Distribution and Damage of Alternanthera philoxeroides in Agro-environment of Jiangsu Province
The statistical analysis of Alternanthera philoxeroides infestation in six agriculture ecological regions of Jiangsu Province was assessed and ecologically interpreted.According to the investigation,distribution and damage of Alternanthera philoxeroides was closely related to latitude and water.Latitude determined the overall level of Alternanthera philoxeroides infestation in different agriculture ecological regions.Significant difference in water of all sorts of environments led to tremendous difference in coverage and frequency.Based on the results of statistical analysis,Alternanthera philoxeroides infestation became gradually decreasing with the rise of latitude,and the most damage in Taihu region and the least damage in Huaibei region;Alternanthera philoxeroides infestation was quite serious in water environment,especially in canals and ponds,but slight in dry environment and paddy field.