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No. de sistema: 000027063

LDR _ _ 00000nab^^22^^^^^za^4500
008 _ _ 020000m20009999xx^^r^p^^^^^^z0^^^a0eng^d
040 _ _ a| ECO
c| ECO
043 _ _ a| n-mxg--
044 _ _ a| xx
084 _ _ a| AR/333.75137
b| T7
245 0 0 a| Tropical mexico's recent land-use change
b| a region's contribution to the global carbon cycle
520 1 _ a| We applied modeled biomass density estimates to changes in land use/land cover (LU/LC) statistics for the intensively impacted and highly fragmented landscape of tropical Mexico to estimate the flux of carbon (C) between terrestrial ecosystems and the atmosphere between 1977 and 1992. Biomass densities were assigned to hybrid LU/LC classes on vegetation maps produced by Mexican governmental organizations and, by differencing areas and biomass C pools, net C flux was calculated in the eight-state tropical region of southeast Mexico. These states, representing tropical Mexico, experienced a mean annual deforestation rate of nearly 559 000 ha/yr, or 1.9%, between 1977 and 1992. The total area of closed forests decreased by 26%, open/fragmented forests decreased by 31%, and agroecosystem areas increased by 64%. Total mean biomass densities ranged from a high of 265 Mg/ha in the Veracruz state tall/medium tropical evergreen forest class to a low of 12 Mg/ha in the cultivated land class (several states). We estimate that a total of 280 Tg C were released from the terrestrial biosphere during the 15-yr period covered by our study, equal to nearly 20% of the region's 1977 biomass C pool. The study region, while comprising just 24% of Mexico's surface area, contributed 36% of the net national C emissions from LU/LC change.
533 _ _ a| Reproducción electrónica en formato PDF
538 _ _ a| Adobe Acrobat profesional 6.0 o superior
650 _ 4 a| Biomasa forestal
650 _ 4 a| Deforestación
650 _ 4 a| Cambio de uso de la tierra
650 _ 4 a| Agroforestería
650 _ 4 a| Conservación de bosques
651 _ 4 a| Sureste de México
700 1 _ a| Cairns, Michael A.
700 1 _ a| Haggerty, Patricia K.
e| coaut.
700 1 _ a| Alvarez, Roman
e| coaut.
700 1 _ a| De Jong, Bernardus Hendricus Jozeph
e| coaut.
700 1 _ a| Olmsted, Ingrid C.
e| coaut.
773 0 _
t| Ecological Applications
g| Vol. 10, no. 5 (Octubre 2000), p. 1426-1441
x| 1051-0761
856 4 1 u| http://onlinelibrary.wiley.com/doi/10.1890/1051-0761(2000)010%5B1426:TMSRLU%5D2.0.CO;2/epdf
z| Artículo electrónico
856 _ _ u| http://aleph.ecosur.mx:8991/F?func=service&doc_library=CFS01&local_base=CFS01&doc_number=000027063&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA
y| Artículo electrónico
902 _ _ a| JRMS/GOG / MM
905 _ _ a| Artecosur
905 _ _ a| Artfrosur
905 _ _ a| Desastres
905 _ _ a| Servibosques
905 _ _ a| CRIIS
905 _ _ a| Biblioelectrónica
LNG eng
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Tropical mexico's recent land-use change: a region's contribution to the global carbon cycle
Cairns, Michael A. (autor)
Haggerty, Patricia K. (autor)
Alvarez, Roman (autor)
De Jong, Bernardus Hendricus Jozeph (autor)
Olmsted, Ingrid C. (autor)
Clasificación: AR/333.75137/T7
Contenido en: Ecological Applications. Vol. 10, no. 5 (Octubre 2000), p. 1426-1441. ISSN: 1051-0761
Bibliotecas:
San Cristóbal , Villahermosa
No. de sistema: 27063
Tipo: Artículo
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Inglés

"We applied modeled biomass density estimates to changes in land use/land cover (LU/LC) statistics for the intensively impacted and highly fragmented landscape of tropical Mexico to estimate the flux of carbon (C) between terrestrial ecosystems and the atmosphere between 1977 and 1992. Biomass densities were assigned to hybrid LU/LC classes on vegetation maps produced by Mexican governmental organizations and, by differencing areas and biomass C pools, net C flux was calculated in the eight-state tropical region of southeast Mexico. These states, representing tropical Mexico, experienced a mean annual deforestation rate of nearly 559 000 ha/yr, or 1.9%, between 1977 and 1992. The total area of closed forests decreased by 26%, open/fragmented forests decreased by 31%, and agroecosystem areas increased by 64%. Total mean biomass densities ranged from a high of 265 Mg/ha in the Veracruz state tall/medium tropical evergreen forest class to a low of 12 Mg/ha in the cultivated land class (several states). We estimate that a total of 280 Tg C were released from the terrestrial biosphere during the 15-yr period covered by our study, equal to nearly 20% of the region's 1977 biomass C pool. The study region, while comprising just 24% of Mexico's surface area, contributed 36% of the net national C emissions from LU/LC change."

SIBE San Cristóbal
Codigo de barra
Estado
Colección
ECO010018795
(Disponible)
Artículos de investigación ECOSUR
B3370
(Disponible)
Artículos de investigación ECOSUR
SIBE Villahermosa
Codigo de barra
Estado
Colección
ECO050002085
(Disponible)
Artículos de investigación ECOSUR

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