Construction and Application of Relationship Model between Development of Mining Industry and Carbon Emission of Energy Consumption

Table 10

Decoupling index and decoupling relationship of the ferrous metal sector from 2001 to 2020.

Year	%∆E3	%∆G3	%∆C3	eT3	eT3 state		eK3	eK3 state		e3	e3 state
					2001	0.05		0.17	0.05		0.30	+II	2	1.09	+IV	0	0.33	+II	2
2002	0.59	0.18	0.18	3.18	−III	−1	0.31	+II	2	0.99	+IV	0
2003	0.05	0.45	0.32	0.12	+II	2	6.05	−III	−1	0.72	+II	2
2004	0.11	0.15	0.12	0.77	+II	2	1.01	+IV	0	0.78	+II	2
2005	0.31	0.49	0.35	0.62	+II	2	1.13	+IV	0	0.70	+II	2
2006	0.12	0.44	0.17	0.28	+II	2	1.40	−III	−1	0.39	+II	2
2007	0.16	0.36	0.18	0.45	+II	2	1.12	+IV	0	0.50	+II	2
2008	0.59	0.34	0.34	1.76	−III	−1	0.57	+II	2	1.01	+IV	0
2009	−0.31	0.34	−0.25	−0.93	+I	3	0.81	−IV	0	−0.76	+I	3
2010	0.24	0.45	0.28	0.55	+II	2	1.14	+IV	0	0.62	+II	2
2011	0.20	0.17	0.23	1.14	+IV	0	1.14	+IV	0	1.30	−III	−1
2012	0.24	0.21	0.15	1.11	+IV	0	0.62	+II	2	0.69	+II	2
2013	0.03	0.16	0.10	0.20	+II	2	3.07	−III	−1	0.63	+II	2
2014	−0.04	0.04	−0.02	−0.94	+I	3	0.56	−II	−2	−0.53	+I	3
2015	−0.22	−0.03	−0.23	6.81	+III	1	1.04	−IV	0	7.11	+III	1
2016	−0.17	−0.12	−0.12	1.39	+III	1	0.71	−II	−2	0.99	−IV	0
2017	0.03	−0.42	0.01	−0.07	−I	−3	0.52	+II	2	−0.04	−I	−3
2018	0.02	−0.19	0.03	−0.13	−I	−3	1.21	−III	−1	−0.15	−I	−3
2019	0.02	−0.05	0.07	−0.45	−I	−3	3.28	−III	−1	−1.49	−I	−3
2020	−0.05	0.02	0.08	−2.20	+I	3	−1.60	−I	−3	3.51	+I	3