李诚志

• 1:新疆大学干旱生态环境研究所
• 2:绿洲生态教育部重点实验室

摘要(Abstract)：

盐结皮由盐结晶体胶结土壤颗粒形成于土壤上层,其广泛分布于干旱和半干旱区.盐晶体胶结土壤颗粒形成大团聚体显著地提高土壤抗风蚀能力,减少疏松地表粉尘释放量.自然盐结皮形状多样,盐结皮经历成长期、成熟期和消亡期演变阶段,三个阶段可相互转化.盐种类影响盐结皮类型,NaCl常形成表面盐结皮;Na_2SO_4形成次表层盐结皮且存在盐胀,常形成块状脊裂地表;混合盐则可以减轻盐胀,形成表面和次表层混合结皮.表面盐结皮整体覆于土壤表面,其抗风蚀性能优于块状脊裂次表层盐结皮.盐晶形状和阻水性能对土壤风蚀也存在较大影响.盐结皮及其抗土壤风蚀研究取得了一定进展,但在抵抗风沙灾害方式及其形成机理、盐性特征方面仍需进一步开展研究.

关键词(KeyWords)： 盐结皮;表面盐结皮;次表层盐结皮;演变;土壤风蚀

Abstract:

Keywords:

基金项目(Foundation): 新疆自然科学基金项目(2014211B012)

作者(Author): 李诚志

DOI: 10.13568/j.cnki.651094.2018.04.003

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