GYIG OpenIR  > 环境地球化学国家重点实验室
A 137Cs erosion model with moving boundary
Chuan Yin;Hongbing Ji
2015
发表期刊Journal of Environmental Radioactivity
卷号150页码:152-158
摘要

A novel quantitative model of the relationship between diffused concentration changes and erosion rates using assessment of soil losses was developed. It derived from the analysis of surface soil 137Cs flux variation under persistent erosion effect and based on the principle of geochemistry kinetics moving boundary. The new moving boundary model improves the basic simplified transport model (Zhang et al., 2008), and mainly applies to uniform rainfall areas which show a long-time soil erosion. The simulation results for this kind of erosion show under a long-time soil erosion, the influence of 137Cs concentration will decrease exponentially with increasing depth. Using the new model fit to the measured 137Cs depth distribution data in Zunyi site, Guizhou Province, China which has typical uniform rainfall provided a good fit with R2 = 0.92. To compare the soil erosion rates calculated by the simple transport model and the new model, we take the Kaixian reference profile as example. The soil losses estimated by the previous simplified transport model are greater than those estimated by the new moving boundary model, which is consistent with our expectations.

关键词137cs a Quantitative Model moving-boundary erosion Rates
收录类别SCI
语种英语
文献类型期刊论文
条目标识符http://ir.gyig.ac.cn/handle/42920512-1/9556
专题环境地球化学国家重点实验室
作者单位1.Beijing Municipal Key Laboratory of Resource Environment and GIS, College of Resource Environment and Tourism, Capital Normal University, Beijing 100048, China
2.State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, China
推荐引用方式
GB/T 7714
Chuan Yin;Hongbing Ji. A 137Cs erosion model with moving boundary[J]. Journal of Environmental Radioactivity,2015,150:152-158.
APA Chuan Yin;Hongbing Ji.(2015).A 137Cs erosion model with moving boundary.Journal of Environmental Radioactivity,150,152-158.
MLA Chuan Yin;Hongbing Ji."A 137Cs erosion model with moving boundary".Journal of Environmental Radioactivity 150(2015):152-158.
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
A 137Cs erosion mode(726KB)期刊论文作者接受稿开放获取CC BY-NC-SA浏览 请求全文
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Chuan Yin;Hongbing Ji]的文章
百度学术
百度学术中相似的文章
[Chuan Yin;Hongbing Ji]的文章
必应学术
必应学术中相似的文章
[Chuan Yin;Hongbing Ji]的文章
相关权益政策
暂无数据
收藏/分享
文件名: A 137Cs erosion model with moving boundary.pdf
格式: Adobe PDF
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。