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中国农学通报

中国农学通报 ›› 2015, Vol. 31 ›› Issue (26): 139-144.doi: 10.11924/j.issn.1000-6850.casb15060080

• 资源 环境 生态 土壤 气象 • 上一篇    下一篇

红壤结皮发育特征及其与土壤溅蚀的关系

胡 霞   

  1. (北京师范大学减灾与应急管理研究院/北京师范大学环境演变与自然灾害教育部重点实验室,北京 100875）
  • 收稿日期:2015-06-14 修回日期:2015-08-06 接受日期:2015-07-14 出版日期:2015-09-23 发布日期:2015-09-23
  • 通讯作者: 胡霞
  • 基金资助:
    国家自然科学基金“根系对灌丛化草地土壤大孔隙形成及水分运移的影响”(41471018)。

Growth Characteristic of Red Soil Crust and Its Relationship with Soil Splash Erosion

Hu Xia   

  1. (Academy of Disaster Reduction and Emergency Management, Beijing Normal University/Key Laboratory of Environmental Change and Natural Disaster of Ministry of Education, Beijing 100875)
  • Received:2015-06-14 Revised:2015-08-06 Accepted:2015-07-14 Online:2015-09-23 Published:2015-09-23

PDF (PC)

517

摘要： 研究红壤表土结皮发育特征及其与土壤溅蚀的关系，可为理解红壤的侵蚀机理提供理论依据。通过人工模拟降雨溅蚀试验，采样制作土壤切片，同时测定红壤溅蚀速率，观察分析红壤土表结构的变化特征以及与土壤溅蚀的关系。结果表明：土壤母质和质地是影响土壤结皮形成的主要因素。母质是花岗岩的红壤不易形成结皮，而母质是红砂岩和第四纪红色粘土的红壤较易形成结皮。石砾和粗砂含量较多的红壤不易形成结皮，而粉粒和粘粒含量越多，红壤表面越易形成结皮。

关键词: 农民专业合作社, 农民专业合作社, 品牌, 力量联合, 知识联合, 农业会展

Abstract: The study of the growth characteristic of red soil crust and its relationship with soil splash erosion could offer theoretical basis for the understanding of erosion mechanism. Through rainfall simulating test, soil slices were sampled and the erosion rate of red soil was measured, growth characteristic of red soil crust and its relationship with soil splash erosion were observed and analyzed. The results indicated that: soil parent material and soil texture were the main factors to the formation of crust. Soil with the parent material of granite was difficult to develop crust while it was more easily to develop crust when the parent material was red sandstone and quaternary red clay. Soil with more chad and coarse sand was difficult to form crust while it was easily to develop crust when there was more particle and clay.