This The_database_of_Veps_readme.txt file was generated on 2022-02-05 by Ryzhkova Nina


GENERAL INFORMATION

1. Title of Dataset: The database of Veps Highland

2. Author Information
	A. Principal Investigator Contact Information
		Name: Drobyshev Igor
		Institution: Swedish University of Agricultural Sciences, Southern Swedish Forest Research Centre
		Address: PO Box 49, SE-230 53, Alnarp, Sweden,
		Email: igor.drobyshev@slu.se 

	B. Associate or Co-investigator Contact Information
		Name: Niklasson Mats
		Institution: Foundation Nordens Ark, Åby säteri
		Address: SE-456 93 Hunnebostrand, Sweden
		Email: mats.niklasson@nordensark.se

	C. Alternate Contact Information
		Name: Ryzhkova Nina
		Institution: Forest Research Institute of the Karelian Research Centre of the Russian Academy of Sciences
		Address: 11 Pushkinskaya St., 185910 Petrozavodsk, Republic of Karelia, Russia,
		Email: ryzhkova@krc.kareli.ru

3. Date of data collection (single date, range, approximate date): 1999, 2001 and 2004

4. Geographic location of data collection: Veps Highland, Leningradsky region, Russia
 


SHARING/ACCESS INFORMATION

1. Links to publications that cite or use the data: https://doi.org/10.1016/j.foreco.2022.120007

2. Was data derived from another source? NO

3. Recommended citation for this dataset: 
I.Drobyshev, N.Ryzhkova, M.Niklasson, A.Zhukov, I.Mullonen, G.Pinto, A.Kryshen'(2022) Data from: Marginal imprint of human land use upon fire history in a mire-dominated boreal landscape of the Veps Highland, North-West Russia. Dryad Digital Repository. https://doi.org/10.5061/dryad.x69p8czkf


DATA & FILE OVERVIEW

1. File List: Veps - site coordinates
AreaID - the name of the area where the samples were collected
SiteID - the name of the each site where the samples were collected
Coord_N & Coord_E - coordinates of each site

2. File List: Veps - fire dates
AreaID - the name of the area where the samples were collected
SiteID - the name of the each site where the samples were collected
TreeMasterID:
Position-TreeMasterID	Data	Remark			
1		VP	Veps
2		PS	Species (Pinus sylvestris)
3-5		site number	
6-7		tree number	
8		core ID (A, B, C.. 9)	
EventYear - the year when the fire was noted


METHODOLOGICAL INFORMATION

1. Description of methods used for collection/generation of data: 
See more details at https://doi.org/10.1016/j.foreco.2022.120007

2. Methods for processing the data: 
We air dried and sanded samples with progressively finer sandpapers with up to 400-grit to secure a clear view of the rings and fire scars under a binocular microscope. We cross-dated samples using the visual pointer year method (Stokes and Smiley, 1968). We relied on the pine pointer year chronology developed for the area of Veps Highland. To verify the dating, we correlated sample chronologies with a newly developed Scots pine ring-width chronology. To measure tree rings, we obtained high-resolution (2400–3200 dpi) digital images of the samples with a flatbed scanner and used Cybis AB CooRecorder and CDendro 9.0 software bundle to measure and crossdate the rings, using t-test as a proxy of crossdating success (Larsson, 2018). 
Dating of scars allowed us to associate the calendar years with (a) fire scars, (b) oldest and (c) youngest rings on each sample and to develop site-specific fire chronologies. 

3. People involved with sample collection, processing, analysis and/or submission: 
The samples were collected by Igor Drobyshev, Mats Niklasson and Maria Noskova