DIGITALNA ARHIVA ŠUMARSKOG LISTA
prilagođeno pretraživanje po punom tekstu
ŠUMARSKI LIST 11-12/2010 str. 34 <-- 34 --> PDF |
M. Cojzer, R. Brus: SPECIES COMPOSITION AND SUCCESSIONAL PATHWAYS ON ABANDONED ... Šumarski list br. 11–12, CXXXIV (2010), 581-591 Figure 2 DCA ordination plot of 52 vegetation samples. Samples are marked with the sym- bols denoting the treatment (Z – abandoned land, G – forest). First and second axes explain 11.6 % and 7.5 % of variability in species data, respectively. Slika 2.DCA ordinacija popisa označenih po tretmanima (Z – zemljište u zarastanju, G – šuma). Prva os pojašnjava 11,5 % a druga 7,5 % varijabilnosti podataka o distribuciji vrsta po popisima. cies per plot between forest and abandoned land at p<0.05. But there was a significant difference in the average number of shrub species per plot. In forest there were mainly (91.5 %) tree species individuals, while shrub species represent only 8.5 %. On abandoned land the proportion was more balanced, where tree species represent 53.0 %, and shrub species 47.0 % of the share. In the forest area, Fagus sylvatica was the most abundant tree species, followed by Carpinus betulus and Quercus petraea. For shrubs, Sambucus nigra was the dominant species, followed by Corylus avellana and Cornus sanguinea. On abandoned land, Carpinus betulus was the dominant tree species, followed by Alnus glutinosa and Acer pseudoplatanus. Among the shrub species, Cornus sanguinea was the most abundant, followed by Corylus avellana and Prunus spinosa. Table 2 The average number of species per plot separately according to treatments (Z - abandoned land, G - forest) Tablica 2. Prosječan broj vrsta po jedinici popisa (plohi) s obzirom na tretmane (Z - napušteno zemljište, G - šuma) All species Tree species Shrub species Sve vrste Vrste drveća Vrste grmlja Average F p Average F p Average F p Treatments Count number number number Tretmani Broj ploha per plot Prosječan broj na plohi per plot Prosječan broj na plohi per plot Prosječan broj na plohi G 15 12.3 9.7 2.7 Z 37 13.7 9.2 4.4 G x Z 1.01 0.312 0.16 0.691 8.74 0.005 Table 3 The density of individuals per ha separately according to treatments (Z - abandoned land, G - forest) Tablica 3. Gustoća jedinki na hektar, prikazano po tretmanima (Z - napušteno zemljište, G - šuma) Treatments Tretmani Count Broj ploha All species Sve vrste Tree species Vrste drveća Shrub species Vrste grmlja Average number of individuals Prosječan broj jedinki (ha-1) F p Average number of individuals Prosječan broj jedinki (ha-1) F p Average number of individuals Prosječan broj jedinki (ha-1) F p G 15 23906.3 21884.0 2022.3 Z 37 19447.2 10301.2 9146.0 G x Z 1.17 0.203 12.02 0.001 17.32 <0.001 Transformation Transformacija Sqrt (number of individuals all species ha-1) Korijen(broj jedinki svih vrsta na ha) Sqrt (number of individuals tree species ha-1) Korijen (broj jedinki vrste drveča na ha) Sqrt (number of individuals shrub species ha-1) Korijen (broj jedinki vrste grmlja na ha) |