Unsustainable, agriculturally related practices of water usage have caused increasing groundwater depletion in the Alluvial Aquifer in the Lower Mississippi River Valley (LMRV) of eastern Arkansas. To avoid further depletion, one method of decreasing drawdown of the Alluvial Aquifer would be to adopt agricultural management practices that increase surface infiltration, which would increase the amount of water that could potentially recharge the aquifer. The objective of this study was to evaluate surface water infiltration and infiltration-related properties in fine-textured, loessial and alluvial Alfisols under different land managements in the LMRV Delta region of eastern Arkansas. Falling-head, double-ring infiltration measurements (n = 105) were conducted as a completely random experimental design between November 2015 and July 2016 in six current major landuses: native prairie, deciduous forest, coniferous forest, Conservation Reserve Program (CRP) grassland, conventional-tillage (CT) agriculture, and no-tillage (NT) agriculture. The overall infiltration rate for the 20-min measurement interval for the deciduous forest (1.17 mm min⁻¹) was 6.7 times greater (P < .05) than that for the other five landuses, which did not differ and averaged 0.17 mm min⁻¹. Overall infiltration rate was positively correlated (P < .05) with soil organic matter (SOM), total C, and total N contents and C:SOM ratio, while negatively correlated (P < .05) with estimated bulk density and extractable soil Na and Mg contents in the top 10 cm. Restoration of highly erodible agricultural lands in the LMRV should consider reforestation activities with deciduous species to contribute to improved infiltration capacity that can contribute to potentially greater groundwater recharge.

与农业有关的不可持续的用水习惯已导致阿肯色州东部下密西西比河谷（LMRV）的冲积含水层中的地下水枯竭增加。为避免进一步枯竭，减少冲积层含水量的一种方法是采用农业管理措施，以增加地表渗透，这将增加可能为含水层补给的水量。这项研究的目的是评估阿肯色州东部LMRV三角洲地区不同土地管理下质地细密的，黄土和冲积的Alfisol的地表水入渗和与入渗有关的性质。掉头 在2015年11月至2016年7月之间，对六种当前主要土地利用进行了双环渗透测量（n = 105），这是一个完全随机的实验设计：原生草原，落叶林，针叶林，自然保护区计划（CRP）草地，常规耕作（CT）农业和免耕（NT）农业。落叶林20分钟测量间隔的总入渗率（1.17 mm^-1）是其他五个土地用途的6.7倍（P <.05），后者没有差异，平均为0.17 mm min ^-1。总体入渗率与土壤有机质（SOM），总碳，总氮含量和C：SOM比率呈正相关（P <.05），而与估计的容重和可提取的土壤Na呈负相关（P <.05）。顶部10厘米处的镁含量。在LMRV中恢复高度易侵蚀的农业用地时，应考虑使用落叶树种进行重新造林活动，以提高渗透能力，从而可能增加地下水的补给。