Twilley, R.R.
Carbon sinks in mangroves and their implications to carbon budget of tropical coastal ecosystems - Países Bajos Kluwer Academic Publishers 1992 - 24 páginas : 10 ilustraciones, 6 tablas - Water, Air, and Soil Pollution Número 64 (1992) Agosto páginas 265-288 .
Bibliografía páginas 283-288
Nearly 50% of terrigenous materials delivered to the world's oceans are delivered through just twenty-one major river systems. The tropical regions of the biosphere are the most biogeochemically active coastal regions and represent potentially important sinks of C in the biosphere. Rates of net primary productivity and biomass accumulation depend on a combination of global factors such as latitude and local factors such as hydrology. Global estimates of export from coastal wetlands is about 0.08 Pg C/yr compared to input of 0.36 Pg C/yr from rivers to coastal ecosystems. Total allochthonous input of 0.44 Pg C/yr is lower than in situ production of 6.65 Pg C/yr. The trophic condition of coastal ecosystems depends on the fate of this total supply of 7.09 Pg C/yr as either contributing to system respiration, or becoming permanently stored in sediments. Accumulation of carbon in coastal sediments is only 0.41 Pg C/yr; about 6% of the total input. The NEP of coastal wetlands also contribute to the C sink of coastal margins, but the source of this C is part of the terrestrial C exchange with the atmosphere. Accumulation of C in wood and sediments of coastal wetlands is 0.205 Pg C/yr, half the estimate for sequestering of C in coastal sediments. Burial of C in shelf sediments is probably underestimated, particularly in tropical river-dominated coastal margins. Better estimates of these two C sinks in the tropics, coastal wetlands and shelf sediments, is needed to better understand the contribution of coastal ecosystems to the global carbon budget.
1573-2932 0049-6979
BIOMASA
CARBONO
ALMACENAMIENTO
FOTOSINTESIS
MANGLES
AREA COSTERA
ECOSISTEMA
CURSOS DE AGUA
MEDICION
MODELOS
PRODUCCION DE MADERA
ECUACIONES ALOMETRICAS
BIOMASA AEREA
FIJACION DE CARBONO
PUERTO RICO
Carbon sinks in mangroves and their implications to carbon budget of tropical coastal ecosystems - Países Bajos Kluwer Academic Publishers 1992 - 24 páginas : 10 ilustraciones, 6 tablas - Water, Air, and Soil Pollution Número 64 (1992) Agosto páginas 265-288 .
Bibliografía páginas 283-288
Nearly 50% of terrigenous materials delivered to the world's oceans are delivered through just twenty-one major river systems. The tropical regions of the biosphere are the most biogeochemically active coastal regions and represent potentially important sinks of C in the biosphere. Rates of net primary productivity and biomass accumulation depend on a combination of global factors such as latitude and local factors such as hydrology. Global estimates of export from coastal wetlands is about 0.08 Pg C/yr compared to input of 0.36 Pg C/yr from rivers to coastal ecosystems. Total allochthonous input of 0.44 Pg C/yr is lower than in situ production of 6.65 Pg C/yr. The trophic condition of coastal ecosystems depends on the fate of this total supply of 7.09 Pg C/yr as either contributing to system respiration, or becoming permanently stored in sediments. Accumulation of carbon in coastal sediments is only 0.41 Pg C/yr; about 6% of the total input. The NEP of coastal wetlands also contribute to the C sink of coastal margins, but the source of this C is part of the terrestrial C exchange with the atmosphere. Accumulation of C in wood and sediments of coastal wetlands is 0.205 Pg C/yr, half the estimate for sequestering of C in coastal sediments. Burial of C in shelf sediments is probably underestimated, particularly in tropical river-dominated coastal margins. Better estimates of these two C sinks in the tropics, coastal wetlands and shelf sediments, is needed to better understand the contribution of coastal ecosystems to the global carbon budget.
1573-2932 0049-6979
BIOMASA
CARBONO
ALMACENAMIENTO
FOTOSINTESIS
MANGLES
AREA COSTERA
ECOSISTEMA
CURSOS DE AGUA
MEDICION
MODELOS
PRODUCCION DE MADERA
ECUACIONES ALOMETRICAS
BIOMASA AEREA
FIJACION DE CARBONO
PUERTO RICO