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2009—2010年,在内蒙古阿拉善左旗典型天然梭梭(Haloxylon ammodendron)林区,采用查盗开洞法调查春季和秋季的大沙鼠(Rhombomys opimus)危害情况,根据危害情况划分危害等级,同时分析了梭梭林中大沙鼠的密度与环境因子的关系,采用多元回归方法建立数学模型,并运用3S技术将大沙鼠危害等级与梭梭林分布图(1∶220万)进行叠加分析处理。结果表明,阿拉善荒漠天然梭梭林大沙鼠分布的数量与梭梭生物量、土壤水分、月降水总量呈正相关,与梭梭密度呈负相关,与降水量的相关性最大;2个年度中大沙鼠危害等级为1～4级,危害区域主要集中在阿拉善左旗东部和北部,秋季大沙鼠的危害普遍严重。该研究可以为梭梭林的鼠害监测及综合治理提供参考。
In 2009-2010, the damage of Rhombomys opimus in spring and autumn was investigated in the typical natural Haloxylon ammodendron forest area of Alxa Left Banner in Inner Mongolia. According to the hazard classification, At the same time, we analyzed the relationship between the density and the environmental factors of the gerbil in Haloxylon ammodendron, established the mathematical model by multivariate regression, and used the 3S technology to superimpose the hazard level of Haloxylon ammodendron and Haloxylon ammodendron (1: 2.2 million) Analysis and processing. The results showed that there was a positive correlation between the distribution of A. dauricus and the biomass of Haloxylon ammodendron forest, the total monthly precipitation and the density of Haloxylon ammodendron forest in Alashan Desert. Annual Nemesis gerbils grade 1 to 4, Hazardous areas are mainly concentrated in the eastern and northern Alxa Left Banner, the harm of gerbils in autumn is generally serious. This study can provide references for the monitoring of rodent pests and comprehensive management of rodents.