The role and significance of the Gobi Desert pavement in controlling sand movement on the cliff top near the Dunhuang Magao Grottoes
The role and significance of the Gobi Desert pavement in controlling sand movement on the cliff top near the Dunhuang Magao Grottoes
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DOI：
10.1006/jare.2000.0748
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发表时间：
2001-07
影响因子：
2.7
通讯作者：
Q. Jianjun;Huang Ning;D. Guangrong;Z. Weimin
中科院分区：
文献类型：
--
作者：
Q. Jianjun;Huang Ning;D. Guangrong;Z. Weimin
通过实地调查和监测，分析了风沙对敦煌马高窟的破坏。结果表明，马高石窟崖顶戈壁砾石带虽然具有输沙作用，但同时也是防止明沙山大沙丘及其前缘沙丘向石窟推进甚至掩埋石窟的屏障。建议对莫高窟的保护应侧重于防止风沙在砾石带上流动，而不是控制沙丘的迁移。为此，应在明沙山前缘采取有效的阻沙系统和稳定措施，而在戈壁砾石带本身不应修建阻沙工程，以免积沙。
Field investigation and monitoring allowed the analysis of damage by wind-blown sand to the Dunhuang Magao Grottoes. The results show that although the Gobi gravel belt on the cliff top to the Magao Grottoes allows sand transport, it is also a protective screen which prevents the Megadunes on the Mingsha Mountain and its frontal edge dunes from advancing towards the grottoes or even burying them. It is suggested that efforts to protect the Mogao Grottoes should be focused on preventing the wind-blown sand flowing over the gravel belt, rather than on checking the migration of the dunes. To attain this, an effective system for blocking sand movement and stabilization measures should be adopted at the front edge of the Mingsha Mountain but no sand retarding works should be set up in the Gobi gravel belt itself, lest they accumulate sand.