Soil magnetic susceptibility reflects soil moisture regimes and the adaptability of tree species to these regimes

摘要: Abstract Flooded, saturated or poorly drained soils are frequently anaerobic, leading to dissolution of the strongly magnetic minerals, magnetite and maghemite, a corresponding decrease in soil susceptibility (MS). In this study five temperate deciduous forests east-central Illinois, USA, mean surface MS was significantly higher adjacent upland tree species (31 × 10 −5  SI) than floodplain lowland (17 × 10  SI), when comparing regional with similar parent material loessal silt. Although sites differ average for each species, relative order means associated at different locations is similar. Lowland Celtis occidentalis L., Ulmus americana Acer saccharinum Carya laciniosa (Michx. f.) Loud., Fraxinus pennsylvanica Marsh. were lowest measured values overall site. Tree species’ flood tolerance rankings increased significantly, as declined, published having significant correlations same groups. The three classifications correlated all sites, but most Allerton Park, site widest range drainage classes values. Using measurements containing initial levels minerals can provide simple, rapid quantitative method classify according hydric regimes, including dry conditions, plant composition. Soil thus have capacity quantify continuum tolerances guide selection reforestation.