The Spatial Variation and Grain Size Character of Different Land Cover Types in the Ulanbuh Desert

Song Jie; Chun Xi

doi:10.7522/j.issn.1000-694X.2016.00154

Journal of Desert Research >

2018 , Vol. 38 >Issue 2: 243 - 251

DOI: https://doi.org/10.7522/j.issn.1000-694X.2016.00154

The Spatial Variation and Grain Size Character of Different Land Cover Types in the Ulanbuh Desert

Song Jie ,
Chun Xi

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1. School of Geography and Planning, Sun Yat-Sen University, Guangzhou 510275, China;
2. Key Laboratory of Mongolian Plateau Environment and Global Change/Repair Engineering Laboratory of Wetland Ecoenvironment System, Inner Mongolia Normal University, Hohhot 010000, China

Received date: 2016-10-21

Revised date: 2016-11-30

Online published: 2018-03-20

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Abstract

The paper is based on the systematic sampling of the Ulanbuh Desert, one of the source areas of dust storm in China, and the grain size characteristics and spatial variation of surface sediments between different land cover types in the desert are analyzed. It is concluded that most of the grain size of surface sediments in the desert are medium and fine sand, and the average particle size is 2.84 φ. According to different land cover types and different spatial distribution laws, the grain size distribution of the surface sediments in the desert was the result of the interaction of the sediment source, the terrain and the carrying capacity. The saline alkali land in the middle of the desert, the farming land in the northeast and the sandy land in the desert should be the sources of the sand dust. Therefore, according to the different land cover types in the Ulanbuh Desert, to set up suitable models of initial plant population structure is the main method to control desertification.

Key words： Ulanbuh Desert; grain size; land cover; spatial variation

Cite this article

Song Jie , Chun Xi . The Spatial Variation and Grain Size Character of Different Land Cover Types in the Ulanbuh Desert[J]. Journal of Desert Research, 2018 , 38(2) : 243 -251 . DOI: 10.7522/j.issn.1000-694X.2016.00154

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