皖西大别山区土壤抗蚀与抗冲特征及其影响因素
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S157.1

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安徽省自然科学基金水科学联合基金项目“经果林地坡面水系整治与土壤侵蚀防治技术研究”(2308085US14); 安徽省(水利部淮河水利委员会)水利科学研究院青年科技创新计划项目(KY202102; KY202304); 水利水资源安徽省重点实验室开放研究基金项目(2023SKJ03)


Characteristics of soil resistance to erosion and scouring, and their influencing factors in Dabie Mountains of western Anhui Province
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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,揭示影响该区土壤抗侵蚀能力的主要因素,为该区水土流失治理工作提供科学指导。[方法] 基于文献查阅及实地调研,选择2种典型土地利用方式下的4种典型土壤。利用原位冲刷和室内试验,观测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,其抗冲性显著高于园地,而抗蚀性略有差异。③5~2 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,在今后研究中应同时考虑土壤抗冲性及抗蚀性以综合反映土壤抗蚀能力。

    Abstract:

    [Objective] The anti-erosion and anti-scouring abilities of soil under different land uses and soil types in the Dabie Mountains of western Anhui Province in China were evaluated, in order to identify the predominant factors influencing soil erosion resistance and provide scientific guidance for soil and water conservation management in the region. [Methods] Four representative soil and two land use types were selected based on the literature review and field investigations. The resistance to erosion and scouring, and physical properties of each soil were measured by field-scouring and laboratory analyses. [Results] ①The anti-scouring ability of the examined soils ranked as yellow-brown soil > purple soil > brown soil > regosols soil. The anti-erosion ability ranked as purple soil > regosols soil > brown soil > yellow-brown soil. ② Forest soil exhibited superior physical characteristics with greater resistance to scouring compared to tea garden soil. These soils varied only slightly in their anti-erosion behaviors. ③The content of water-stable aggregates in the 5—2 mm and 1—0.5 mm size ranges was the predominant factor influencing the erosion and scouring resistance under different land uses and soil types. [Conclusion] The content of water-stable aggregates serves as an ideal indicator for assessing soil erosion resistance in the Dabie Mountains region of western Anhui Province. Future research should simultaneously evaluate both erosion and scouring resistance to provide a comprehensive understanding of integrated soil erosion resistance.

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张卫,刘亚,夏小林,刘刚.皖西大别山区土壤抗蚀与抗冲特征及其影响因素[J].水土保持通报,2025,45(3):10-15

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  • 收稿日期:2025-01-13
  • 最后修改日期:2025-04-03
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  • 在线发布日期: 2025-06-28
  • 出版日期: 2025-06-15