Abstract:

In order to analyze the contribution factors and spatial pattern of tea production increase in China, based on the tea planting area, yield, and unit yield data of Chinese provinces from 1991 to 2022, the logarithmic mean divisia index (LMDI) model was used to analyze from national, regional, and provincial levels. The results showed that: (1) in terms of growth quantity, the scale of tea production in China continued to expand from 1991 to 2022, and both tea garden area and tea production showed a sustained growth trend. Sichuan, Yunnan, and Guizhou, the top three regions in terms of tea planting area growth, contributed 47.73% of the total growth of tea planting area. Sichuan, Hubei, Fujian, and Yunnan, the top four regions in terms of tea production growth, contributed 59.53% of the total growth of tea production. The southwest tea region was the leading area for increasing tea production in China. (2) In terms of growth rate, the provinces with lower than the national average growth rate are Zhejiang, Anhui, Chongqing, Hunan, Jiangxi, and Guangdong; and the provinces with above the national average growth rate are Yunnan, Hubei, Guizhou, Shaanxi, Henan, and Shandong. The southwest tea region is considered as the "rapid production increase" level, while the Jiangbei tea region is at the "speeding production increase" level. (3) The contribution of tea planting area in southwest tea area is the most obvious, and the contribution of tea yield per unit area in south China tea area is the most significant. There are 16 provinces in China that contribute more to tea planting area, and only 3 provinces contribute more to tea yield per unit area. The provinces that make a significant contribution to the increase of tea planting area include Guizhou, Shandong, Gansu, Jiangsu and Xizang. The province that makes a significant contribution to the increase of unit yield is only Hainan. In order to improve the national tea production capacity and growth potential, we should strengthen the construction of tea production base, deepen the deep processing of tea, and enhance the efficiency of tea brand.

Key words: China's tea, southwest tea region, tea, increase production, spatial pattern, contribution factors, LMDI model