-842
0039-7660 - Pojawia się w:
- Sylwan
- Dostawca treści:
- Biblioteka Nauki
Artykuł