Hidden gaps under the canopy: LiDAR-based detection and quantification of porosity in tree belts

Tree belts (TBs) as one of the agroforestry types, provide many ecosystem services (ESs), that reduce the negative environmental impact of agriculture and increase agricultural productivity. Unfortunately, the lack of quantitative and spatial information regarding TB properties, such as the porosity...

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Main Authors: Maciej M. Nowak, Katarzyna Pędziwiatr, Paweł Bogawski
Format: Article
Language:English
Published: Elsevier 2022-09-01
Series:Ecological Indicators
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S1470160X22007154
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author Maciej M. Nowak
Katarzyna Pędziwiatr
Paweł Bogawski
author_facet Maciej M. Nowak
Katarzyna Pędziwiatr
Paweł Bogawski
author_sort Maciej M. Nowak
collection DOAJ
description Tree belts (TBs) as one of the agroforestry types, provide many ecosystem services (ESs), that reduce the negative environmental impact of agriculture and increase agricultural productivity. Unfortunately, the lack of quantitative and spatial information regarding TB properties, such as the porosity expressed by gap fraction, often leads to insufficient information on the availability of ESs provided by TBs, such as windbreak efficiency, barrier effectiveness for soil erosion and ability to redistribute snow cover. Moreover, image data, which are usually used for the assessment of TB porosity, only provide 2D information. Therefore, we propose the first comprehensive method of TB porosity indicator estimation conducted by gap mapping using 3D LiDAR (Light Detection and Ranging) data. The method allows to diagnose the spatial structure of TBs necessary for reliable evaluation of ES availability. Detailed cross-section diagnostic graphs and TB silhouette maps showed the intra-TB variation of porosity and thus may support the decision making on the crop types and may lead to better predictions of agricultural production. Also, on a testing study area, we revealed that the proposed method is suitable to significantly improve the accuracy of vegetation volume estimation in TB. Such a detailed analysis of the inner TB structure may be used to maximize the positive effect of tree belts on agricultural production and therefore is a way towards the sustainable agriculture as well as better assessment of ES provided by tree belts.
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spelling doaj.art-77101a1c99274938a482ce99d33345802022-12-22T02:15:51ZengElsevierEcological Indicators1470-160X2022-09-01142109243Hidden gaps under the canopy: LiDAR-based detection and quantification of porosity in tree beltsMaciej M. Nowak0Katarzyna Pędziwiatr1Paweł Bogawski2Department of Systematic and Environmental Botany, Faculty of Biology, Adam Mickiewicz University in Poznań, ul. Uniwersytetu Poznańskiego 6, 61-614 Poznań, Poland; Biological Spatial Information Laboratory, Faculty of Biology, Adam Mickiewicz University in Poznań, ul. Uniwersytetu Poznańskiego 6, 61-614 Poznań, Poland; Corresponding author at: Department of Systematic and Environmental Botany, Faculty of Biology, Adam Mickiewicz University in Poznań, ul. Uniwersytetu Poznańskiego 6, 61-614 Poznań, Poland.Biological Spatial Information Laboratory, Faculty of Biology, Adam Mickiewicz University in Poznań, ul. Uniwersytetu Poznańskiego 6, 61-614 Poznań, PolandDepartment of Systematic and Environmental Botany, Faculty of Biology, Adam Mickiewicz University in Poznań, ul. Uniwersytetu Poznańskiego 6, 61-614 Poznań, PolandTree belts (TBs) as one of the agroforestry types, provide many ecosystem services (ESs), that reduce the negative environmental impact of agriculture and increase agricultural productivity. Unfortunately, the lack of quantitative and spatial information regarding TB properties, such as the porosity expressed by gap fraction, often leads to insufficient information on the availability of ESs provided by TBs, such as windbreak efficiency, barrier effectiveness for soil erosion and ability to redistribute snow cover. Moreover, image data, which are usually used for the assessment of TB porosity, only provide 2D information. Therefore, we propose the first comprehensive method of TB porosity indicator estimation conducted by gap mapping using 3D LiDAR (Light Detection and Ranging) data. The method allows to diagnose the spatial structure of TBs necessary for reliable evaluation of ES availability. Detailed cross-section diagnostic graphs and TB silhouette maps showed the intra-TB variation of porosity and thus may support the decision making on the crop types and may lead to better predictions of agricultural production. Also, on a testing study area, we revealed that the proposed method is suitable to significantly improve the accuracy of vegetation volume estimation in TB. Such a detailed analysis of the inner TB structure may be used to maximize the positive effect of tree belts on agricultural production and therefore is a way towards the sustainable agriculture as well as better assessment of ES provided by tree belts.http://www.sciencedirect.com/science/article/pii/S1470160X22007154WindbreakGreenway planningShelterbeltEcosystem servicesAfforestation needs
spellingShingle Maciej M. Nowak
Katarzyna Pędziwiatr
Paweł Bogawski
Hidden gaps under the canopy: LiDAR-based detection and quantification of porosity in tree belts
Ecological Indicators
Windbreak
Greenway planning
Shelterbelt
Ecosystem services
Afforestation needs
title Hidden gaps under the canopy: LiDAR-based detection and quantification of porosity in tree belts
title_full Hidden gaps under the canopy: LiDAR-based detection and quantification of porosity in tree belts
title_fullStr Hidden gaps under the canopy: LiDAR-based detection and quantification of porosity in tree belts
title_full_unstemmed Hidden gaps under the canopy: LiDAR-based detection and quantification of porosity in tree belts
title_short Hidden gaps under the canopy: LiDAR-based detection and quantification of porosity in tree belts
title_sort hidden gaps under the canopy lidar based detection and quantification of porosity in tree belts
topic Windbreak
Greenway planning
Shelterbelt
Ecosystem services
Afforestation needs
url http://www.sciencedirect.com/science/article/pii/S1470160X22007154
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