塔里木大学学报

采用单因素实验,分析不同浓度木醋液对土壤水分运动参数影响。由土壤水分特征曲线进行拟合分析,发现土壤水分特征曲线由高到低依次为800倍、600倍、400倍、1 000倍、ck对照组、1 200倍;且800倍实验组持水能力最强,1 200倍实验组持水能力最弱。由土壤饱和导水率得出,木醋液可以有效的改良盐碱土壤物理性质,且木醋液稀释1 000倍的时候对盐碱土壤的饱和导水率改良效果最优。对土壤非饱和导水率进行拟合分析,由拟合曲线可知,木醋液对盐碱土壤改良具有一定效果,在土壤容积含水率高35%时改良效果最明显。对土壤水分扩散率进行拟合分析,发现木醋液稀释倍数在400倍、600倍、800倍时提高了盐碱土壤水分扩散率,而木醋液稀释倍数在1 000倍、1 200倍时降低了盐碱土壤水分扩散率。

Using single factor experiment,the effects of different concentrations of wood vinegar on soil water movement parameters were analyzed. By the soil water characteristic curve fitting analysis,found that the soil water characteristic curve from high to low in order to 800 times,600 times,400 times,1 000 times,the CK group,1 200 times; and 800 times experimental group holding water capacity of the strongest,1 200 times experimental group holding water ability is the weakest. By soil saturated water rate is derived,wood vinegar liquid can effectively improving saline alkali soil and wood vinegar liquid diluted 1 000 times of saline alkali soil saturated water improvement effect of optimal rate. The unsaturated soil guide water rate to carry on the fitting analysis and known by the fitting curve,wood vinegar liquid on the improvement of saline alkali soil has certain effect,the most significant improvement in volumetric soil water rate is higher than 35%. Of soil water diffusivity fitting analysis. It is found that the wood vinegar liquid dilution in 400 times,600 times,800 times improves the saline alkali soil water diffusivity,and wood vinegar diluted in a 1 000 times,1 200 times reduces the saline alkali soil water diffusivity.