EFFECTS OF EROSION AND DEPOSITION ON PARTICLE SIZE DISTRIBUTION OF DEPOSITED FARMLAND SOILS ON THE CHINESE LOESS PLATEAU
文献类型：期刊论文
| 作者 | Zhao, Pei1 ; Shao, Ming An2; Omran, Wail3; Amer, Abdel-Monem Mohamed3
|
| 刊名 | REVISTA BRASILEIRA DE CIENCIA DO SOLO
 |
| 出版日期 | 2011-11-01 |
| 卷号 | 35期号:6页码:2135-2144 |
| 关键词 | soil texture stratification soil erodibility dam construction soil conservation |
| ISSN号 | 0100-0683 |
| 通讯作者 | Zhao, P（赵培） |
| 英文摘要 | Particle size distribution (PSD) in the soil profile is strongly related to erosion, deposition, and physical and chemical processes. Water cycling and plant growth are also affected by PSD. Material sedimented upstream of the dam constructions formed large areas of deposited farmland (DF) soils on the Chinese Loess Plateau (CLP), which has been the site of the most severe soil erosion in the world. Two DFs without tillage on the CLP were chosen to study the combined effect of erosion and check dams on PSD. Eighty-eight layers (each 10 cm thick) of filled deposited farmland (FDF) soils and 22 layers of silting deposited farmland (SDF) soils of each studied soil profile were collected and 932 soil samples were investigated using laser granulometry. The particle sizes were stratified in both DFs based on soil properties and erosion resistance. The obtained results of clay and silt fractions showed similar horizontal distribution, indicating parallel characteristics of erosion and deposition processes. Fine sand represented the largest fraction, suggesting the preferential detachment of this fraction. The most erodible range of particle sizes was 0.25-0.5 mm, followed by 0.2-0.25 mm in the studied soil profiles. The correlation between particle size and soil water contents tended to increase with increasing water contents in FDF. Due to the abundant shallow groundwater, the relationship between particle size and soil water content in SDF was lost. Further studies on PSD in the DF area are needed to enhance the conservation management of soil and water resources in this region. |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
| 类目[WOS] | Soil Science |
| 研究领域[WOS] | Agriculture |
| 关键词[WOS] | ORGANIC-MATTER ; WATER-CONTENT ; VARIABILITY ; FRACTIONS ; DAM |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000299438600028 |
| 公开日期 | 2013-06-25 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/5475]  |
| 专题 | 成都山地灾害与环境研究所_山地表生过程与生态调控重点实验室 |
| 作者单位 | 1.CAS, Inst Mt Hazards & Environm, Key Lab Mt Surface Proc & Ecol Regulat, Chengdu, Peoples R China 2.CAS, Inst Geog Sci & Nat Resources Res, Beijing, Peoples R China 3.Menoufia Univ, Fac Agr, Dept Soil Sci, Menoufia, Egypt |
| 推荐引用方式 GB/T 7714 | Zhao, Pei,Shao, Ming An,Omran, Wail,et al. EFFECTS OF EROSION AND DEPOSITION ON PARTICLE SIZE DISTRIBUTION OF DEPOSITED FARMLAND SOILS ON THE CHINESE LOESS PLATEAU[J]. REVISTA BRASILEIRA DE CIENCIA DO SOLO,2011,35(6):2135-2144. |
| APA | Zhao, Pei,Shao, Ming An,Omran, Wail,&Amer, Abdel-Monem Mohamed.(2011).EFFECTS OF EROSION AND DEPOSITION ON PARTICLE SIZE DISTRIBUTION OF DEPOSITED FARMLAND SOILS ON THE CHINESE LOESS PLATEAU.REVISTA BRASILEIRA DE CIENCIA DO SOLO,35(6),2135-2144. |
| MLA | Zhao, Pei,et al."EFFECTS OF EROSION AND DEPOSITION ON PARTICLE SIZE DISTRIBUTION OF DEPOSITED FARMLAND SOILS ON THE CHINESE LOESS PLATEAU".REVISTA BRASILEIRA DE CIENCIA DO SOLO 35.6(2011):2135-2144. |
入库方式： OAI收割
来源：成都山地灾害与环境研究所
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。