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Recent and long-term organic soil accretion and nutrient accumulation in the Everglades

Craft, C.B. (Joseph W. Jones Ecological Research Center, Newton, GA.) ; Richardson, C.J

Soil Science Society of America journal, 1998-05, Vol.62 (3), p.834-843 [Periódico revisado por pares]

Madison, WI: Soil Science Society of America

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Título:
Recent and long-term organic soil accretion and nutrient accumulation in the Everglades
Autor: Craft, C.B. (Joseph W. Jones Ecological Research Center, Newton, GA.) ; Richardson, C.J
Assuntos: Animal and plant ecology ; Animal, plant and microbial ecology ; ANTHROPOGENIC DRAINAGE ; AZOTE ; AZUFRE ; Biological and medical sciences ; BULK DENSITY ; CARBON ; CARBONE ; CARBONO ; CHANGE ; COMPORTAMIENTO HUMANO ; COMPORTEMENT HUMAIN ; DENSIDAD DEL SUELO ; DENSITE DU SOL ; DRAINAGE ; DRENAJE ; Earth sciences ; Earth, ocean, space ; ENRICHMENT ; Exact sciences and technology ; FLORIDA ; FLORIDA EVERGLADES ; FLORIDE ; FOSFORO ; Fresh water ecosystems ; Fundamental and applied biological sciences. Psychology ; GENESIS DEL SUELO ; Geochemistry ; HISTOSOL ; HISTOSOLES ; HISTOSOLS ; HUMAN ACTIVITY ; HUMAN BEHAVIOUR ; MATERIA ORGANICA DEL SUELO ; MATIERE ORGANIQUE DU SOL ; NITROGEN ; NITROGENO ; NUTRIENT CONTENT ; NUTRIENT LOADING ; NUTRIENT SEQUESTRATION ; NUTRIENTES ; NUTRIENTS ; NUTRITIVE VALUE ; Organic chemistry ; ORGANIC SOILS ; PEDOGENESE ; PHOSPHORE ; PHOSPHORUS ; POLLUTED SOIL ; REHABILITATION ; Soil and rock geochemistry ; SOIL DENSITY ; SOIL GENESIS ; SOIL ORGANIC MATTER ; Soils ; SOL DE TERRES HUMIDES ; SOL ORGANIQUE ; SOL POLLUE ; SOUFRE ; SUBSTANCE NUTRITIVE ; SUELO CONTAMINADO ; SUELO DE TIERRAS HUMEDAS ; SUELO ORGANICO ; SULPHUR ; Synecology ; TERRE HUMIDE ; Terrestrial ecosystems ; TIERRAS HUMEDAS ; VALEUR NUTRITIVE ; VALOR NUTRITIVO ; WETLAND SOILS ; WETLANDS
É parte de: Soil Science Society of America journal, 1998-05, Vol.62 (3), p.834-843
Notas: T01
P33
1997092594
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Descrição: Organic soil accretion and nutrient accumulation were measured in the northern, central, and southern Everglades to evaluate the effects of anthropogenic nutrient and hydroperiod alterations on organic C and nutrient storage during the past century. Six soil cores (euic, hyperthermic Typic Medisaprists) were collected from nutrient-enriched (Water Conservation Area [WCA] 2A) and unenriched locations. Soil depth increments were analyzed for radionuclides (137Cs, 210Pb, 14C), bulk density, and nutrients (C, N, P, S) to estimate recent (30-yr) and long-term (100-yr) organic soil accretion and nutrient accumulation. Since WCA 2A was completely impounded in the early 1960s, organic soil accretion in northern WCA 2A (5.8-6.7 mm yr-1) increased by three to five times compared with before 1960 (1.9 mm yr-1) or with unenriched areas within and outside of WCA 2A (1.4-1.6 mm yr-1). Nutrient accumulation in the enriched area of WCA 2A since 1960 was two (184-223 g C m-2 yr-1, 13.6-16.6 g N m-2 yr-1) to eight (0.40-0.46 g P m-2 yr-1) times higher than before 1960 (110 g C m-2 yr-1, 6.6 g N m-2 yr-1, 0.06 g P m-2 yr-1) or in unenriched areas (65-90 g C m-2 yr-1, 4.7-6.4 g N m-2 yr-1, 0.06 g P m-2 yr-1). Unenriched areas of the Everglades possess some of the lowest rates of P accumulation of peatlands in North America. Successful restoration of the Everglades will have to include the elimination of anthropogenic nutrient loadings to limit the P enrichment zone from expanding into existing unenriched interior areas and areas downstream of WCA 2A
Editor: Madison, WI: Soil Science Society of America
Idioma: Inglês

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Recent and long-term organic soil accretion and nutrient accumulation in the Everglades

Craft, C.B. (Joseph W. Jones Ecological Research Center, Newton, GA.) ; Richardson, C.J

Madison, WI: Soil Science Society of America

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