Analysis of the Key Factors of Ecological Environment Protection in the National Economic Sustainable Development Goals

Table 1

Weights of regional economic and environmental system indicators.

Economic system	Weight	Environmental system	Weight
Total output value	0.165	Afforestation area	0.169
Total export-import volume	0.139	Land area covered with trees	0.152
Energy consumption per unit of GDP	0.153	Waste water discharge	0.155
Productivity of labour	0.158	Salvage value	0.148