皖西大别山区土壤抗蚀与抗冲特征及其影响因素研究
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1.安徽省水科学与智慧水利重点实验室;2.西北农林科技大学 水土保持科学与工程学院水土保持研究所

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S157

基金项目:

安徽省自然科学基金水科学联合基金项目(2308085US14);水利水资源安徽省重点实验室开放研究(2023SKJ03)


Research on the characteristics of soil anti-erosion and anti-scouring abilities and their influencing factors in Dabie Mountains of western Anhui Province
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College of Soil and Water Conservation Science and Engineering Institute of Soil and Water Conservation,Northwest A F University,Yangling

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    摘要:

    [目的]评估皖西大别山区不同土地利用方式下不同土壤的抗蚀与抗冲特征,并揭示影响该区土壤抗侵蚀能力的主要因素。[方法]基于文献查阅及实地调研,选择了2种典型土地利用方式下的4种典型土壤。利用原位冲刷结合室内试验,测量各土壤抗蚀和抗冲性及其主要物理性质。[结果](1)不同土壤抗冲性表现为:黄棕壤>紫色土>棕壤>粗骨土,抗蚀性表现为:紫色土>粗骨土>棕壤>黄棕壤。(2)林地土壤具有更好的物理性质,其抗冲性大于园地,而抗蚀性略有差异。(3)5-2 mm及1-0.5 mm水稳性团聚体含量是影响不同土壤不同土地利用方式下土壤抗蚀抗冲性差异的主导因素。[结论]水稳性团聚体含量是评价皖西大别山区土壤抗侵蚀能力的理想指标。研究结果可为皖西大别山区水土流失治理提供科学依据。

    Abstract:

    [Objective] Evaluate the soil anti-erosion and anti-scouring abilities under different land uses and soil types in the Dabie Mountains of western Anhui Province, and elucidate the primary factors influencing soil erosion resistance in this region. [Methods] Four representative soil and two land use types were selected based on literature review and field investigations. Through field-scouring combined with laboratory experiments, the soil anti-erosion ability, anti-scouring ability and soil physical properties of each soil were measured. [Results] (1) The varying soil anti-scouring ability is demonstrated as follows: Yellow-brown soil > Purple soil > Brown soil > Regosols soil. The soil anti-erosion ability ranks as: Purple soil > Regosols soil > Brown soil > Yellow-brown soil. (2) Forest soil exhibits superior physical characteristics, with higher soil anti-scouring ability compared to tea garden soil, while the relationship between their anti-erosion ability shows slight variations. (3) The content of water-stable aggregates in the 5-2 mm and 1-0.5 mm sizes serves as the predominant factor influencing the soil anti-erosion and anti-scouring abilities under different land uses and soil types. [Conclusion] The content of water-stable aggregates serves as an ideal indicator for assessing the soil erosion resistance in the Dabie Mountains region of western Anhui Province. These research findings provide a scientific foundation for soil erosion control in the Dabie Mountains region of western Anhui Province.

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  • 收稿日期:2025-01-13
  • 最后修改日期:2025-04-03
  • 录用日期:2025-04-03
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