Fig. 5

Sketch map of overall changes in the centre of gravity position in cultivated land where land use has changed. (a: location of cultivated land during the 2010 − 215 Period; b: schematic diagram of converting cultivated land into building land; c: schematic diagram of converting cultivated land into forest land; d: schematic diagram of converting grass land into grass land; e: schematic diagram of converting cultivated land into water area; h: schematic diagram of converting cultivated land into unused land; g: the overall centre of gravity position after converting cultivated land into other land use types during the period of 2015 to 2020).