Abstract: Based on the LMDI decomposition method, with the data of tea output value, output and tea garden area in Anhui Province from 2010 to 2018, the spatial distribution pattern and contribution factors of tea benefit increase in Anhui Province were explored quantitatively. The results show that (1) the tea benefit of Anhui Province continued to increase. The increase of tea benefits and production in regions and counties had made outstanding contribution to the increase of total output value of tea in Anhui Province. (2) From the perspective of the county spatial pattern of tea benefit increment, Jianghuai tea area and Dabieshan tea area contributed 96.87% of the total increment of tea benefit. From the perspective of tea benefit increment, the growth rate of tea in the counties of Anhui Province was dominated by super-rapid growth. From the perspective of spatial differentiation of tea growth, the dominant position of tea production in Dabieshan tea area had been continuously strengthening. (3) During the research period, the increase of unit price of tea in Anhui Province accounted for 62.55% of the total increase in benefits. In terms of time sequence, the contribution of the increase of unit price to the increment of tea benefit first decreased and then increased. (4) Among the 47 yield increasing areas, the number of counties contributing to tea benefit by increasing unit price was more than that by expanding area and increasing unit yield. The top 15 counties contributed 83.72% to the increase of tea benefit in Anhui Province, all of which showed an increase in unit price.

Key words: tea, benefit, promote, contribution, Anhui Province