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Forest and Grassland Resources Research ›› 2024›› Issue (2): 43-50.doi: 10.13466/j.cnki.lczyyj.2024.02.006

• Scientific Research • Previous Articles     Next Articles

Spatial Distribution Patterns and Landscape Characteristics of Caragana korshinskii Groves in the Kubuqi Desert

AN Da1,2(), WANG Haibing1,2,3(), BAI Yunfei1,2, LI Siqi1,2, ZHANG Xue1,2, XU Guangfu4   

  1. 1. College of Desert Control Science and Engineering,Inner Mongolia Agricultural University,Hohhot 010018,China
    2. Key Laboratory of Aeolian Physics and Desertification Control Engineering from Inner Mongolia Autonomous Region Hohhot 010018,China
    3. Inner Mongolia Hangjin Desert Ecological Position Research Station,Ordos 017400,Inner Mongolia,China
    4. Experimental Center of Desert Forestry,Chinese Academy of Forestry,Bayannur 015200,Inner Mongolia,China
  • Received:2024-02-06 Revised:2024-04-08 Online:2024-04-28 Published:2024-09-02

Abstract:

Revealing the distribution and landscape characteristics of shrub resources in the Kubuqi Desert is of great significance to optimize the distribution structure of shrub resources in the region,increase the effectiveness of their protection and utilization,and solidify the effectiveness of sand control and prevention.Based on GF-2 remote sensing images,DEM,temperature,precipitation and other data,geospatial analysis techniques were used to analyze the distribution status and landscape characteristics of Caragana groves in the Kubuqi Desert.The results show that:1)the number of Caragana grove patches in the Kubuqi Desert is about 22 000,with a total area of about 21 000 hm2,accounting for 1.49% of the area of the Kubuqi Desert.Hangjin Banner has the most Caragana grove patches and Dongsheng District has the least;mobile sandy land has the most patches and saline land has the least.The patches are mostly distributed in the area of elevation 984-1 093 m,and the number of Caragana grove patches decreases with the increase of elevation;with the increase of temperature and precipitation,the number of patches increases,and the area with annual precipitation 309-356 mm is the most.2)The landscape pattern of different regions of the Kubuqi Desert is related to the terrain and geomorphology,temperature and precipitation,Caragana grove plantation type,and the desertification control effect.The northern region has low elevation,saline and alkaline land,belongs to the edge of Kubuqi Desert expansion,and is dominated by continuous sand prevention and sand blocking Caragana groves,the southern region has high elevation and low temperature,the main focus is on wind and sand control forests and soil and water conservation forests.,the western region has low elevation,flowing sandy land,arid climate,and belongs to desert grassland belt,and is dominated by natural dispersed Caragana groves,and the eastern region has good hydrothermal conditions,which is more distributed in areas of returning cultivated land to forests and on both sides of the roads.The Kubuqi Desert should strengthen the protection and restoration of Caragana groves in the western part of the desert,update the planting pattern of aged and degraded Caragana groves in the northern part of the desert in order to enhance its stability,and continue to increase the planting area of Caragana groves in the eastern part of the desert,where there are significant hydrothermal advantages,so as to supply sufficient forestry and grassland resources for Caragana grove industry development.

Key words: Kubuqi Desert, Caragana korshinskii, remote sensing, landscape, space distribution

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