Data/hora: 05/06/2024 09:08:09

Biblioteca(s): | Embrapa Agrobiologia.
Data corrente: | 15/09/1998
Data da última atualização: | 11/11/2010
Autoria: | COLEMAN, D. C.; OADES, J. M.; UEHARA, G.
Título: | Dynamics of soil organic matter in tropical ecosystems.
Ano de publicação: | 1989
Fonte/Imprenta: | Kahului: NIFTAL, 1989. 249 p.
Páginas: | 249 p.
ISBN: | 0-8248-1251-4
Idioma: | Inglês
Notas: | Result of a conference held at the Maui Beach Hotel, Kahului,Maui, Havai. October 7-15, 1988, hosted by the NIFTAL Project, University of Hawaii.
Conteúdo: | Constituents of organic matter in temperate and tropical soils. Abstract. Concepts and definitions. Constituents of soil organic matter. Constitution using stable carbon isotopes. Soil organic matter as a source and a sink of plant nutrients. N, P, and S in soil organic matter. Biological mineralization and immobilization of N, P, and S. Management of soil organic N, P, and S. Organic matter and cationic nutrients. Organic sources of nutrients and crop yield. Interactions of soil organic matter and variable-charge clays. Definition and origin of variable charge is soils. Interaction between organic molecules and oxides. Interactions between organic matter and variable-charge clays. Biological processes regulating organic matter dynamics in tropical soils. Processes of decomposition, SOM formation, and stabilization. A hierarchy of variables determining organic matter dynamics. Changes in litter inputs and controls over SOM dynamics. Organic input management in tropical agroecosystems. Historical perspective. Organic inputs in tropical agroecosystems. Nutrient availability. Roots as organic inputs. Organic inputs and soil organic matter. Modeling soil organic matter dynamics in tropical soils. Model description. Model simulations. Methodologies for assessing the quantity and quality of soil organic matter. Chemical fractionation. Physical fractionation. Methods of characterization. Pools of soil organic matter.
Palavras-Chave: | Dinâmica; Região; Soil dynamics; Tropical; Tropical zones.
Thesagro: | Ecologia; Húmus; Manejo; Matéria Orgânica; Solo.
Thesaurus Nal: | ecology; organic matter; soil; soil management.
Categoria do assunto: | --
Registro original: | Embrapa Agrobiologia (CNPAB)
Exemplares: | CNPAB - (25690-1) - ADC - LV - -- - 631.417 - C692d - 1997.00076 - DIS