title: Atmospheric (210)Pb as a tracer for soil organic carbon transport in a coniferous forest.
abstract: Core soils and falling litter samples were collected in a Japanese cypress forest (Chamaecyparis obtusa) to determine the litter-fed (210)Pbex and organic carbon transfer from the forest canopy to soil and their subsequent distribution. Of the canopy residing (210)Pbex pool, litterfall annually transports 53% to the forest floor while it adds 117 g m(-2) per year of organic carbon to the forest soil, implying that litterfall dynamics can influence the distribution of (210)Pbex and soil organic carbon (SOC). (210)Pbex and SOC showed identical profile shapes and strong correlation in spatial as well as along the soil depth, indicating that both are affected by a similar process. Given the ubiquitous natural source of (210)Pbex, it is plausible to infer that radiolead can be a possible tracer to study the SOC redistribution at regional and global scales.
authors.affiliation: Graduate School of Life and Environmental Sciences, Department of integrative environmental science, University of Tsukuba, 305-8572, Ibaraki, Japan. teramaget@yahoo.com.
authors.forename: Mengistu T
authors.initials: MT
authors.lastname: Teramage
authors.forename: Yuichi
authors.initials: Y
authors.lastname: Onda
authors.forename: Yoshifumi
authors.initials: Y
authors.lastname: Wakiyama
authors.forename: Hiroaki
authors.initials: H
authors.lastname: Kato
authors.forename: Takashi
authors.initials: T
authors.lastname: Kanda
authors.forename: Kenji
authors.initials: K
authors.lastname: Tamura
mesh_terms: D000393:Air Pollutants / Q000032:analysis*; D001272:Atmosphere / Q000737:chemistry*; D002244:Carbon / Q000032:analysis*; D004784:Environmental Monitoring; D065928:Forests; D007856:Lead Radioisotopes / Q000032:analysis*; D012987:Soil / Q000737:chemistry; D012989:Soil Pollutants / Q000032:analysis*; D064028:Tracheophyta
chemical_list: D000393:Air Pollutants; D007856:Lead Radioisotopes; D012987:Soil; D012989:Soil Pollutants; D002244:Carbon