Characterization, functioning and classification of two volcanic soil profiles under different land uses in Central Mexico

Land-use/cover change effects and carbon controls on volcanic soil profiles in highland temperate forests

“…Studies of modification of soil C by LUCC have developed mainly in temperate forest of mid-latitudes, and research in low-latitude temperate forest is scarce (e.g. Campos, 2004;Mendoza et al, 2005;Prado et al, 2007). Moreover, changes in the stabilization of organic compounds by Al in Andosols could influence the response of these soils to LUCC (Percival et al, 2000) and it has been pointed out that further research is required on the effects of LUCC on C stabilization and dynamics in these soils (Lal et al, 1998).…”

Retention of phenylarsenicals in soils derived from volcanic materials

“…At one site for example, the land use was 46% forest and 37% agriculture (maize and wheat) [19]. Aim was to determine the different retention behavior, in terms of sorption models, of different soils upon roxarsone (RO), o-arsanilic acid (AA) and phenylarsonic acid (PA).…”

From andic non-allophanic to non-andic allophanic Inceptisols on alkaline basalt in Mediterranean climate

“…In studied soils the mean Al p /Al o ratio ranges from 0.36 (POM1) to 0.52 (FLM5), and application of the Si o method (Parfitt, 1990) has yielded an estimated 8% allophane content in the A 2 horizon of POM1, and very low values in FLM5 and SPM8. These results suggest that in FLM 5 and SPM8 Al was largely incorporated in Al-humus complexes, thus producing an antiallophanic effect Prado et al, 2007). Conversely, active Al was significantly incorporated into allophane in the A 2 horizon of POM1, whilst decreasing in the B w horizon.…”