| 引用本文: | 郭加伟,苏智冉,张锦豪,等.砾石对土壤水文过程影响研究进展与展望[J].灌溉排水学报,0,():-. |
| guojiawei,Su zhi ran,zhang jin hao,et al.砾石对土壤水文过程影响研究进展与展望[J].灌溉排水学报,0,():-. |
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| 摘要: |
| 【目的】通过综述砾石对土壤水文过程影响，总结石质土壤水文过程研究存在的问题与挑战，展望未来研究方向。【方法】本文主要介绍了砾石结构（覆盖度、含量、大小等）对土壤入渗、径流、壤中流、优先流和水分蒸发等土壤水文过程的影响，并分析了目前用于模拟和定量表征砾石对土壤水文过程影响的数学模型研究进展。【结果】现有研究结果显示，砾石对土壤水文过程的影响机制尚不明确，现有研究方法不能满足对砾石与土壤水文过程之间错综复杂关系的研究，土壤砾石结构的定量化、异质性及土壤水文参数的定量表达还未被纳入数学模型参数，缺乏多要素、多尺度的砾石—水文过程模拟，没有准确可靠的尺度转换理论和方法，无法实现不同尺度上砾石和水文信息的转换。【结论】如何将新技术引入到研究中，更新研究方法、明确影响机理、丰富研究内涵、提高数据精度，是该研究要解决的关键问题；深层土壤中的砾石特征及其对壤中流和优先流的影响研究、不同尺度上砾石和水文信息的转换以及多尺度数学模型的建立未来研究的重要方向。 |
| 关键词: 砾石;入渗;地表径流;壤中流;优先流;蒸发 |
| DOI： |
| 分类号:S152.7 |
| 基金项目:国家自然科学(41807174)；河南省教育厅重点项(18A220002)；河南省科技攻关项目(182102311008) |
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| Influence of Rock Fragment on Soil Hydrological Processes：Progresses and perspectives |
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guojiawei, Su zhi ran, zhang jin hao, niu chen yu, zeng qi jie, zhang zhi hua
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College of Forestry, Henan Agricultural University
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| Abstract: |
| 【Objective】By reviewing the impact of rock fragment on soil hydrological processes, it summarises the problems and challenges in the study of hydrological processes in stony soils and looks at future research directions.【Method】In this paper, the effects of rock fragment structure (coverage, content, size, etc.) on soil infiltration, runoff, subsurface flow, preferential flow and evaporation, and the progress of mathematical models used to simulate and quantitatively characterize the effects of rock fragments on soil hydrological processes was analyzed. 【Result】Existing research results show that the mechanism of rock fragments influence on soil hydrological process is not clear, and the existing research methods can’t meet the complicated relationship between gravel and soil hydrological process. The quantification and heterogeneity of rock fragments structure, quantitative expression of soil hydrological parameters have not been incorporated into the mathematical model parameters, and there is a lack of multi-element, multi-scale rock fragments -hydrological process simulations, and no accurate and reliable scale conversion theory and methods for converting rock fragments and hydrological information at different scales. 【Conclusion】How to introduce new technologies into the research, update the research methodology, clarify the impact mechanism, enrich the research connotation and improve the accuracy of data are the key problems to be solved in this research. The study of rock fragments characteristics in deep soil and its influence on subsurface flow and preferential flow, conversion of gravel and hydrological information at different scales and establishment of multi-scale mathematical model are important direction of future research. |
| Key words: rock fragments; infiltration; runoff; subsurface flow; preferential flow; evaporation |
