Land use land cover change detection and ecological quality evaluation of Xiong’an New Area from 2013 to 2021 using Landsat images

In order to better explore the land use and land cover change (LUCC)in Xiong’an New Area and evaluate the ecological quality impacted by construction, 9 Landsat 8 images from 2013 to 2021 in this area were classified with the object-oriented supervision classification method. Based on all results, the following main conclusions were drawn: (1) The overall accuracy of the new classification results was greater than 86.8% and the kappa coefficients ranged from 0.81 to 0.88, which were superior to that from the FROM-GLC and GLC_FCS global land cover product. (2) Since 2017 when Xiong’an New Area was established, the area of cropland has decreased and the area of impervious area and forest have increased, while the area proportion of the blue-green space has increased from 12% to 30%. Besides, the different LUCC patterns were also observed in three counties within Xiong’an New Area, which met the planning requirements very well. (3) Although the expansion of impervious area and urban construction have the inevitable negative impacts on ecological quality, the positive impacts owing to the increase of forest coverage and the blue-green space have increased gradually and would take the lead in the near future. In conclusion, the LUCC in Xiong’an New Area complies with the construction policy and reflects the achievements of economic and social development in this area.