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Citation:

Research on Spatial Pattern of Monochamus alternatus's Occurrence Rate Based on Meteorological Factors

  • Received Date: 2014-08-21
  • According to the data of China's Monochamus alternatus Hope occurrence in the period of 2002 to 2012, and taking the average occurrence rate of prefectures affected by the insect pest as a predictor, the meteorological data in those prefectures were calculated using a climate simulation software called ClimateChina v 4.40. By means of partial least squares regression, the regression equation about the average occurrence rate and meteorological factor, i.e. the spatial pattern model of average occurrence rate, was obtained to predict the future trend of potential changes on M. alternatus in China combined with the geospatial data and attribute data. The results showed that the spatial pattern model of M. alternatus' average occurrence rate built by 12 selected meteorological factors had high reliability. The prediction accuracy of the spatial pattern model was 83.14%. Based on the model, the spatial pattern of M. alternatus' average occurrence rate was predicted. The prediction results of the occurrence rate in 2020s, 2050s, and 2080s, showed that compared with the data of 2002-2012, the area with moderate or severe insect pest would be larger in eastern Sichuan, central Guizhou, eastern Hunan, western Jiangxi and western Zhejiang. The severe occurrence area in southeast Shaanxi would be less, while the mild occurrence area would decrease obviously in eastern Shandong and central Anhui.
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Research on Spatial Pattern of Monochamus alternatus's Occurrence Rate Based on Meteorological Factors

  • 1. Research Institute of Resource Insects, Chinese Academy of Forestry, Kunming 650224, Yunnan, China
  • 2. Southwest Forestry University, Kunming 650224, Yunnan, China

Abstract: According to the data of China's Monochamus alternatus Hope occurrence in the period of 2002 to 2012, and taking the average occurrence rate of prefectures affected by the insect pest as a predictor, the meteorological data in those prefectures were calculated using a climate simulation software called ClimateChina v 4.40. By means of partial least squares regression, the regression equation about the average occurrence rate and meteorological factor, i.e. the spatial pattern model of average occurrence rate, was obtained to predict the future trend of potential changes on M. alternatus in China combined with the geospatial data and attribute data. The results showed that the spatial pattern model of M. alternatus' average occurrence rate built by 12 selected meteorological factors had high reliability. The prediction accuracy of the spatial pattern model was 83.14%. Based on the model, the spatial pattern of M. alternatus' average occurrence rate was predicted. The prediction results of the occurrence rate in 2020s, 2050s, and 2080s, showed that compared with the data of 2002-2012, the area with moderate or severe insect pest would be larger in eastern Sichuan, central Guizhou, eastern Hunan, western Jiangxi and western Zhejiang. The severe occurrence area in southeast Shaanxi would be less, while the mild occurrence area would decrease obviously in eastern Shandong and central Anhui.

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