您好，欢迎访问广西农业科学院 机构知识库！

Effects of Different Reclamation Years and Modes on Soil Moisture Transport Pathways and Permeability Characteristics in an Open-Pit Mining Area in Guangxi

文献类型： 外文期刊

作者： Wang, Song 1 ; Gan, Lei 1 ; Zhang, Yu 3 ; Gao, Zhibo 3 ; Luo, Zhenhong 3 ; Zhou, Haojie 3 ; Zhang, Hang 3 ; Zhang, Hongxia 1 ; Huang, Taiqing 4 ;

作者机构： 1.Guilin Univ Technol, Collaborat Innovat Ctr Water Pollut Controland Wat, Guilin 541006, Peoples R China

2.Guilin Univ Technol, Guangxi Key Lab Theory & Technol Environm Pollut C, Guilin 541006, Peoples R China

3.Guilin Univ Technol, Coll Environm Sci & Engn, Guilin 541006, Peoples R China

4.Guangxi Acad Agr Sci, Agr Resource & Environm Res Inst, Nanning 530007, Peoples R China

关键词： open-pit mine area; reclamation years; reclamation modes; permeability; 3d reconstruction

期刊名称：WATER （ 影响因子：3.4； 五年影响因子：3.5 ）

ISSN：

年卷期： 2024 年 16 卷 9 期

页码：

收录情况： SCI

摘要： The microstructural characteristics of reclaimed soil in Guangxi's bauxite mining area play a pivotal role in determining soil reclamation quality, yet they remain poorly understood. To explore the impact of varying reclamation years and modes on pore structure characteristics in this region, we selected four reclamation regions: grassland reclamation with 2 years (RG2a), grassland reclamation with 10 years (RG10a), bare ground reclamation with 2 years (RW2a) and bare ground reclamation with 10 years (RW10a). Utilizing X-ray CT technology, we scanned soil columns within a 30 cm depth to analyze pore distributions using Avizo 2020 software combined with ImageJ 1.53c and its plugins. The findings revealed a significant increase in the number of 2D and 3D macropores by 1.09% and 88.89% in RG10a compared to RG2a, as well as 39.01% and 13.33% in RG10a compared to RW10a, respectively. Furthermore, RG10a was observed to be more effective in enhancing the rounding rate of macropores and mesopores, as well as average branch length and density. Additionally, RG10a demonstrated a greater capacity to increase porosity and connectivity while reducing curvature and specific surface area among the three-dimensional parameters. The 3D reconstruction illustrated that RG modes exhibited a more abundant distribution of macropores compared to RW modes and 10a modes showed a higher presence of macropores than 2a modes, which displayed a tilted laminar pattern. Soil moisture movement simulations conducted through Avizo 2020 under various modes indicated that RG modes presented a more extensive capacity for vertical flow, while 10a modes displayed more abundant flow lines and a higher infiltration rate (K) compared to 2a modes. In conclusion, prolonged reclamation years favoring grassland reclamation modes could enhance water and nutrient transport pathways toward traditional agricultural soil.

  • 相关文献
作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：广西农业科学院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台