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Title: Neighbourhood species richness reduces crown asymmetry of subtropical trees in sloping terrain
Author(s): Perles-Garcia, Maria D.
Kunz, Matthias
Fichtner, Andreas
Meyer, Nora
Härdtle, Werner
von Oheimb, Goddert
Issue Date: 2022
Type: Article
Language: English
Abstract: Reforestation in sloping terrain is an important measure for soil erosion control and sustainable watershed management. The mechanical stability of such reforested stands, however, can be low due to a strong asymmetric shape of tree crowns. We investigated how neighbourhood tree species richness, neighbourhood pressure, tree height, and slope inclination affect crown asymmetry in a large-scale plantation biodiversity-ecosystem functioning experiment in subtropical China (BEF-China) over eight years. We took the advantage of terrestrial laser scanning (TLS) measurements, which provide non-destructive, high-resolution data of tree structure without altering tree interactions. Neighbourhood species richness significantly reduced crown asymmetry, and this effect became stronger at steeper slopes. Our results suggest that tree diversity promotes the mechanical stability of forest stands in sloping terrain and highlight the importance of TLS-data for a comprehensive understanding of the role of tree diversity in modulating crown interactions in mixed-species forest plantations.
Open Access: Open access publication
License: (CC BY 4.0) Creative Commons Attribution 4.0(CC BY 4.0) Creative Commons Attribution 4.0
Sponsor/Funder: Publikationsfonds MLU
Journal Title: Remote sensing
Publisher: MDPI
Publisher Place: Basel
Volume: 14
Issue: 6
Original Publication: 10.3390/rs14061441
Appears in Collections:Open Access Publikationen der MLU

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