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- W2384233723 abstract "【Objective】 Study on the spatial distribution pattern and sampling techniques of the sloe bug,Dolycoris baccarum(L.) was conducted to provide a basis for accurate sampling and effective management.【Method】 Spatial distribution patterns and sampling techniques of the sloe bug D.baccarum adults in tobacco fields were studied by using frequency comparison,gather index inspection,Taylor's power law and Iwao's regression method.【Result】 The spatial distribution pattern of D.baccarum was very significantly unsuitable to poisson distribution in the second field and core distribution in the fifth field.Both the third and the fifth fields were significantly unfitted to negative binomial distribution.Gather indexes inspection and Taylor's power law indicated that adults were aggregated distribution,and the population aggregation was mainly caused by environmental heterogeneity.Iwao's regression method indicated that adults D.baccarum attracted mutually among individuals and the individual groups were the basic components.However,the individual groups were with uniform distribution.The optimal and sequential sampling numbers were determined by Iwao's m*-m regression equation.Relative errors of 5 sampling methods including five points,chessboard,parallel lines,single diagonal,and double diagonal,were compared with each other through simulating samples indoor.The least error was found in the parallel lines method of 50 samples.【Conclusion】 Adults of D.baccarum were in aggregated distribution and the parallel lines method of 50 samples was the optimal sampling patterns." @default.
- W2384233723 created "2016-06-24" @default.
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- W2384233723 date "2012-01-01" @default.
- W2384233723 modified "2023-09-23" @default.
- W2384233723 title "Spatial distribution pattern and sampling techniques of the sloe bug,Dolycoris baccarum(L.)" @default.
- W2384233723 hasPublicationYear "2012" @default.
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