关键词: 茶叶生产, 空间演变, 东茶西移, 重心转移

Abstract:

Understanding of the regional changes of production layout of tea can help the decision-making for a better strategy of tea production in China. In this paper, we analyze the spatial-temporal distribution of tea plantation acreage, tea yield, well-known tea yield, tea production value and the well-known tea value using the GIS technology and gravity center theory. Moreover, we discuss the driving forces of the dynamic evolution of their centers of gravity. The results indicate that there are evident regional differences in China's tea production. Four regional tea production centers (Southwest China tea area: Yunnan, Guizhou and Sichuan; Jiangnan tea area: Hubei and Zhejiang; Southern China tea area: Fujian; Jiangbei tea area: Henan) have been formed. Fujian, Yunnan and Zhejiang provinces are major regions of tea industry in China. The change of tea production center of gravity in China shows a trend of westward movement on the whole. Although there are some differences in the paths of different indicator centers of gravity, westward movement of the center of tea production is a foregone conclusion. The tea garden area gravity centers move toward the northwest. The output of normal tea and well-known tea gravity centers move toward the southwest. The tea production value and well-known tea production value gravity centers move toward the northwest as a whole. In terms of the moving range and moving speed, the tea production value and famous tea production value gravity centers are lagging behind the output of normal tea and the well-known tea gravity centers shift. On the transfer path of the center of gravity, the size of the center of gravity of some properties, such as tea production, can directly reflect the size of the growth of the attribute in the moving region. There are several factors that affect the spatial-temporal change of tea production center of gravity. First, the government attaches great importance to the development of the tea industry and strongly support the expansion of the tea plantation acreage in China. Second, the optimization of product structure, the increase of proportion of the clonal tea plantation acreage, standardized production and popularity of mechanization are the important reasons for the growth of production of normal tea and the well-known tea. Third, the added value of normal tea and the well-known tea are mainly resulted from the expansion of the scale of tea industry and the brand management.

Key words: tea production, spatial evolution, westward movement, shifting of gravity center