Patterns of and controls over nitrogen inputs by green alder (Alnus viridis spp. fruticosa) to a secondary successional chronosequence in interior Alaska II - Soil Physical and Chemical Properties

In September of 1999 we collected soil cores to identify stage, replicate stand, canopy, and soil horizon patterns of soil physical (color, bulk density, pH) and chemical (N, C, P) parameters.

1999年9月，我们采集了土壤钻芯样品(soil cores)，旨在探明土壤物理参数（颜色、容重(bulk density)、酸碱度(pH)）与化学参数（氮(N)、碳(C)、磷(P)）在发育阶段、重复样地、冠层及土壤发生层(soil horizon)上的分布格局。