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| 植物根系抗侵蚀指标及模型研究进展 |
| Progress of research on soil erosion resistance of plant roots and future prospects |
| 投稿时间：2018-11-14 |
| DOI：10.13254/j.jare.2018.0316 |
| 中文关键词: 根系，土壤抗侵蚀，表征指标，研究进展 |
| 英文关键词: root system, soil erosion resistance, characterization index, research progress |
| 基金项目:国家自然科学基金项目（41807521，41661101，41867015）；国家重点实验室开放基金（A314021402-1801）；陕西省青年科技新星人才计划项目（202057） |
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| 中文摘要: |
| 植物根系能显著抑制土壤侵蚀过程，实现固土护坡目标。随着植被重建进程的加快，表征根系抗侵蚀的指标和模型研究日趋合理完善。其中，根系指标选取集中反映在根系的形态特征和空间特征，而模型构建侧重理论型模型探索与修正。本文在综述植物根系抗侵蚀形态特征和空间特征指标及模型的基础上，发现目前应用的根系表征指标不能很好地关联根系形态特征和空间连接特征在坡面土壤抗侵蚀中的综合效应。为此，提出了“根系构架”的新概念，以期为坡面土壤侵蚀与植被配置的关系研究及模型参数优化提供一定的参考。 |
| 英文摘要: |
| Plant roots can significantly prevent soil erosion and aid in soil conservation and slope protection. With the rapid acceleration and advances in vegetation reconstruction the study of indicators and models of the root system's resistance to soil erosion is becoming increasingly reasonable and accurate, especially in the context of morphological and spatial characteristics of root systems. However, current characterization indexes cannot accurately capture and correlate the comprehensive effects of root morphological characteristics and spatial linkage characteristics with soil erosion resistance. Therefore, based on the review of morphological characteristics, spatial characteristics, and models of soil erosion resistance of plant root system, a new concept of "root framework" was proposed in this paper. This is expected to provide a new reference for the study of the relationship between soil erosion and vegetation allocation on slope lands. |
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