Demóstenes Ferreira da Silva Filho

Can the impulse propagation speed from cross-section tomography explain the conditioned density of wood?

Tomography is a wave-based technique used to depicture tree cross-sections; specifically, impulse tomography uses data given by the passage of impulse waves, which were primarily influenced by density, modulus of elasticity, and moisture content of wood. The influence of wood characteristics on various kinds of waves has been extensively studied, allowing the establishment of statistical correlations between wave behavior and wood properties. In this context, the relationship between impulse speed from cross-section tomography and conditioned density that was obtained on diametrical sample by X-ray densitometry was analyzed using logs of three tree species with different densities that were air dried to 12xa0% moisture content. For each species, means from 5 mm length intervals of conditioned density profile graph (ρ12%) and impulse speed distribution graph (S12%) on the same diametrical sample are used to fit models. Joining data from all species, the exponential model

TREE APPRAISAL AT HOLY HOUSE OF MERCY OF PIRACICABA/SP

ln rho_{12% } = - 4.32822 + 1.67894 *ln S_{12% }

QUANTITATIVE AND QUALITATIVE VALUATION OF URBAN FOREST IN A WATERSHED CÓRREGO DO SAPATEIRO, SÃO PAULO - SP

lnρ12%=-4.32822+1.67894∗lnS12% was obtained with correlation coefficient of 0.85 and highly significant parameters. The results indicate that conditioned density could be explained by impulse speed on the cross-section, but research is necessary to make a useful tool out of it.

ARBOREAL DIVERSITY AND STRUCTURAL ANALYSIS IN ENGLISH GARDEN OF THE UNIVERSITY OF SÃO PAULO

A falta de planejamento no processo de urbanizacao das grandes metropoles tem produzido numerosas externalidades negativas, entre elas a supressao de sua cobertura vegetal e de areas verdes. Inumeros beneficios tem sido reportados sobre como a presenca da vegetacao no meio ambiente urbano favorece fatores ambientais, sociais e economicos, influenciando na saude da populacao. O presente trabalho busca apresentar uma serie de estudos com enfoque na associacao entre areas verdes e saude e tambem uma sucinta reflexao sobre a importância do assunto no municipio de Sao Paulo.

Avaliação de método de questionário para estudo da relação entre presença e uso de aparelhos de refrigeração, arborização viária e consumo de energia elétrica

This research aimed to study the tree composition and the tree monetary appraisal at the Holy House of Mercy of Piracicaba (SP), through biometrics informations and plant assessment of root, root crown, trunk and crown, in a relational database. We did the trees census above 0.05 m of DBH (diameter at breast height) and we found 300 individuals, distributed in 67 species, 59 genus and 30 botanical families, highlighting the species Licania tomentosa (Benth.) Fritsch (10.7%), Caesalpinia pluviosa DC. (9.7%) and Ficus benjamina L. (6.0%), the genus Tabebuia (8.5%) and the families Bignoniaceae (15.3%), Leguminosae-Caesalpinoideae (12.7%) and Chrysobalanaceae (10.7%). The Shannon-Wiener diversity index was 3.56 and the tree appraisal, R

Indicadores de floresta urbana a partir de imagens aéreas multiespectrais de alta resolução

1,910,488.20, the individual average value was R

Interceptação da chuva pelas copas das espécies de Caesalpinia pluviosa DC. (Sibipiruna) e Tipuana tipu O. Kuntze (Tipuana) em arborização urbana

6,368.29 and the most valuable tree, Lophanthera lactescens Ducke, R

PANORAMA ATUAL DA COBERTURA ARBÓREA DA CIDADE DE SÃO PAULO

64,723.03. xa0The registration method in relational database proved to be efficient and organized for storage and processing data, as well as the free software Quantum GIS version 2.6, capable to prepare maps about the location of selected trees.