A conceptual model provides the best support for federating heterogeneous datastores into a unified framework and elaborating a global consistent description of all available data. It therefore plays a central role for exchange of information within the coming information society. This paper introduces a conceptual model for applications using spatio-temporal data. We discuss in particular the ...

The subject of this article is the dynamics water in a soil pedostructure sample whose internal environment subjected to potential gradient created by departure through surface evaporation. This work refers entirely results and conclusions fundamental theoretical study focused on molecular thermodynamic equilibrium two aqueous phases pedostructure. new concepts descriptive variables hydro-therm...

Groundwater flow in sedimentary rock saprolite, and in soils derived from this material, is strongly influenced by sedimentary layering and fractures inherited from the parent bedrock. The main objectives of this study were to determine whether parent bedrock lithology and infilling of fractures and other macropores with pedogenically derived clays and Fe/Mn oxides also play major roles in cont...

Performing field studies to assess soil degradation is expensive and time-consuming. Estimates made by numerical models are, therefore, usually preferred many researchers professionals that work on this subject. The present study primarily aims the potential (PSD) in state of Sergipe, Brazil, years 2000 2019, employing fuzzy logic a Geographic Information System (GIS) environment. proposed mode...

SSSAJ: Volume 75: Number 3 • May–June 2011 Soil Sci. Soc. Am. J. 75:1044–1053 Published online 26 Apr. 2011 doi:10.2136/sssaj2010.0002 Received 1 Jan. 2010. *Corresponding author ([email protected]). © Soil Science Society of America, 5585 Guilford Rd., Madison WI 53711 USA All rights reserved. No part of this periodical may be reproduced or transmitted in any form or by any means, electronic o...

Soil Sci. Soc. Am. J. 79:155–164 doi:10.2136/sssaj2014.09.0392 Received 29 Sept. 2014. *Corresponding author: ([email protected]). © Soil Science Society of America, 5585 Guilford Rd., Madison WI 53711 USA All rights reserved. No part of this periodical may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying, recording, or any information ...

This study was carried out in Paraopeba National Reserve. It aims to classify and evaluate the soil of the studied area and to verify the influence of soil attributes on vegetation by testing the following hypotheses: 1) under woodland physiognomies (Cerradão) the soil fertility is higher and the Al content lower; 2) open savanna occurs only in areas with high Al contents. For this purpose, rep...