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Chinese Agricultural Science Bulletin ›› 2015, Vol. 31 ›› Issue (22): 51-56.doi: 10.11924/j.issn.1000-6850.casb15010248

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Study on Relationship Between the Distributions of Calligonum mongolicum Communities and
Soil Physical and Chemical Properties in the Edge of Minqin Oasis

Wan Xiang1,2, Wang Li1, Xu Xianying2, Zhao Peng2,3, Zhang Jinhu2, Tang Weidong2, Chai Chengwu2   

  1. (1Forestry College of Gansu Agricultural University, Lanzhou 730070; 2State Key Laboratory Breeding Base of Desertification and Aeolian Sand Disaster Combating, Gansu Desert Control Research Institute, Lanzhou 730070; 3Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou 730000)
  • Received:2015-01-31 Revised:2015-07-11 Accepted:2015-04-10 Online:2015-08-20 Published:2015-08-20

Abstract: In the background of global climate and land use change, understanding of the relationship between vegetation and soil environment timely is useful to predict the succession change of vegetation communities. Based on field survey and laboratory analysis, the relationship between C. mongolicum communities’ spatial distribution and soil physical and chemical properties in the edge of Minqin Oasis was studied with the methods of traditional statistical and redundancy analysis (RDA). The results showed that there were only 14 plant species which belonged to 7 families and 14 genera in the study area. The species composition and structure of C. mongolicum communities were poor and simple. Water and nutrient condition of C. mongolicum communities was poor, mainly was coarsening and weakly alkaline sandy soil. The RDA results showed that pH and EC had significant influence on the distribution of C. mongolicum communities. As an important sand-fixation afforestation variety, the author suggested that soil salinity should be given more consideration when choosing planting site.