Journal of Geographical Sciences ›› 2015, Vol. 25 ›› Issue (4): 428-436.doi: 10.1007/s11442-015-1178-7

• Orginal Article • Previous Articles     Next Articles

Sand stabilization effect of feldspathic sandstone during the fallow period in Mu Us Sandy Land

Jichang HAN1,2, Yansui LIU2,3,*(), Yang ZHANG1,2   

  1. 1. Shaanxi Provincial Land Engineering Construction Group Co. Ltd., Xi’an 710075, China
    2. Key Laboratory of Degraded and Unused Land Consolidation Engineering, the Ministry of Land and Resources of China, Xi’an 710075, China
    3. Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China
  • Received:2014-03-20 Accepted:2014-08-20 Online:2015-04-15 Published:2015-06-24
  • Contact: Yansui LIU E-mail:liuys@igsnrr.ac.cn
  • About author:

    Author: Han Jichang (1966-), Professor, specialized in land engineering, land economy, and allocation of land and water resources.

  • Supported by:
    The public welfare scientific research of Ministry of Land and Resources, No.201411008

Abstract:

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.

Key words: feldspathic sandstone, sand stabilization, Mu Us Sandy Land, desertification, land consolidation