tailieunhanh - Báo cáo lâm nghiệp: "Comparison of ecosystem C pools in three forests in Spain and Latin America"

Tuyển tập các báo cáo nghiên cứu về lâm nghiệp được đăng trên tạp chí lâm nghiệp Original article đề tài: Comparison of ecosystem C pools in three forests in Spain and Latin America. | Ann. For. Sci. 63 2006 519-523 INRA EDP Sciences 2006 DOI forest 2006034 519 Original article Comparison of ecosystem C pools in three forests in Spain and Latin America Felipe GARCÍA-OLlVAa Guillermina HERNÁNDEZb Juan F. Gallardo Lanchoc a Centro de Investigaciones en Ecosistemas UNAM AP 27-3 Sta. María de Guido Morelia 58090 Michoacán Mexico b Institute de Ecología y Sistemática AP 8029 La Habana 10800 Cuba c Consejo Superior de Investigaciones Cientificas IRNA Aptado. 257 Salamanca 37071 Spain Received 25 April 2005 accepted 23 February 2006 Abstract - To face the lack of information of C content in the main forest ecosystems pools from Spain and Latin America this study compares C pools of three forest ecosystems a tropical deciduous forest in Mexico a tropical wet forest in Cuba and a temperate forest in Spain. The Cuban tropical wet forest had the highest total ecosystem C content 190 Mg C ha-1 of which 62 was in the aboveground biomass followed by the Spanish temperate forest 150 Mg C ha-1 with around 75 of total C content was within soil. The Mexican tropical deciduous forest had the lowest total ecosystem C content Mg C ha-1 of which 51 was in the soil. Tropical forests can not guaranteed sequestered C if the forest programs do not consider aboveground biomass protection. In contrast temperate forests with slower C sequestration rate by means of soil stabilization are less vulnerable to forest programs. biomass Cuba Mexico soil organic C Spain Résumé - Comparaison du pool de C dans trois écosystèmes forestiers d Espagne et d Amerique latine. Ce travail fait une comparaison entre les teneurs du C des sols appartenant à trois forêts une forêt caducifoliée tropicale au Mexique une forêt tropicale à Cuba et une troisième forêt tempérée en Espagne. La forêt tropicale mexicaine a la plus basse teneur en C Mg C ha-1 dans l écosystème 51 dans le sol la forêt tropicale cubaine a la plus haute teneur en C 190 Mg C ha-1 dans l écosystème 63 .