Table 4. Land-use structure for the study area in 2015 and 2019.

Land-use	2015		2019
	Area / km2	Percentage / %	Area / km2	Percentage / %
Forest land	294.07	35.52%	304.18	36.74%
Grassland	52.95	6.39%	80.4	9.71%
Construction land	109.94	13.28%	133.69	16.15%
Cultivated land	357.39	43.17%	295.07	35.64%
Mining land	7.10	0.86%	6.76	0.82%
Water area	6.42	0.78%	7.77	0.94%
Total	827.87	100.00%	827.87	100.00%