Abstract: The contribution factors of increasingly pesticide consumption can be divided into cropping area, pesticide application dosage and cropping structure adjustment. The contribution rates of the three factors to the total growth of pesticide consumption in both national and regional levels have been measured and calculated, respectively. The relationship between pesticide consumption and cropping structure adjustment from 2006 to 2016 have been analyzed. In respect of the cropping structure in China in recent years, there have been an increasing on the proportion of crops with high pesticide application dosage and a decreasing on the proportion of crops with medium and low pesticide application dosage, and vegetables topped the proportion growth of high-dosage crops with 1.38% increase rate. The southwestern region of China achieved the most considerable adjustments in agricultural cropping structure with an 8.54% growth of proportion of high-dosage crops. From the decomposition results of driving factors of pesticide consumption growth, the average contribution rate of cropping structure adjustment reached 50.10%, and stood out as the most crucial factor propelling the pesticide consumption growth in some years. Besides, the southwestern, central and southeastern regions of China all underwent high-level substitution of crops with medium and low pesticide application dosage by high-dosage ones, and cropping structure adjustment played an essential role in elevating pesticide consumption in the three regions. Hence, the cropping structure adjustment is of strategic importance in the control and reduction of pesticide consumption:employ reasonable economic means to guide the agricultural cropping structure's transformation into "pesticide-saving" type; strengthen regionalization of pesticide consumption control, and focus on the adjustment of agriculture cropping structure in high-intensity pesticide consumption areas; intensify efforts of policy supports in pesticide reduction and substitution technologies and improve the technology adoption rate of farmers households; enhance the construction of pesticide consumption control system to ensure the green development of agriculture.

Key words: pesticide application dosage, cropping structure, structure adjustment, influential factor