Free Access
| Issue |
Ann. For. Sci.
Volume 67, Number 8, December 2010
|
|
|---|---|---|
| Article Number | 800 | |
| Number of page(s) | 7 | |
| Section | Opinions and Comments | |
| DOI | https://doi.org/10.1051/forest/2010052 | |
| Published online | 29 October 2010 | |
Online material
Appendix A
Stop-words filtered out of the character strings extracted from the titles of our study sample.
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Appendix B
Coincidence of (A) the decreasing trend word “SO-2” and the reduction of modelled critical loads in Europe until 2005 (=grey area; Hettelingh et al., 2005), and (B) the increasing trend word “boreal” and climate warming (=grey area; IPCC, 2007). Fitted curves of relative trend word frequencies (solid symbols) and temperature anomalies (asterisks) are calculated by cubic smoothing splines (df = 4). |
© INRA, EDP Sciences, 2010