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生态学杂志 ›› 2004, Vol. ›› Issue (1): 56-59.

• 研究报告 • 上一篇    下一篇

科尔沁沙地人工小叶锦鸡儿植被水分入渗动态研究

阿拉木萨, 蒋德明, 裴铁璠   

  1. 中国科学院沈阳应用生态研究所, 沈阳, 110016
  • 收稿日期:2003-06-17 修回日期:2003-09-10 出版日期:2004-02-10
  • 通讯作者: 阿拉木萨,男,蒙古族.1969年生,助理研究员,在读博士,主要从事荒漠化防治及退化生态系统恢复研究,发表论文10篇.
  • 基金资助:
    中国科学院沈阳应用生态研究所知识创新工程重大资助项目(SCXZD0102-02)

Soil moisture infiltration dynamics in plantation of Caragana microphylla in Heerqin sandy land

Alamusa, JIANG Deming, PEI Tiefan   

  1. Institute of Applied Ecology , Chinese Academy of Sciences, Shenyang 110016, China
  • Received:2003-06-17 Revised:2003-09-10 Online:2004-02-10

摘要: 通过对科尔沁沙地不同年龄人工小叶锦鸡儿固沙植被降雨入渗的研究,阐明植被对沙地水分入渗的影响。结果表明,在降雨量43.4mm,降雨强度39mm·h-1时,降雨后120h内流动沙丘和5年生人工小叶锦鸡儿植被的水分入渗深度分别为180cm和150cm,15年生人工小叶锦鸡儿植被降雨入渗深度为100cm。流动沙丘降雨后土壤水分变化剧烈;有植被沙地降雨后土壤水分变化平缓,水分下渗浅.随着植被年龄的增加,浅层土壤截留降雨能力不断加强,最终形成不透水土层。降雨后短期内流动沙丘浅层土壤中含水量高,后期有植被沙丘深层土壤含水量高。

关键词: 铜尾矿, 重金属, 化学形态, 结缕草, 三叶草

Abstract: Soil water seeping at different aged plantation of Caragana microphylla had been studied in Heerqin sandy land after rainfall. This work presented the influence of plantation on soil water content of sandy land. The result indicated that during 120 hours after rainfall, quantity 43.4 mm and intension3.9 mm穐-1, the depth of water seeping of shifting sand dune and 5 years old plantation of Caragana microphylla was 180 cm and 150 cm,respectively. The depth of water seeping of 15 years old plantation was over 100 cm. The soil water content of shifting sand dune changed radicaly. Soil water content of sand dune covered with vegetation increased slowly, process of losing soil water content was longer, and the depth of water seeping was shallow. Along with age increase of vegetation, ability of water retention in shallow layer soil increased, and an anti-water layer was formed. Soil water content of shifting sand dune were high in a short time in shallow layer of soil after rainfall. Soil water content of vegetation were high in later period at deep layer of soil after rainfall.

Key words: Copper tailings, Heavy metal, Chemical forms, Zoysia japonica, Trifolium pratense

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