Farmland with plastic soil cover Yong Wang/ZumaPress

Salvare il Suolo

BERLINO – Le Nazioni Unite hanno dichiarato il 2015 l’Anno Internazionale dei Suoli, e i giorni dal 19 al 23 aprile segnano la Settimana Globale del Suolo di quest’anno. Tali eventi, anche se non proprio glamour, non ricevono l’attenzione che meritano.

I terreni integri rappresentano una risorsa preziosa e insostituibile, che svolge molteplici funzioni per il raggiungimento dei principali obiettivi di sviluppo ed ambientali della comunità internazionale. E oggi essi hanno urgente bisogno di protezione.

I suoli sani sono essenziali per l’alimentazione umana e la lotta contro la fame. Dipendiamo da loro, non solo per la produzione alimentare, ma anche per la generazione di nuova acqua potabile. Essi aiutano a regolare il clima della Terra, ad immagazzinare carbonio in quantità maggiore dell’insieme di tutte le foreste del mondo (solo gli oceani sono un bacino di carbonio più grande), e sono essenziali per il mantenimento della biodiversità: una manciata di terra fertile contiene più microrganismi di quanti esseri umani siano sul pianeta. Due terzi delle specie terrestri vivono sotto la sua superficie.

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