Full text
| |
| Author(s): |
Karen Christina de Freitas
Total Authors: 1
|
| Document type: | Master's Dissertation |
| Press: | Campinas, SP. |
| Institution: | Universidade Estadual de Campinas (UNICAMP). Faculdade de Engenharia Agrícola |
| Defense date: | 2020-02-28 |
| Examining board members: |
Raquel Gonçalves;
Cândida Pereira da Costa;
Giuliana Del Nero Velasco
|
| Advisor: | Sergio Brazolin; Raquel Gonçalves |
| Abstract | |
The urban environment and it¿s planting condition in this environment have been reported as one of the main factors responsible for the increased risk of falling trees. However, for more accurate analysis of this risk, it is necessary to use tools that allow the quantification of parameters associated with problems in the development of the tree and its root system. The objective of this research was to evaluate methodology and inspection tools applied in the analysis of the distribution of the root system and the soil of the construction site. To achieve this goal, the association of three pieces of equipment for the analysis of the root system (graduated stem, ultrasound and tomography) and one for the soil (penetrometer) was evaluated. The design consisted of 24 trees of the same species (Cenostigma pluviosum) planted under four different planting conditions - flower bed with waterproof pavement, flower bed with permeable pavement, land cover and grass cover. The results show that the association of the equipment allows obtaining data regarding the distribution of the roots. The graduated bar, used as a first approximation of the distribution and depth of the roots, allows the creation of a first positioning map. Reference speeds can be obtained using conventional ultrasound applied to exposed roots. These reference speeds, used in the analysis of the tomography results, allow us to obtain answers regarding the positioning of the roots in all types of beds. The root distribution map, associated with the soil compaction condition given by the penetrometer, complements the information and assists in the diagnosis of the influence of the planting condition (AU) | |
| FAPESP's process: | 18/14386-1 - Effect of condition of urban tree plantation in the soil available for its development and root morphology and distribution |
| Grantee: | Karen Christina de Freitas |
| Support Opportunities: | Scholarships in Brazil - Master |