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应用生态学报 ›› 1998, Vol. 9 ›› Issue (4): 425-428.

• 研究论文 • 上一篇    下一篇

松嫩平原盐碱化草地治理方法的比较研究

郭继勋, 姜世成, 孙刚   

  1. 东北师范大学国家草地生态工程实验室, 长春130024
  • 收稿日期:1998-03-17 修回日期:1998-05-15 出版日期:1998-07-25 发布日期:1998-07-25
  • 基金资助:

    国家自然科学基金资助项目(39670528)

Comparative study on remedy ways of saline-alkali grassland in Songnen Plain

Guo Jixun, Jiang Shicheng, Sun Gang   

  1. National Laboratory of Grassland Ecological Engineering, Northeast Normal University, Changchun 130024
  • Received:1998-03-17 Revised:1998-05-15 Online:1998-07-25 Published:1998-07-25

摘要: 采用生物、化学和物理方法对盐碱化草地治理进行了比较研究。生物方法采用枯草处理; 化学方法采用石膏处理; 物理方法采用铺沙处理,种植羊草、野大麦和碱茅3种牧草。结果表明,3种方法均能降低土壤pH值、电导率和增加土壤含水率。在生物治理中,羊草和野大麦在枯草量达1500g·m-2, 碱茅在枯草量达1000g·m-2时,便可良好生长。在化学治理中,石膏施用量达1.25kg·m-2, 即可达到改良效果。在物理方法治理中,羊草和野大麦在沙层厚度为13cm, 碱茅在11cm时即可正常生长发育。

关键词: 盐碱化土壤, 改良, 枯草, 石膏, 沙土, 大数据, 生态系统服务流, 时空尺度, 分布式生态模型, 非生物流

Abstract: This study was designed to compare the biological, chemical and physical remedies on saline-alkali grassland.Three kinds of forage grass, Aneurolepidium chinense, Hordeum brevisubulatum and Puccinellia tenuiflora were planted in experimental sites, and soil was ameliorated with grass litter, gypsum amendment and sand bedding, respectively.The result showed that all of the three ways decreased soil pHand electrical conductivity, and increased soil water content.In biological treatment.Aneurolepidium chinense and Hordeum brevisubulatum could grow well with 1.5kg·m-2 of litter, and Puccinellia tenuiflora with 1.0kg·m-2 of litter.Applying 1.25kg·m-2 of gypsum could produce an efficient effect.A.chinense and H.brevisubulatum could normally grow with 13cm thickness of sand bedding, and P.tenuiflora with 11cm.

Key words: Saline-alkali soil, Improvement, Litter, Gypsum, Sandy soil, ecosystem service flow, spatial and temporal scale, distributed ecosystem model, abiotic flow, big data