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中国沙漠 ›› 1998, Vol. 18 ›› Issue (3): 226-232.

• 研究论文 • 上一篇    下一篇

西藏八邛公路沙害治理条件评价及方法

赵文智, 董光荣, 孙宏义   

  1. 中国科学院兰州沙漠研究所, 兰州 730000
  • 收稿日期:1996-01-09 修回日期:1996-09-27 出版日期:1998-09-20 发布日期:1998-09-20
  • 作者简介:赵文智,男,1966年生,理学硕士,助理研究员。从事沙地水分动态和植被恢复研究。

THE TREATMENTAL CONDITIONS AND MEASURES OF SAND CALAMITY ALONG BAYI TOWN QIONGDUO RIVER HIGHWAY IN TIBET

ZHAO Wen zhi, DONG Guang rong, SUN Hong yi   

  1. Institute of Desert Research, Chinese Academy of Sciences, Lanzhou 730000
  • Received:1996-01-09 Revised:1996-09-27 Online:1998-09-20 Published:1998-09-20

摘要: 雅鲁藏布江中游下段沿岸八一镇至邛多江段公路沙害严重,这里沙害治理成功与否的关键是生物措施和机械措施的衔接。相应的解决办法:一是尽量用其它材料代替麦草做草方格沙障,二是利用菌根造林加速固沙植物生长;同时还分析了沙害治理的方法,并指出了适宜的固沙植物。

关键词: 八邛公路, 沙害, 治理条件, 治理方法

Abstract: The Bayi Town Qiongduo River in Tibet situates by the lower middle reaches of Yarlung Zhangbo River. The majority of 438 km long highway is located on the wind sand area of southern Yarlung Zhangbo River bank. Sand calamity to highway has severely influenced the traffic for a long time. Therefore, controlling sand calamity seems necessary and urgent. The natural landscapes in the lower middle reaches area of Yarlung Zhangbo River are humid forest, semi humid forest and semi arid shrub regions from west to east. The conditions of abundant thermal, rich precipitation and good water heat constitution are favorabble for various plants growing. Over 34 species plants growing on the sandy land of this area can provide enough sand binding plants, which help to control highway's sand calamity with biological measures. But there are lots of aeolian and hydrogenic sand material deposited along the river valley bank, where wind sand activity occurs violently. Only the biological measure linked up with engineering measure then approached success. So, the central objects of sand control in this area are making use of integrated techniques including leading out, preventing and fixing measures; finally establishing sand preventing and controlling system, in which biological measure plays the predominant role. Moreover, the engineering of sand control is subject to being flooded. Straw in check board sand banner are fast decomposed resulted from good hydrothermal condition. To resolve this problem, other materials resisting decomposition should take place of straw and the technique of afforestation with fungus should be adopted to accelerate young plant growing.

Key words: Highway from Bayi Town to Qiongduo River, Sand calamity, Treatmental condition, Controlling measures

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