Carbon Flux and Patterns of Land-Use/ Land-Cover Change in the Selva Lacandona, Mexico

Ben H. J. De Jong; Susana Ochoa-Gaona; Miguel Angel Castillo-Santiago; Neptalí Ramírez-Marcial; Michael A. Cairns

doi:10.1579/0044-7447-29.8.504

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Ben H. J. De Jong,^* Susana Ochoa-Gaona,^** Miguel Angel Castillo-Santiago,^** Neptalí Ramírez-Marcial,^** Michael A. Cairns^***

^*Ben H.J. de Jong is a researcher in the Department of Agroecology, ECOSUR. His address: El Colegio de la Frontera Sur, Apartado Postal 63, San Cristóbal de las Casas, C.P. 29200, Chiapas, Mexico. bjong@sclc.ecosur.mx
^**Susana Ochoa-Gaona, Miguel Angel Castillo-Santiago and Neptalí Ramírez-Marcial are researchers in the Department of Biodiversity Conservation, ECOSUR. Their address: El Colegio de la Frontera Sur (ECOSUR); Carr. Panamericana / Periferico Sur SN; 29290 San Cristobal de las Casas, Chiapas, Mexico.
^***Michael A. Cairns is a research biologist with the US EPA Western Ecology Division. His address: US Environmental Protection Agency, National Health and/or Environmental Effects Research Laboratory, Western Ecology Division,, 200 SW 35th Street, Corvallis, Oregon 97333 USA. michael@mail.cor.epa.gov

Abstract

Based on land-use/land-cover (LU/LC) maps for the 1970s and satellite imagery for the 1990s we estimate LU/LC change and associated C fluxes in 3 subregions of the Selva Lacandona, Chiapas, Mexico. The total area of closed forest was reduced by 31%, whereas secondary forests expanded more than ninefold, secondary shrubs by almost sixfold, and cultivated land and pasture areas expanded 21% and 92%, respectively. However, the LU/LC change was not uniformly distributed over the entire study area. Total mean C densities ranged from 452 Mg C ha⁻¹ for closed mature forests to a low of 120 Mg C ha⁻¹ for pasture. The heavily converted areas lost an estimated 24% of their total 1976 C pools, whereas the low impacted region lost only 3%.

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Ben H. J. De Jong, Susana Ochoa-Gaona, Miguel Angel Castillo-Santiago, Neptalí Ramírez-Marcial, and Michael A. Cairns "Carbon Flux and Patterns of Land-Use/ Land-Cover Change in the Selva Lacandona, Mexico," AMBIO: A Journal of the Human Environment 29(8), 504-511, (1 December 2000). https://doi.org/10.1579/0044-7447-29.8.504

Received: 5 October 1999; Accepted: 1 April 2000; Published: 1 December 2000

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