| Cite this article: | 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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| 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 |
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