Figure 3
Environmental evolution in Sierra Nevada during the last ∼800 years. (a) Longest temperature anomaly record in Spain (Madrid, central Spain)60, (b) longest precipitation record in Spain (San Fernando, Cádiz, southern Spain)60, (c,d) indirect human impact in the studied area during the last hundred years: (c) record of the atmospheric Hg pollution in BdlC (this work), and (d) atmospheric Pb pollution in LdRS13, (e) C/N and (f) Paq and fluctuations at BdlC and BdlV. Acronyms: LIA: Little Ice Age; IR1: First Industrial Revolution; IR2: Second Industrial Revolution: GW: Recent Global Warming. Paq thresholds: terrestrial plants <0.23> emergent aquatic plant >0.48 submerged/floating plants34. C/N thresholds: algae <10> terrestrial and aquatic vascular plants+algae <20> terrestrial vascular plants36, 37.
