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植硅体态碳(Phyt OC)在植硅体的“保护”作用下,可以长时间地保存在土壤中,是一种长期有效的生物固碳机制.本文通过在盆栽水稻中施加不同水平的岩粉来探讨其对植硅体态碳增汇的影响.通过微波消解法提取植硅体和氢氟酸溶解生物硅测定其植硅体封存的碳含量.结果表明,施加岩粉显著地提高了水稻各器官中植硅体和植硅体态碳含量及其植硅体碳的产生通量.因此,硅营养调控机制(外施硅肥)是一种提高农田生态系统(尤其是稻田)植硅体封存有机碳的潜力、增加土壤中Phyt OC积累速率的有效措施.
Phyt OC is a long-term and effective bio-carbon sequestration mechanism because it can be stored in the soil for a long time under the “protection” effect of phytoliths.Through the application of different levels of potted rice Of the rock powder to explore its effect on the carbon sink of the silicon implant body carbon content by microwave digestion extraction of phytoliths and hydrofluoric acid dissolved biosilicon measured the silicon content of the silicon implant sealed the results show that the application of rock powder significantly increased Therefore, the regulation mechanism of silicon nutrition (external application of silicon fertilizer) is a method to improve the plant ecosystem (especially paddy field) plantation Potential of Sealing Organic Carbon in Silica and Effective Measures to Increase Phyt OC Accumulation in Soil.