毛乌素沙地休耕期砒砂岩的固沙效应研究(英文) |
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引用本文: | 韩霁昌,刘彦随,张阳.毛乌素沙地休耕期砒砂岩的固沙效应研究(英文)[J].地理学报(英文版),2015(4):428-436. |
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作者姓名: | 韩霁昌 刘彦随 张阳 |
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作者单位: | Shaanxi Provincial Land Engineering Construction Group Co. Ltd.;Key Laboratory of Degraded and Unused Land Consolidation Engineering, the Ministry of Land and Resources of China;Institute of Geographic Sciences and Natural Resources Research, CAS |
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基金项目: | The public welfare scientific research of Ministry of Land and Resources,No.201411008 |
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摘 要: | Depended on the analysis of ground snow situation, soil moisture loss speed and soil structure after planting crops of Mu Us Sandy Land remedied with feldspathic sandstone in the fallow period, it is concluded that feldspathic sandstone mixed with sand improved the sand stabilization in the governance of Mu Us Sandy Land in the fallow period. The sandy land remedied with feldspathic sandstone had big snow coverage, 25%–75% higher than normal sand; soil moisture losses slowed down, and moisture content rose by over 3 times; soil structure had been improved, and water stable aggregate content increased by 6.52%–18.04%; survival rate of protection forest increased to 85%; and ground flatness is less than 1%. The above conditions weakened sand rising conditions of Mu Us Sandy Land in the fallow period and formed two protective layers of snow cover and soil frozen layer under cold weather so as to prevent against wind erosion.
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关 键 词: | feldspathic sandstone sand stabilization Mu Us Sandy Land desertification land consolidation |
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