Published December 31, 2020 | Version v1
Dataset Open

Flat-bed scanner images and daily growth of Scots pine (Pinus sylvestris L.) roots data in SMEAR II Hyytiälä

  • 1. Department of Forest Sciences, University of Helsinki
  • 2. Department of Forest Sciences/Institute for Atmospheric Sciences and Earth System Research (INAR), University of Helsinki; Department of Forest Ecology and Management, Swedish University of Agricultural Sciences (SLU)
  • 3. Faculty of Science, Shinshu University
  • 4. Department of Forest Sciences/Institute for Atmospheric Sciences and Earth System Research (INAR), University of Helsinki
  • 5. Department of Forest Sciences/Institute for Atmospheric Sciences and Earth System Research (INAR), University of Helsinki; Finnish Meteorological Institute

Description

This zip-file contains

(1) the daily root scanner images of three flat-bed scanners during the growing season of 2018 in SMEAR II, Hyytiälä. 

The images were brightness adjusted by the Authors. The images were taken between 25.04.2018-01.10.2018. The missing images for scanner 2 due to connection errors: 27.05-28.05.2018 and 04.08.2018.  Missing dates for scanner 3: 29.08-02.09.2018 and 14.10.2018.

(2) daily_root_growth
We used 'Winrhizotron 2015a' software to analyze the daily root elongation data, divided by pioneer and fibrous roots, including daily active root number, and average daily elongation rate

(3) CASSIA_root
We estimated the growth phenology of aboveground tree organs, such as shoots, needles, buds and secondary xylem using the ‘Carbon Allocation Sink Source Interaction’ (CASSIA) model (Schiestl-Aalto et al. 2015). Simulated aboveground organs' data and our root data were combined in the same dataset.

(4) surface_area
Root surface area increase rate ( analyzed by 'Winrhizotron 2015a' software), divided by pioneer and fibrous roots

 

Files

root_elongation.zip

Files (1.3 GB)

Name Size Download all
md5:998e17e98e738ac0c9b4f7980e7677f4
1.3 GB Preview Download