Identifying soil structure along headwater hillslopes using ground penetrating radar based technique
文献类型：期刊论文
| 作者 | HAN Xiao-le; LIU Jin-tao; ZHANG Jun; ZHANGZhi-cai |
| 刊名 | Journal of Mountain Science
 |
| 出版日期 | 2016-03 |
| 卷号 | 13期号:3页码:405-415 |
| 关键词 | Ground Penetrating Radar (GPR) Hillslope Soil structure |
| ISSN号 | 1672-6316 |
| 通讯作者 | LIU Jin-tao |
| 英文摘要 | Soil structure plays an important role in understanding soil attributes as well as hydrological processes. Effective method to obtain high quality soil map is therefore important for both soil science research and soil work ability improvement. However, traditional method such as digging soil pits is destructive and time-consuming. In this study, the structure of headwater hillslopes from Hemuqiao catchment (Taihu Basin, China) have been analyzed both by indirect (ground penetrating radar, GPR) and direct (excavation or soil auger) methods. Four transects at different locations of hillslopes in the catchment were selected for GPR survey. Three of them (#1, #2, and #3) were excavated to obtain full-scale soil information for interpreting radar images. We found that the most distinct boundary that can be detected by GPR is the boundary between soil and underlain bedrock. In some cases (e.g., 8-17m in transect #2), in which the in situ soil was scarcely affected by colluvial process, different soil layers can be identified. This identification process utilized the sensitive of GPR to capture abrupt changes of soil characteristics in layer boundaries, e.g., surface organic layer (layer #1) and bamboo roots layer (layer #2, contain stone fragments), illuvial deposits layer (layer #3) and regolith layer (layer #4). However, in areas where stone fragments were irregularly distributed in the soil profile (highly affected by colluvial and/or fluvial process), it was possible to distinguish which part contains more stone fragments in soil profile on the basis of reflection density (transect #3). Transect #4 (unexcavated) was used to justify the GPR method for soil survey based on experiences from former transects. After that, O horizon thickness was compared by a hand auger. This work has demonstrated that GPR images can be of a potential data source for hydrological predictions. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/14085]  |
| 专题 | 成都山地灾害与环境研究所_Journal of Mountain Science _Journal of Mountain Science-2016_Vol13 No.3 |
| 推荐引用方式 GB/T 7714 | HAN Xiao-le,LIU Jin-tao,ZHANG Jun,et al. Identifying soil structure along headwater hillslopes using ground penetrating radar based technique[J]. Journal of Mountain Science,2016,13(3):405-415. |
| APA | HAN Xiao-le,LIU Jin-tao,ZHANG Jun,&ZHANGZhi-cai.(2016).Identifying soil structure along headwater hillslopes using ground penetrating radar based technique.Journal of Mountain Science,13(3),405-415. |
| MLA | HAN Xiao-le,et al."Identifying soil structure along headwater hillslopes using ground penetrating radar based technique".Journal of Mountain Science 13.3(2016):405-415. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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