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Several studies shown that soil warming can affect availability of nutrient, increase soil Nmineralization and nitrate leaching, organic matter decomposition, and a slight temperatureincrease can produce a significant enhancement of activities. An increase in N mineralization insoil can be predicted under favourable moisture conditions and substrate availability, mainly inthose ecosystems where temperature is a limiting factor, which leads to increased NPP (netprimary production), increased N demand and ultimately to decrease N availability in the soil.An increasing temperature will also speed up the release of nutrients locked up in organic soilfraction and minerals, while decreasing soil moisture may limit this process. A higher rate ofweathering of nutrient rich rocks generally leads to higher base saturation of the soil and maintain higher soil pH, both characteristics favourable to plant growth. While elevated CO2 notthought to have a direct effect on weathering
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