Spatial variation and radiocesium flux of litterfall in hardwood-pine mixed forest and cedar plantations based on long-term monitoring data

被引：0

作者：

Keigo Hisadome

Yuichi Onda

Nicolas Loffredo

Ayumi Kawamori

Hiroaki Kato

机构：

[1] Asia Air Survey Co.,Environmental Regeneration Section, Environment & Energy Technical Department

[2] Ltd,Graduate School of Life and Environmental Sciences

[3] University of Tsukuba,Center for Research in Isotopes and Environmental Dynamics

[4] University of Tsukuba,undefined

来源：

Journal of Radioanalytical and Nuclear Chemistry | 2020年 / 326卷

关键词：

Radiocesium concentration; Radiocesium deposition; Litterfall amount; Canopy closure; Seasonal change;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

Long-term monitoring revealed that radiocesium (137Cs) deposition that fall from the canopy with litterfall was characterized by forest types, seasonal change, and canopy closure (CC). The sum of autumn and spring 137Cs deposition values divided by the sum of summer and winter tended to have higher values in the cedar forest. The angle of view α when the correlation between the CC size and litterfall amount is strongest, was 5° or less in the young cedar forest, but varied in the hardwood–pine mixed forest. This indicates the spatial distribution of 137Cs deposition has heterogeneity and homogeneity in each forest.

引用

页码：1491 / 1504

页数：13