Buscar
Mostrando ítems 1-10 de 344
Técnicas geoestatísticas na avaliação de atributos químicos em Cambissolo com agrofloresta e cana-de-açúcar em Humaitá, Amazonas
(2015-01-01)
There is a lack of studies focusing on the spatial behavior of chemical attributes in the Amazon. In this sense, the objective of this study was to use geostatistical techniques in the evaluation of chemical attributes in ...
The Sedimentation in the Southern Amazonas River ChannelSedimentação da Desembocadura do canal sul do Rio Amazonas
(Instituto de Geociências /Universidade Federal do Rio Grande do Sul, 2001)
Biochronostratigraphy (conodonts and palynology) from a selected strata of the Itaituba Formation (Pennsylvanian of the Amazonas Basin) at Itaituba, Pará State, BrazilBiochronostratigraphy (conodonts and palynology) from a selected strata of the Itaituba Formation (Pennsylvanian of the Amazonas Basin) at Itaituba, Pará State, Brazil
(Instituto de Geociências /Universidade Federal do Rio Grande do Sul, 2009)
Natural contents of heavy metals in soils of the southern Amazonas state, Brazil
(2017-11-01)
Heavy metals occur naturally in the soil as a product of rock weathering and, are commonly associated with environmental pollution and toxicity to living beings. This association deserves much attention since some heavy ...
New Occurrences of Macrofungi (Basidiomycota) in Southern Amazonas, Brazil
(Universidade Federal de Santa Maria, 2022)
Characteristics of color and iron oxides of clay fraction in Archeological Dark Earth in Apui region, southern Amazonas
(Elsevier B.V., 2016-01-15)
One of the marks left by prehistoric man in the Amazonas landscape are the dark-colored soil stains, Archeological Dark Earth (ADE), which are rich in organic matter, phosphorus and calcium. The color in this soil is ...
DETERMINATION OF SOIL ERODIBILITY BY MEANS OF TWO INDIRECT METHODS IN A WATERSHED IN THE SOUTHERN REGION OF THE STATE OF AMAZONAS, BRAZIL
(Uniao Geomorfologia Brasileira, 2020-04-01)
Water erosion is one of the main problems facing agriculture worldwide. It is responsible for the transport of sediments that compromise the quality and quantity of water in rivers and reservoirs, as well as for the loss ...
Chemical Soil Attributes Evaluated By Multivariate Techniques And Geostatistics In The Area With Agroforestry And Sugarcane In Humaitá, Am, Brazil
(Univ Federal UberlandiaUberlandia, 2016)
Chemical Soil Attributes Evaluated By Multivariate Techniques And Geostatistics In The Area With Agroforestry And Sugarcane In Humaita, Am, Brazil
(UNIV FEDERAL UBERLANDIAUBERLANDIA, 2016)