Abstract
This publication presents the analysis of tree stands’ changes for the area of Wilanów district in Warsaw, based on photogrammetric data. Using different photogrammetric techniques, such as image matching techniques and archival airborne laser scanning, a multitemporal analysis of vegetation changes was carried out. It enabled receiving information on the range and occurrence of trees in two different periods of time. The overriding work problem was to answer the question of how noticeable changes in trees stands’ range and height occurred over 2012 - 2017. Generated digital elevation models were used for the analysis of tree stands’ changes in the Wilanów district and the detection of places with the crowns’ loss. The carried analysis of changes showed loss of biomass for 18.2% of single trees, including disappearance of 11.7% of trees and reduction in height (probably by trimming) for 6.5% of trees.
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Claims 3
Claim · model-written summary
Biomass loss occurred in 18.2% of single trees.
Verbatim
e0“loss of biomass for 18.2% of single trees”
Claim · model-written summary
Tree disappearance occurred in 11.7% of trees.
Verbatim
e0“disappearance of 11.7% of trees”
Claim · model-written summary
Height reduction, probably due to trimming, occurred in 6.5% of trees.
Verbatim
e0“reduction in height (probably by trimming) for 6.5% of trees”