Rainfall Physical Partitioning and Chemical Characteristics in Evergreen Coniferous and Deciduous Broadleaved Forest Stands in a High Nitrogen Deposition Region, China

Atmospheric rainfall is one of the major sources water and nutrient inputs in forest stands. Understanding atmospheric partitioning hydrochemical fluxes stands critical for management monitoring regional pollution, especially high N deposition regions. In this study, annual collections were implemented to investigate partitioning, element concentrations, an evergreen coniferous (ECF) stand, a deciduous broadleaved (DBF) open area field (OAF) region, China. Rainfall ECF DBF was partitioned into throughfall, stemflow, interception loss, which accounted 74.7%, 4.8%, 20.5% gross respectively; 79.8%, 5.8%, 14.4% respectively. physical chemical characteristics varied with stand type. The amount throughfall stemflow lower than that stand; loss higher stand. Element concentrations increased as passed through canopies region. pH NO3−-N, Cl−, SO42−-S those K+, Na+, Ca2+, Mg2+ NH4+-N inorganic 52.7 kg ha−1 year−1 OAF, 110.9 99.6 15.1% 19.2% present given similar meteorological conditions, differences between could largely be attributed their characteristics. results study will facilitate greater understanding nitrogen