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生态学杂志 ›› 2002, Vol. ›› Issue (4): 26-30.

• 研究报告 • 上一篇    下一篇

塔里木沙漠公路灌木固沙带的防护效应

何兴东, 赵爱国, 段争虎, 董治宝, 李志刚, 陈珩   

  1. 中国科学院寒区旱区环境与工程研究所, 兰州, 730000
  • 收稿日期:2001-04-02 修回日期:2001-05-28 出版日期:2002-08-10
  • 基金资助:
    国家自然科学基金项目(39070600);中国科学院寒区旱区环境与工程研究所创新项目(CACX210068);中国石油天然气总公司"九五"攻关项目(2098100660)资助.

Protective Effects of the Shrub-Belt along Tarim Desert Highway

He Xingdong, Zhao Aiguo, Duan Zhenghu, Dong Zhibao, Li Zhigang, Chen Heng   

  1. Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Scieneces, Lanzhou 730000
  • Received:2001-04-02 Revised:2001-05-28 Online:2002-08-10

关键词: 转基因玉米, 土壤线虫, 营养类群, 生态指标

Abstract: Due to interference of vegetation by experiment in wind tunnel and observation in field,the boundary layer is divided into 2 sublayers approximately at the vegetation height.As for the vertical wind gradient,it changes disorderly in rough sublayer of the lower and changes regularly in inertial sublayer of the upper varying with vegetation characteristics.Erosion rate increases exponentially with vegetation coverage reduction.The establishment of shrub shelterbelt along Tarim Desert Highway made obvious effects not only on wind preventing and sand binding,but also on microclimate.Compared with mobile dune,air temperature is higher in summer and lower in autumn,while relative moisture is higher,and evaporation and soil temperature lower in the shrub shelterbelt.

Key words: transgenic corn, soil nematode, trophic group, ecological index.

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