Using Picus® Sonic Tomograph to assess the health state of trees of monumental sizes

Abstract

<jats:p>The aim of the study was to examine the usefulness of The Picus 3 Sonic Tomograph to assess the health state of trees of monumental sizes, which are an important part of the cultural landscape. In the study there were selected tree species Tilia cordata, Gingko biloba and Ulmus glabra growing in the vicinity of Lublin in different habitat conditions. Changes in the internal structure of the tree trunks were shown on the colour tomograms. Two tested specimens of Tilia cordata located in Radawiec Duży were intended to be cut down due to the construction of the ring road of Lublin. This made it possible to compare the obtained tomograms with the actual state of the inside of tree trunks after cutting down the examined trees. The results of Picus tomography Ulmus glabra and Gingko biloba growing in the historic park in Czesławice were confirmed by a visual assessment of trees. In each case the number of installed sensors influenced the image resolution and accuracy of the obtained tomograms. Diagnostics using sound waves is important in assessing the state of health of each tree, but it is especially recommended for testing of valuable trees. It allows for early diagnosis and selection of such protective actions to reduce to a minimum the destructive impact study on the body of the plant.</jats:p>

Protection of historical trees in the city area using the example of a historical manor alley in Zemborzyce

“…Most defects inside the trunk, especially the presence of decay, lead to a reduction in the density and flexibility of the wood, which results in the reduction of the speed of waves at the point of damage. The results of the conducted research show a tomogram -a graphic picture which presents an actual internal structure of a trunk cross-section at the height of a tree examination in detail and in some cases it allows us to detect the early stages of tree decay [5,2,3,4]. Photographic documentation was made using the camera NIKON D5300.…”

Comparing Reliability of FHM and ISA Methods in Assessing Old and Large Dipterocarp Trees Health

“…Falling trees can cause economic losses in urban forest landscapes (Bari et al, 2021;Kalleshwaraswamy et al, 2022). From the indicators, there is no doubt that there is decay so that tomography could estimate its extent (Durlak et al, 2017;Hanum et al, 2020;C. J. Lin et al, 2008;Rachmadiyanto et al, 2022).…”

A Combined Methods of Senile Trees Inventory in Sustainable Urban Greenery Management on the Example of the City of Sandomierz (Poland)

“…The second of the limes ( 6) is located at the very entrance to the St. James church. On the other hand, at the bell tower of the church of St. Paul the Apostle, the common ash (Fraxinus excelsior L.) grows (7), and in the vicinity of the presbytery buildings, there is an imposing English oak (Quercus robur L.) (8). Within the Old Town of Sandomierz, there is another natural monument, a small-leaved lime (Tilia cordata Mill.)…”

“…Monitoring and control should be carried out not only through visual assessment (VTA) but also with the use of modern technologies. Likewise, protecting historic trees includes entering them into the register of natural monuments [6,7].…”