Distribution characteristics of (CS)-C-137 in wind-eroded soil profile and its use in estimating wind erosion modulus
文献类型：SCI/SSCI论文
| 作者 | Hu Y. F. ; Liu J. Y. ; Zhuang D. F. ; Cao H. X. ; Yan H. M. ; Yang F. T. |
| 发表日期 | 2005 |
| 关键词 | wind erosion caesium-137 (Cs-137) distribution characteristic erosion model Inner Mongolia sediment redistribution cesium-137 england fallout cs-137 rates china land area |
| 英文摘要 | Due to its inert reaction in soil system and distinctive vertical distribution in soil profile, caesium-137 (Cs-137) has been used as a tracer to assess wind erosion. In this study, 62 soil samples were collected from 4 sampling sites in Taipusi County, Inner Mongolia; Caesium-137 activities for those soil samples were measured using a gamma-ray spectrometry in Sichuan University, Chengdu. Distribution pattern of Cs-137 in vertical soil profile was different for different land use and land cover types. Caesium-137 was distributed homogeneously in plow layer of cropland, and negatively exponential in low to medium cover grassland. Distribution pattern in high covered grassland was represented by a peak at 2-4 cm soil depth followed by a negative exponential curve. Based on those findings, simplified mass balance model was chosen to estimate the rate of wind erosion for cropland, while profile distribution model was used for grassland. Estimated wind erosion rates were 7990, 4270 and 1808 Mg(.)km(-2.)a(-1) for cropland, low cover grassland and medium cover grassland, respectively. Wind erosion intensity correlated negatively with plant cover. |
| 出处 | Chinese Science Bulletin |
| 卷 | 50 |
| 期 | 11 |
| 页 | 1155-1159 |
| 收录类别 | SCI |
| 语种 | 英语 |
| ISSN号 | 1001-6538 |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/23843]  |
| 专题 | 地理科学与资源研究所_历年回溯文献 |
| 推荐引用方式 GB/T 7714 | Hu Y. F.,Liu J. Y.,Zhuang D. F.,et al. Distribution characteristics of (CS)-C-137 in wind-eroded soil profile and its use in estimating wind erosion modulus. 2005. |
入库方式： OAI收割
来源：地理科学与资源研究所
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