The effects of management and plant diversity on carbon storage in coffee agroforestry systems in Costa Rica

Carbon Stocks in Organic Coffee Systems in Chiapas, Mexico

“…In the present study, the total carbon stocks stored in trees, in all the three management systems, were higher than those found in coffee plantations in Costa Rica and El Salvador (Häger, 2012;Méndez et al, 2009) and similar to those reported for others in Togo and Guatemala (Dossa et al, 2008;Schmitt-Harsh et al, 2012). Organic coffee polyculture showed similar carbon stocks to low tropical forests in Guatemala (Schmitt-Harsh et al, 2012), medium semi-humid forest in Mexico (Orihuela-Belmonte et al, 2013), and other high covered agroforestry systems in Mexico, such as improved fallows, Taungya, and silvopastoral systems (Soto-Pinto et al, 2010;Soto-Pinto & Armijo-Florentino, 2014).…”

“…Apparently, different species at each site perform the same function of carbon accumulation and carbon stocks depending more on tree and sapling density, wood density, tree management, and soil management (Palm, 1995;De Jong et al, 1997;Van Noordwijk et al, 2002;Montagnini & Nair, 2004;Chave et al, 2005;Soto-Pinto et al, 2007;Häger, 2012). Nevertheless, the ability of coffee systems to provide other ecosystem services, such as biodiversity conservation, erosion control, and pollination, is closely related to its complexity and diversity (Somarriba et al, 2004;Srivastava & Vellend, 2005;Perfecto et al, 2007;Philpott et al, 2008a;Vergara & Badano, 2009;Tscharntke et al, 2005Tscharntke et al, , 2011.…”

“…However, little is known of the shade composition and complexity related to the potential to maintain carbon stocks (Mendez et al, 2009) and, in this sense, soil is the largest carbon component in natural and agricultural systems, but little is also known of the contribution of organic systems in this environmental function. Some authors have reported a higher potential of organic coffee to store C in soils that non organic coffee, but others reported the contrary (Mendez et al, 2009;Soto-Pinto et al, 2010;Häger, 2012).…”

“…The coffee plantations in tropics are managed with shade trees which forms a complex system with high potential to provide environmental services, especially traditional polyculture systems and rustic coffee (Van Noordwijk et al, 2002;Peeters et al, 2003;Perfecto et al, 2007;Soto-Pinto et al, 2010;Rapidel et al, 2011;Häger, 2012). Some studies have pointed out the contrast between the potential to maintain a stock of carbon between plantations with and without shade.…”

Carbon sequestration and Jerusalem artichoke biomass under nitrogen applications in coastal saline zone in the northern region of Jiangsu, China

“…Farmland ecosystems as one of the most active parts in the global carbon pool have equal and frequently greater net ecosystem production (NEP) than the natural ecosystems (Hollinger et al, 2004;Li et al, 2006). By 2030, farmland ecosystems have the potential to mitigate emissions of 5.5-6.0 Gt CO 2 per year, with 89% of this amount being due to soil organic carbon (SOC) storage (Häger, 2012). Many activities may affect farmland ecosystems, such as cultivation, irrigation and fertilization, resulting in significant variations in net ecosystem exchange (NEE) of CO 2 .…”