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In-situ formation of CaAl-layered double hydroxides with attapulgite for synergistic remediation of soda saline-alkali soil
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DOI：10.1016/j.still.2026.107240.png)
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Abstract
En 中文
• Novel amendment triggers in-situ CaAl-LDH formation, rapidly immobilizing soil alkalinity and carbonate. • Rapidly reduces soil pH by 2.7 units and carbonate by 83%, while cutting exchangeable Na⁺ by 76%. • Soil structure improves significantly, increasing macroaggregates 17-fold and organic matter stability by 33%. • Immediate planting is enabled, boosting pakchoi height 218% and fresh weight 70% in pots.
Keywords:
CaAl-LDH
attapulgite
soda saline-alkali soil
soil remediation
pH reduction
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6.8
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5.6K
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2.6W
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