Technical Note: Multispectral lidar time series of pine canopy chlorophyll content
| Autor: | T. Hakala, O. Nevalainen, S. Kaasalainen, R. Mäkipää |
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| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: | |
| Zdroj: | Biogeosciences, Vol 12, Iss 5, Pp 1629-1634 (2015) |
| Druh dokumentu: | article |
| ISSN: | 1726-4170 1726-4189 |
| DOI: | 10.5194/bg-12-1629-2015 |
| Popis: | We present an empirical application of multispectral laser scanning for monitoring the seasonal and spatial changes in pine chlorophyll (a + b) content and upscaling the accurate leaf-level chlorophyll measurements into branch and tree level. The results show the capability of the new instrument for monitoring the changes in the shape and physiology of tree canopy: the spectral indices retrieved from the multispectral point cloud agree with laboratory measurements of the chlorophyll a and b content. The approach opens new prospects for replacing destructive and labour-intensive manual sampling with remote observations of tree physiology. |
| Databáze: | Directory of Open Access Journals |
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