Journal of Forest Science, 2023 (vol. 69), issue 7
Pathogenicity of the entomopathogenic fungi against Myllocerus fotedari Ahmad, 1974 (Coleoptera: Curculionidae) under laboratory conditions in IndiaOriginal Paper
Shaziya Gull, Ahmad Tariq, Abdul Lateef Khanday, Sureshan Pavittu Meethal, Gowhar Rashid
J. For. Sci., 2023, 69(7):277-286 | DOI: 10.17221/10/2023-JFS 
The weevil, Myllocerus fotedari Ahmad, 1974 (Coleoptera: Curculionidae) is widely recognised as one of the major walnut pests. Fungal pathogens have shown great potential for the management of some pest species. In the present study, the efficacy of three entomopathogenic fungi, namely Beauveria bassiana (Balsamo) Vuillemin, Metarhizium anisopliae sensu lato (Metchnikoff) Sorokin and Lecanicillium lecanii (Zimmerman) Zare and Gams were evaluated against the weevil, M. fotedari, under laboratory conditions. Each fungal suspension contained 1.0 × 109 spores of fungi in 1 mL. The experiment comprised of five treatments...
Assessment of aboveground biomass and carbon stock of subtropical pine forest of PakistanOriginal Paper
Nizar Ali, Muhammad Saad, Anwar Ali, Naveed Ahmad, Ishfaq Ahmad Khan, Habib Ullah, Areeba Binte Imran
J. For. Sci., 2023, 69(7):287-304 | DOI: 10.17221/125/2022-JFS
The presented study estimated the aboveground biomass (AGB) of Pinus roxburghii (chir pine) natural forests and plantations, and created biomass maps using a relationship (regression model) between AGB and Sentinel-2 spectral indices. The mean AGB and BGB (belowground biomass) of natural forests were 79.54 Mg·ha–1 and 20.68 Mg·ha–1, respectively, whereas the mean AGB and BGB of plantations were 94.48 Mg·ha–1 and 24.56 Mg·ha–1, respectively. Correlation showed that mean diameter at breast height (DBH) and mean...
Assessment of the Ellenberg quotient as a practical tool for vertical vegetation zonationOriginal Paper
Petr Dujka, Antonín Kusbach
J. For. Sci., 2023, 69(7):305-316 | DOI: 10.17221/133/2022-JFS
The Ellenberg quotient (EQ) is a climate index defined as a ratio of the hottest month's temperature and the average annual precipitation sum. The quotient indirectly expresses the relationship between climate and vegetation, and its application is related to the ecological niche of Fagus sp. Although the quotient was curated on the grounds of field research primarily on German vegetation, the possibilities of its utilisation are not limited to the Central European region. The objective of this study is (i) to compare the EQ values calculated for the forest vegetation zones in the Czech Republic with the published data using...
A pilot study of continuous cover forestry in boreal forests: Do remaining trees affect forwarder productivity?Short Communication
Jussi Manner, Back Tomas Ersson
J. For. Sci., 2023, 69(7):317-323 | DOI: 10.17221/44/2023-JFS
According to the literature, forwarding productivity depends chiefly on log concentration, the number of assortments, mean log volume, load-size, slope, and extraction distance. However, there is not much scientific knowledge available on forwarding in continuous cover forestry (CCF) in boreal forests, nor whether the presence of remaining trees actually affects forwarding productivity. Thus, the objective of our study was to isolate the effect of remaining trees (i.e. stand density) on forwarding productivity during CCF, specifically selection cutting. The results showed that productivity was explained mainly by the log concentration, while...