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Remote Sensing
Volume 14
Issue 6
10.3390/rs14061441
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Communication

Neighbourhood Species Richness Reduces Crown Asymmetry of Subtropical Trees in Sloping Terrain

by
Maria D. Perles-Garcia
1,2,*,
Matthias Kunz
3,
Andreas Fichtner
4,
Nora Meyer
3,
Werner Härdtle
4 and
Goddert von Oheimb
3
1
German Centre for Integrative Biodiversity Research (iDiv), 04103 Leipzig, Germany
2
Institute of Biology/Geobotany and Botanical Garden, Martin Luther University Halle-Wittenberg, 06108 Halle (Saale), Germany
3
Institute of General Ecology and Environmental Protection, Technische Universität Dresden, 01737 Tharandt, Germany
4
Institute of Ecology, Leuphana University of Lüneburg, 21335 Lüneburg, Germany
*
Author to whom correspondence should be addressed.
Remote Sens. 2022, 14(6), 1441; https://doi.org/10.3390/rs14061441
Submission received: 22 February 2022 / Revised: 12 March 2022 / Accepted: 14 March 2022 / Published: 16 March 2022
(This article belongs to the Special Issue Remote Sensing Monitoring of Tropical Forest Disturbance and Dynamics)
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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.
Keywords: BEF-China; biodiversity-ecosystem functioning; crown asymmetry; crown complementarity; forestry; LiDAR; sloping terrain; terrestrial laser scanning BEF-China; biodiversity-ecosystem functioning; crown asymmetry; crown complementarity; forestry; LiDAR; sloping terrain; terrestrial laser scanning

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MDPI and ACS Style

Perles-Garcia, M.D.; Kunz, M.; Fichtner, A.; Meyer, N.; Härdtle, W.; von Oheimb, G. Neighbourhood Species Richness Reduces Crown Asymmetry of Subtropical Trees in Sloping Terrain. Remote Sens. 2022, 14, 1441. https://doi.org/10.3390/rs14061441

AMA Style

Perles-Garcia MD, Kunz M, Fichtner A, Meyer N, Härdtle W, von Oheimb G. Neighbourhood Species Richness Reduces Crown Asymmetry of Subtropical Trees in Sloping Terrain. Remote Sensing. 2022; 14(6):1441. https://doi.org/10.3390/rs14061441

Chicago/Turabian Style

Perles-Garcia, Maria D., Matthias Kunz, Andreas Fichtner, Nora Meyer, Werner Härdtle, and Goddert von Oheimb. 2022. "Neighbourhood Species Richness Reduces Crown Asymmetry of Subtropical Trees in Sloping Terrain" Remote Sensing 14, no. 6: 1441. https://doi.org/10.3390/rs14061441

APA Style

Perles-Garcia, M. D., Kunz, M., Fichtner, A., Meyer, N., Härdtle, W., & von Oheimb, G. (2022). Neighbourhood Species Richness Reduces Crown Asymmetry of Subtropical Trees in Sloping Terrain. Remote Sensing, 14(6), 1441. https://doi.org/10.3390/rs14061441

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