| Content Provider | Springer Nature : BioMed Central |
|---|---|
| Author | Podlaski, Rafał |
| Abstract | Key message From 1973 to 1991, Polish SO 2 emissions above 3250 Gg/year resulted in a decline of fir Abies alba Mill. After stresses connected with these emissions, five main diameter at breast height (DBH) structural types were described. This type of heterogeneous forest structure is supposed to increase forest resistance and resilience to abiotic, biotic and anthropogenic disturbances. Context The analyses of forest structure are important under the current scenario of global change, since heterogeneous structures allow for better responses to disturbances. Forests with more complex structures should present greater vitality. Aims The main hypotheses were as follows: (1) the temporal changes of atmospheric SO2 emissions caused (a) the abrupt changes in the tree DBH radial increment and (b) the death of fir trees; and (2) atmospheric SO2 emissions and related fir decline and recovery processes ultimately result in the development of stands characterised by diverse DBH structures. Methods Radial growth trends of 49 and 215 fir trees in the older and younger generations, respectively, and 85 dead fir trees were evaluated. Using data collected in 32 stands, the DBH structural types were identified, and the shapes of these types were illustrated. Results The structural diversification of forest patches may influence forest resistance and resilience to disturbances; five main structural types were identified: ML1 and ML2 represent DBH distributions of multi-layered stands, and OS, TS1 and TS2 represent DBH distributions of one- and two-storied stands. Conclusion Structural diversity of forests was a response to SO2 emissions; fir trees had the ability to increase their radial growth, although there were still high SO2 emissions. |
| Related Links | https://annforsci.biomedcentral.com/counter/pdf/10.1007/s13595-018-0777-8.pdf |
| Ending Page | 15 |
| Page Count | 15 |
| Starting Page | 1 |
| File Format | HTM / HTML |
| DOI | 10.1007/s13595-018-0777-8 |
| Journal | Annals of Forest Science |
| Issue Number | 4 |
| Volume Number | 75 |
| Language | English |
| Publisher | BioMed Central |
| Publisher Date | 2018-11-20 |
| Access Restriction | Open |
| Subject Keyword | Forestry Wood Science & Technology Forestry Management Tree Biology Environment Forest structural heterogeneity Tree rings Finite mixture models Structural types Sulphur dioxide emissions |
| Content Type | Text |
| Resource Type | Article |
| Subject | Forestry Ecology |
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