Next Article in Journal
Analysis of Microbial Diversity and Greenhouse Gas Production of Decaying Pine Logs
Previous Article in Journal
Changes in Soil Biochemical Properties in a Cedar Plantation Invaded by Moso Bamboo
Article Menu
Issue 7 (July) cover image

Export Article

Open AccessCommunication
Forests 2017, 8(7), 223; doi:10.3390/f8070223

Vitality Assessment of Visually Healthy Trees in Estonia

Institute of Forestry and Rural Engineering, Estonian University of Life Sciences, Kreutzwaldi 5, Tartu 51014, Estonia
*
Author to whom correspondence should be addressed.
Academic Editors: Robert A. Blanchette and Timothy A. Martin
Received: 4 April 2017 / Revised: 16 June 2017 / Accepted: 23 June 2017 / Published: 26 June 2017
View Full-Text   |   Download PDF [1400 KB, uploaded 27 June 2017]   |  

Abstract

Root rots are considered the most important forest diseases in Estonia, causing serious concern in forest management. The majority of trees infected by forest pathogens lack easily-detectable visual symptoms, making it difficult to detect decay in a tree. We assessed the general health condition of visually healthy trees in intensively managed Norway spruce (Picea abies L. Karst.) and Scots pine (Pinus sylvestris L.) stands with resistography in order to identify trees infected by root rot. We found that 8.0% of Norway spruces and 1.6% of Scots pines had well-developed internal decay on the root collar regardless of having no external symptoms of root rot. Visually healthy trees growing on permanent forest land experienced more decay than trees growing on former agricultural land. The radial proportion of decay of damaged trees was 61% in Norway spruces and 35% in Scots pines. The results suggest that resistography can be used as a reliable method for tree vitality assessment. View Full-Text
Keywords: Norway spruce; Scots pine; forest health; root rot; resistography; mortality Norway spruce; Scots pine; forest health; root rot; resistography; mortality
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Allikmäe, E.; Laarmann, D.; Korjus, H. Vitality Assessment of Visually Healthy Trees in Estonia. Forests 2017, 8, 223.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Forests EISSN 1999-4907 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top