Rapid formation of vesicular pores has been observed following disturbance of vesicular (V) horizons. This study investigates the post‐disturbance recovery of V horizons and the impact on hydraulic properties. At nine study sites, infiltration rates were measured using a tension disk infiltrometer, and intact samples were collected for analysis using high‐resolution x‐ray computed tomography (CT). The V horizon material was then removed, crushed, replaced, and left to recover for 1 yr before repeating the infiltration measurement and CT analysis. Some recovery of vesicular and vugh porosity was observed at all of the study sites. However, the V horizons formed in the first year after disturbance were thinner, with smaller pores, and with a reduction in vesicle and vugh porosity from an average of 2.9% before disturbance to 0.4% after disturbance. The saturated hydraulic conductivity of the V horizons was also significantly lowered, from an average of 20 cm d⁻¹ prior to disturbance to 6.6 cm d⁻¹ at 1 yr after disturbance. Vesicle and vugh porosity formed 1 yr after disturbance was positively correlated with predisturbance vesicle and vugh porosity (R² = .57; P = 0.02) and sand percentage (R² = .51; P = .03) and negatively correlated with silt percentage (R² = .51; P = .03). No relationship was observed between post‐disturbance formation of vesicle and vugh porosity and precipitation events during the recovery period, clay percentage, CaCO₃ percentage, or saline‐sodic classification. V horizons show incipient development at 1 yr after disturbance, but porosity and hydraulic properties are significantly altered from their undisturbed state.

中文翻译：

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扰动对水泡层的孔隙度和水力特性的影响

已经观察到在水泡（V）层位紊乱之后快速形成水泡孔。这项研究调查了V层的扰动后恢复及其对水力特性的影响。在9个研究地点，使用张力盘式渗透计测量渗透率，并使用高分辨率X射线计算机断层扫描（CT）收集完整样品进行分析。然后将V层材料取出，压碎，更换，并放置1年，然后重复进行渗透测量和CT分析。在所有研究部位均观察到一定程度的囊泡和孔洞孔隙率恢复。但是，扰动后第一年形成的V层较薄，孔隙较小，囊泡和孔洞孔隙率从扰动前的平均2.9％降至扰动后的0.4％。扰动前^-1，扰动后1年至6.6 cm d ^-1。扰动后1年形成的囊泡和孔洞孔隙度与扰动前的囊泡和孔洞孔隙度（R ²  = .57；P  = 0.02）和砂含量（R ²  = .51；P  = .03）呈正相关，与淤泥含量呈负相关（R ²  ＝ .51；P  ＝ .03）。恢复期的小泡扰动形成与疏松孔隙度和降水事件，黏土百分比，CaCO ₃之间没有关系百分比或盐水分类。V层显示扰动后1年开始发展，但孔隙度和水力性质与未扰动状态相比发生了显着变化。