中国沙漠 ›› 1991, Vol. 11 ›› Issue (1): 13-21.

• 论文 • 上一篇    下一篇



  1. 中国科学院兰州沙漠研究所
  • 出版日期:1991-03-20 发布日期:1991-03-20

Thirty-five years of introduction and plantation of sand-fixing plants on moving sand dunes in Shapotou area

Liu Yingxin   

  1. Institute of Desert Research, Academia Sinica, Lanzhou
  • Online:1991-03-20 Published:1991-03-20

摘要: 通过对沙坡头流动沙丘35年来不灌溉条件下引种栽植固沙植物工作的回顾提出:(1)固沙植物选择的原则: 国外引种需在温带范围内的沙地, 能忍受-25℃的低温。国内引种应在半荒漠、荒漠区内, 年雨量在300mm以下的沙地。不采用任何乔木和湿生系列的种。既要选择先锋种又要有演替中期种。能适于流动沙丘迎风坡混交或背风坡栽植。(2)引种固沙植物成功的标准: 成活率较高, 在70%以上。生长迅速, 能在数年内起固沙作用并能开花、结果。寿命较长, 在10年以上。能在迎风坡形成人工植被或在背风坡起固沙作用。最好能天然更新。

关键词: 沙坡头地区, 固沙植物, 引种栽培

Abstract: Through 35 years of introduction and plantation of sand-fixing plants on moving sand dunes under non-irrigated condition in Shapotou area, the following principles for the selection of sand-fixing spesies have been established:(1)As for the foreign species they must be introduced from temperate sandy lands and can withstand a lower temperature as low as -25℃, whereas for the domestic species they must be introduced from sandy lands in semi-desert and desert zones with a rainfall of less than 300mm. Both pioneer and mid-stage plants in the successional processes should be considered in the selection work for the planting on either windward or leeward slopes of moving sand dunes, but any tree species or species relating to hydroseres cannot be chosftd.(2) Standards for the successful intrduetion should include: higher survival rate, above70%, rapid growth, and persisting in the sand-fixing function in several years, and can produce flowers and seeds. In addition, they should have longer life-span, say above 10 years, and they can be used to establish artificial vegetation on upwind slopes or fix sand on leeward slopes. It would be best if they can regenerate naturally.