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《Journal of Arid Land Resources and Environment》 2017-09
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Relationships between the growth condition of the elm and the rhizosphere microorganism in Hunshandak sand

MA Yuan;LI Gangtie;LIANG Tianyu;MA Yunxia;ZHAO Guofen;YAO Qingzhi;PAN Yiyong;WANG Shaoxiong;College of Desertification Control Sciences,Inner Mongolia Agricultural University;College of Life Sciences,Inner Mongolia Agricultural University;  
We collected elm rhizosphere soil samples on different sites from Hun Shan Da Ke sand,and cultivated and separated soil microorganism in the laboratory to explore relationship between growth status of elm woodlands and soil microorganisms. The results were: in general,there were significant differences in the number of bacteria,actinomycetes and fungi,with an average of bacteria 46. 84( 10~6·g~(-1)),actinomycetes 34. 69( 10~6·g~(-1))and fungi 5. 49( 10~6·g~(-1)). The number of bacteria,actinomycetes and fungi on lowland of dune and shady slope where elm grew better were significantly more than them on sunny slope where elm grew worse. The number of bacteria on lowland of dune,shady slope and sunny slope were 59. 46( 10~6·g~(-1)),42. 82( 10~6·g~(-1)) and 38. 25( 10~6·g~(-1)),respectively. In middle of the sandland,all growth indexes of elm were higher and number of soil microorganism were significantly more than that in western and eastern sand land. The growth of elm was positively correlated with the number of microorganisms.
【Fund】: 国家自然基金项目(31260202);; 林业公益性行业科研专项(201504412)资助
【CateGory Index】: S714.3;S792.19
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