Effect factors of terrestrial acidification in Brazil for use in Life Cycle Impact Assessment

Abstract

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Relationships between plant species richness and soil pH at the level of biome and ecoregion in Brazil

“…Regardless of the spatial resolution, the species richness variation as a function of soil pH indicates that decreasing or increasing pH from the optimum pH may be associated with a reduction in the number of species that occur. The relationship between terrestrial plant species richness and soil pH can thus support the assessment of impacts related to terrestrial acidification (Crespo- Mendes et al, 2018). The substantial empirical data presented here offer additional opportunities to estimate species loss per unit of land use that can be used to assess land use impacts.…”

Globally differentiated effect factors for characterising terrestrial acidification in life cycle impact assessment

“…The adopted methodology follows the approach described by Crespo-Mendes et al (2019b) where georeferenced plant species data need to be inventoried (introduced in Section 2.1) and combined with soil pH data to derive species richness distributions (Section 2.2). These serve as inputs to the calculation of EFs (detailed in Section 2.3); ways to evaluate the robustness of the EFs are described in Section 2.4.…”

“…Furthermore, the EFs are currently provided at the spatial resolution of the 14 world biomes (Olson et al, 2001), which may be too coarse to fully capture damages to ecosystems. A recent study by Crespo-Mendes et al (2019b) has shown that the use of species occurrence data from a botanical database in Brazil could result in a dramatic increase in species coverage, and enhance the determination of EFs at sub-biome level, e.g. ecoregion level (Olson et al, 2001).…”

Envolvimento de enzimas NADP-desidrogenases na tolerância ao alumínio em plântulas de soja

“…al., 2016). No Brasil, cerca de 67% de seu território é formado por solos ácidos (Crespo-Mendes et. al., 2018).…”

“…No Brasil, o maior produtor de soja mundial, cerca de 67% da área do país apresenta solos ácidos (pH <5,5) (Crespo-Mendes et. al., 2018) e não há registros de programas de melhoramento para a tolerância ao alumínio para tal cultura.…”