Soil Degradation and the Global Food System’s Hidden Vulnerability

土壤退化与全球粮食系统的隐性脆弱性

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Topsoil loss averages 30 tons per hectare annually worldwide—equivalent to losing one millimeter of fertile horizon every five years, often faster than natural replenishment.
Industrial monocropping depletes soil organic carbon at 0.2% per year, reducing water-holding capacity by 1.4% annually and increasing irrigation demand disproportionately.

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