耕作方式和土层厚度深度对紫色土胶体迁移的影响
耕作方式和土层厚度深度对紫色土胶体迁移的影响
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WANG, Hong , XU, Yaling , LIU, Haitao , LIN Chaowen and ZHANG, Qi
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Xinxiang City: Chinese Academy of Agricultural Sciences (CAAS) Farmland Irrigation Research Institute Editorial Office of Journal of Irrigation and Drainage
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Xinxiang City: Chinese Academy of Agricultural Sciences (CAAS) Farmland Irrigation Research Institute Editorial Office of Journal of Irrigation and Drainage
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【目的】研究不同的田间管理措施对不同粒径土壤胶体迁移的影响。【方法】通过微区试验,设置不同耕作措施(平作、垄作、平作+完整秸秆覆盖、垄作+完整秸秆覆盖、平作+粉碎秸秆覆盖、垄作+粉碎秸秆覆盖),并在平作条件下设置不同紫色土土层厚度(20、40、60、80、100、120 cm)处理,研究不同措施对地表径流和壤中流中产流量、不同粒径范围(0.45~2、0.22~0.45 μm、<0.22 μm)胶体出流浓度和流出量的影响。【结果】①秸秆还田覆盖处理能够显著减少地表径流的产流量,但是会增加壤中流的产流量,特别是完整秸秆还田覆盖;平作条件下,壤中流产流量会随着土壤深度的增加而减少。②垄作或垄作+秸秆覆盖处理与平作处理相比能够显著降低地表径流和壤中流中大粒径范围胶体的出流质量浓度和流出量,而且对壤中...
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耕作方式和土层厚度深度对紫色土胶体迁移的影响
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TN_cdi_wanfang_journals_ggps202003004
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https://devfeature-collection.sl.nsw.gov.au/record/TN_cdi_wanfang_journals_ggps202003004
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1672-3317
DOI
10.13522/j.cnki.ggps.2019269