Freshwater marshes provide ecosystem services such as improving water quality by storing water and filtering nutrients from upland runoff, minimizing erosion and flooding by reducing stream and river velocity and peak flows, and carbon sequestration by storing organic matter for long extended periods of time. These ecosystem services have increased interest in the protection and restoration of marshes and soil properties and are an important consideration for successful restoration. This study was conducted in Indiana, USA, within the historical extent of the Grand Kankakee Marsh that once encompassed 202,343 ha, until the dredging of the Kankakee River from 1852 to 1917 to convert the marsh to cropland. Current (in 2019) soil properties (organic matter mass and concentration, bulk density, moisture content, and carbonate concentration) were compared between (1) marshes that were dredged and presently in other land-use categories such as cropland and forests, and (2) remnant marshes that were not impacted by dredging. On average, organic matter mass and concentration were not significantly different between dredged areas and marshes (p > 0.05). However, marshes tended to have lower bulk densities, greater moisture contents, and greater carbonate concentrations compared to dredged areas. The soil properties of remnant marshes in this study can be used to evaluate the success of marsh restoration efforts in regions with similar soils, climate, and land-use history.

淡水沼泽提供了生态系统服务，例如通过存储水和从高地径流中过滤养分来改善水质，通过降低水流和河流速度以及峰值流量来最大程度地减少侵蚀和洪水，以及通过长时间存储有机物来固碳。这些生态系统服务对保护和恢复沼泽和土壤特性的兴趣日益浓厚，是成功恢复生态系统的重要考虑因素。这项研究是在美国印第安纳州的大坎卡基沼泽历史范围内进行的，该沼泽曾经占地202,343公顷，直到从1852年到1917年疏Kan坎卡基河以将沼泽转化为农田。当前（2019年）的土壤特性（有机物的质量和浓度，堆积密度，水分含量，（1）疏mar的沼泽地和目前在其他土地利用类别（例如农田和森林）中的湿地和（2）不受疏ed影响的残留沼泽地之间进行了比较。平均而言，疏dr区和沼泽地的有机物质量和浓度没有显着差异（p  > 0.05）。然而，与疏areas区相比，沼泽地倾向于具有较低的堆积密度，较高的水分含量和较高的碳酸盐浓度。在这项研究中，残留沼泽的土壤特性可用于评估在土壤，气候和土地使用历史相似的地区进行的沼泽恢复工作的成功程度。