The Effects of Timing of Inundation on Soil Physical Quality in the Water-Level Fluctuation Zone of the Three Gorges Reservoir Region, China
文献类型：期刊论文
| 作者 | Cui, Junfang1,2 ; Tang, Xiangyu1; Zhang, Wei3,4; Liu, Chuandong1,5
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| 刊名 | VADOSE ZONE JOURNAL
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| 出版日期 | 2018 |
| 卷号 | 17期号:1页码:UNSP 180043 |
| ISSN号 | 1539-1663 |
| DOI | 10.2136/vzj2018.03.0043 |
| 产权排序 | 1 |
| 英文摘要 | With the completion of the Three Gorges Dam, soils between the elevations of 145 and 175 m are exposed or submerged seasonally. Soil hydrological and physical properties are changed. A detailed investigation was performed to examine the influence of the timing of inundation on soil physical quality. Samples were collected in the water level fluctuation (WLF) zone and non-WLF zone in Zhongxian County, Chongqing. Soil samples were taken from depths of 0 to 10, 10 to 20, 20 to 30, and 30 to 40 cm. Soil structural quality was assessed by the visual evaluation of soil structure (VESS) method in situ; mean weight diameter (MWD) and mass fractal dimension (D-m) were measured to represent soil aggregate stability; and the soil water retention curve and computed microtomography (micro-CT) images were used to show soil pore networks. Our findings show a deterioration of soil structure indicated by a high structural quality (Sq) score in VESS (the higher the Sq score, the worse the soil structural quality) and a decline in soil aggregate stability indicated by low MWD and low D-m in the WLF zone. The data from both the soil water retention curve and micro-CT images demonstrate a deterioration of soil physical quality through decreased porosity and a shift of drainable micropores (0.1 < radii < 125 mu m) to non-drainable micropores (radii < 0.1 mu m) in the WLF zone of the Three Gorges Reservoir. The potential of environmental hazards of soil in WLF zone was also investigated. |
| 语种 | 英语 |
| WOS记录号 | WOS:000447613700001 |
| 源URL | [http://ir.imde.ac.cn/handle/131551/24045]  |
| 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 |
| 通讯作者 | Tang, Xiangyu |
| 作者单位 | 1.Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu; 610041, China; 2.Univ. of Chinese Academy of Sciences, Beijing; 100049, China; 3.College of Tourism and Land Resource, Chongqing Technology and Business Univ., Chongqing; 400067, China; 4.Dep. of Soil Science, Univ. of Trier, Trier; 54286, Germany; 5.College of Material and Chemical Engineering, Hainan Univ., Haikou; 570228, China |
| 推荐引用方式 GB/T 7714 | Cui, Junfang,Tang, Xiangyu,Zhang, Wei,et al. The Effects of Timing of Inundation on Soil Physical Quality in the Water-Level Fluctuation Zone of the Three Gorges Reservoir Region, China[J]. VADOSE ZONE JOURNAL,2018,17(1):UNSP 180043. |
| APA | Cui, Junfang,Tang, Xiangyu,Zhang, Wei,&Liu, Chuandong.(2018).The Effects of Timing of Inundation on Soil Physical Quality in the Water-Level Fluctuation Zone of the Three Gorges Reservoir Region, China.VADOSE ZONE JOURNAL,17(1),UNSP 180043. |
| MLA | Cui, Junfang,et al."The Effects of Timing of Inundation on Soil Physical Quality in the Water-Level Fluctuation Zone of the Three Gorges Reservoir Region, China".VADOSE ZONE JOURNAL 17.1(2018):UNSP 180043. |
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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