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中国沙漠 ›› 2010, Vol. 30 ›› Issue (2): 235-240.

• 沙漠与沙漠化 • 上一篇    下一篇

石羊河中下游荒漠景观生态变化及调控机制研究

刘世增1,2, 孙保平1, 李银科2, 富晓松3   

  1. 1.北京林业大学 水土保持学院, 北京 100083; 2.甘肃省治沙研究所 甘肃省荒漠化防治重点实验室, 甘肃 兰州 730070; 3.甘肃农业大学 林学院, 甘肃 兰州 730070
  • 收稿日期:2009-03-15 修回日期:2009-05-20 出版日期:2010-03-20 发布日期:2010-03-20

Desert Landscape Change and Regulation Mechanism in Middle and Lower Reaches of Shiyang River, Gansu Province

LIU Shi-zeng1,2, SUN Bao-ping1, LI Yin-ke2, FU Xiao-song3   

  1. 1.Institute of Soil and Water Conservation of Beijing Forestry University, Beijing 100083, China; 2.Gansu Key Laboratory of Desertification Combating and Gansu Desert Control Research Institute, Lanzhou 730070, China; 3.College of Forestry Science of Gansu Agricultural University, Lanzhou 730070, China
  • Received:2009-03-15 Revised:2009-05-20 Online:2010-03-20 Published:2010-03-20

摘要: 根据1987年、1994年、1998年和2005年的TM影像数据,分析了石羊河中下游近20 a来的荒漠化土地景观生态变化;并结合实地调查,分析了荒漠化过程中植物种的变化;提出了调控机制措施。结果表明,荒漠化土地面积呈减少趋势,重度荒漠化所占比重有所下降,新开垦荒地增加;坝区植物种消失严重,泉山区植物种增多减少;针对石羊河流域用水紧缺的矛盾提出了综合的调控、节水措施。

关键词: 石羊河, 荒漠景观, 变化, 调控

Abstract: Based on TM images of middle and lower reaches of Shiyang River in 1987, 1994, 1998 and 2005, this paper analyzed the changes of desertification landscape. The results showed that the area of desertification tended to decrease, the ratio of serious desertification land decreased, and new abandoned cultivated land increased; plant species vanished seriously in Baqu area, and the increase was more than decrease in Quanshan area. Lastly, this paper proposed some comprehensive measures for regulating and saving water against contradictions in water use in Shiyang river basin.

Key words: Shiyang River, desert landscape, change, regulation

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