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Published VersionCC BY V4.0, Open Access
Journal article
Impact of resin tapping on the radial growth and climate sensitivity of naturally- regenerated Pinus roxburghii (Chir pine) in Western Nepal
Trees, Forests and People, Vol.19, pp.1-10
2025
Abstract
The study investigated the effect of resin tapping on radial growth and climate sensitivity of naturally regenerated Pinus roxburghii (chirpine) in Western Nepal. We collected core samples (dbh>30cm) from the community forest in the Salyan district: 26 from tapped and 33 from untapped trees situated in similar climatic, topographic, and ecological conditions. A tree-ring width chronology spanning 52 years was developed for both tapped and untapped trees. Statistical analyses, such as Pearson correlation and t-test, were used. Results indicate the untapped trees exhibited significantly higher basal area increment (BAI: p < 0.05) than those of tapped trees, indicating that resin tapping negatively impacts tree growth. Furthermore, both tapped and untapped trees exhibited a positive correlation between radial growth and temperatures in May, June, July and August suggesting critical role of temperature in influencing the growth of Pinus roxburghii trees whether they have been tapped for resin or not. The rainfall in January, February, March, April, August, October, and December positively influenced the radial growth of both tapped and untapped trees, with only the rainfall in January having a significant effect on growth. Radial growth is impacted by the resin tapping while decreasing its recovery strength after stress as well. This study highlights the need for alternative resin-tapping practices that minimize negative impacts on tree growth. It also emphasizes the importance of considering rainfall and temperature patterns when planning tapping activities to ensure sustained resin production and promote tree health.
Details
- Title
- Impact of resin tapping on the radial growth and climate sensitivity of naturally- regenerated Pinus roxburghii (Chir pine) in Western Nepal
- Authors
- Bipin Bhattarai - Tribhuvan UniversityNarayan Prasad Gaire - Tribhuvan UniversityTek Maraseni - Univ Southern Queensland, Toowoomba, Qld 4350, AustraliaBishnu Prasad Devkota - Tribhuvan UniversityBadri Bhattarai - Tribhuvan UniversityShankar Tripathi - University of the Sunshine Coast, Queensland, Forest Research InstituteKamal Raj Aryal (Corresponding Author) - University of the Sunshine Coast, Queensland, School of Science, Technology and EngineeringHari Adhikari (Corresponding Author) - University of Helsinki
- Publication details
- Trees, Forests and People, Vol.19, pp.1-10
- Publisher
- Elsevier BV
- Date published
- 2025
- DOI
- 10.1016/j.tfp.2025.100795
- ISSN
- 2666-7193
- Copyright note
- © 2025 The Author(s). Published by Elsevier B.V. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).
- Data Availability
- Data will be made available on request.
- Grant note
- Forest Research and Training Center, Karnali Province, Nepal and the National Academy of Science and Technology.
- Organisation Unit
- Forest Industries Research Centre; School of Science, Technology and Engineering; Forest Research Institute
- Language
- English
- Record Identifier
- 991127505702621
- Output Type
- Journal article
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