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FOREST RESOURCES WANAGEMENT ›› 2012›› Issue (4): 91-95.

• Science and Technology • Previous Articles     Next Articles

Using “3S” Technology to Monitor Rodent Damage in Cakcayr (Haloxylon ammodendron)Natural Forest Distributed on Alxa Desert in Inner Mongolia

CHA Muha1,2, MA Guoqing3, A li gu en1,2, WU Xiaodong1,2, FU Heping1,2, ZHANG Xiao Dong1,2, YUAN Shuai1,2, ZHANG Fushun4   

  1. 1. College of Ecology and Environmental Science,Inner Mongolia Agricultural University,Hohhot　010019,Inner Mongolia Autonomous Region,China;
    2. Key Laboratory of Grassland Resources,Ministry of Education,Hohhot,010019,Inner Mongolia Autonomous Region,China;
    3. Academy of Forest Inventory and Planning,State Forestry Administration,Beijing 100714,China;
    4. Grassland Research Institute,Chinese Academy of Agricultural Sciences,Hohhot 010010,China
  • Received:2012-03-12 Revised:2012-05-11 Online:2012-08-28 Published:2020-11-27

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Abstract: The damage of Great gerbil(Rhombomys opimus)to Cakcayr (Haloxylon ammodendron)natural forest distributed on Alxa desert in Inner Mongolia of China was surveyed using the method of plugging hole and checking opening hole in autumn and spring from 2009 to 2010.Multiple regression method was used to analyze the relationship between Great gerbils abundance and environmental factors.Meanwhile,damage levels of Great gerbils were overlaid with Cakcayr forest distribution map (1∶2200000)to divide 4 grades based on damage conditions by 3S technology.The results indicated that Great gerbils abundance was positively correlated with Cakcayr biomass,soil moisture and monthly precipitation,negatively correlated with Cakcayr density.The correlation of Great gerbils abundance with monthly precipitation was the most significant one among all of factors.During two years,Great gerbils damaged areas were mainly distributed in the north and east of Alxa desert,and damage in autumn was more serious than spring.The "3S" technology not only reflects cakcayr forest distribution and Great gerbils damage levels accurately,but also provides an effective tool for monitoring and comprehensively managing pest rodents in Cakcayr forest.

Key words: Great gerbil, Cakcayr forest, rodent damage grade

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