Distribution characteristics of (CS)-C-137 in wind-eroded soil profile and its use in estimating wind erosion modulus
文献类型：期刊论文
| 作者 | Hu, YF ; Liu, JY(刘纪远); Zhuang, DF; Cao, HX; Yan, HM; Yang, FT
|
| 刊名 | CHINESE SCIENCE BULLETIN
 |
| 出版日期 | 2005 |
| 卷号 | 50期号:11页码:1155-1159 |
| 关键词 | Wind Erosion Caesium-137 (Cs-137) Distribution Characteristic Erosion Model Inner Mongolia |
| 通讯作者 | Liu JY |
| 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. |
| 学科主题 | Multidisciplinary Sciences |
| 公开日期 | 2011-05-27 |
| 源URL | [http://192.168.22.105/handle/311030/3189]  |
| 专题 | 资源利用与环境修复重点实验室_外文论文 |
| 推荐引用方式 GB/T 7714 | Hu, YF,Liu, JY,Zhuang, DF,et al. Distribution characteristics of (CS)-C-137 in wind-eroded soil profile and its use in estimating wind erosion modulus[J]. CHINESE SCIENCE BULLETIN,2005,50(11):1155-1159. |
| APA | Hu, YF,Liu, JY,Zhuang, DF,Cao, HX,Yan, HM,&Yang, FT.(2005).Distribution characteristics of (CS)-C-137 in wind-eroded soil profile and its use in estimating wind erosion modulus.CHINESE SCIENCE BULLETIN,50(11),1155-1159. |
| MLA | Hu, YF,et al."Distribution characteristics of (CS)-C-137 in wind-eroded soil profile and its use in estimating wind erosion modulus".CHINESE SCIENCE BULLETIN 50.11(2005):1155-1159. |
入库方式： OAI收割
来源：地理科学与资源研究所
浏览0
下载0
收藏0
其他版本
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。