| 1,866lacewings were captured at Akesu, Chrysopa Sinica, Chrysopa Formosa and Chrysopaseptempunctata were the dominant species, Accounted for64%of the total,64%and26%respectively.The population of Chrysopa Sinica were largest in the complex agricultural landscape A and larger in thecomplex agricultural landscape B and least in the simple landscape. The population of Chrysopa Formosawas larger in the complex agricultural landscape A than the others. The population of Chrysopaseptempunctata is lager in the simple landscape than the complexs.2, There had a negative relationship between the population of lacewing and the proportion of apple,bench land(p<0.05). There had a negative relationship between the population of the clover cutworm andthe proportion of corn (p<0.05), a positive relationship between the population of the clover cutworm andthe proportion of the vegetable field (p<0.05).3, The clover cutworm population and the landscape diversity index (H’) in the different radius weresignificantly positive correlation in the radius of2km.The clover cutworm adults population and the cropdominance index (d) were highly significantly positive correlation on the different investigated radius.4, The population of the clover cutworm is larger in the simple agricultural landscape than thecomplex agricultural landscape. Population in the complex agricultural was a little more than the simpleagricultural landscape in north Xinjiang, and lager in complex landscape than the simple landscape. It’slager in the south of Xinjiang than the north. From the big to small of the proportion of cotton, thepopulation of the clover cutworm reduced.5, The population of lacewing in the complex agricultural landscape was larger than the simpleagricultural landscape in the south of Xinjiang, and the population is larger when the proportion of cottonwas lager. The trend of the lacewing occurring was the same. The population in south of Xinjiang is largerthan the north. |
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