不同浓度梯度生物炭对土壤水分入渗的模型拟合研究
Model Fitting of Biochar with Different Concentration Gradients on Soil Water Infiltration
摘要: 针对粘质生土土壤水分入渗差、持水能力低、水分利用效率低等问题，采用田间试验与室内模拟土柱实验结合的方法，开展了生物炭对粘质生土土壤水分入渗响应的研究，结果表明生物炭的添加明显提高了土壤持水性和保水性，且生物炭添加量越高土壤持水性和保水性提高越明显且土壤水分入渗过程的模拟效果表现为Kostiakov模型最优，为今后生物炭改良土壤以及生土快速熟化提供科学依据和理论支撑。
Abstract:
To address the problems of poor water infiltration, low water holding capacity and low water use efficiency of clayey raw soil, we conducted a study on the response of biochar to water infiltration in clayey raw soil by combining field experiments and indoor simulated soil column experiments. The results showed that the increase of soil water-holding and water-holding capacity was obvious with the addition of biochar, and the higher the amount of biochar added, the more obvious the improvement of soil water retention and water retention. The simulation effect of soil water infiltration process showed the best Kostiakov model. Biochar provides scientific basis and theo-retical support for soil improvement and rapid soil aging.
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