The Evaluation of Groundwater Resources Value of Beijing Based on Emergy Theory

Table 2

Transformity of the engineering water of Beijing, 2008–2012.

Item	2008	2009	2010	2011	2012
Raw surface water (10^11 sej/m^3)	4.27	7.77	7.37	5.6	5.09
Raw groundwater (10^11 sej/m^3)	24	28.39	29.04	28.93	29.04
The raw south-to-north diversion project water; (Raw SNDP water) (10^11 sej/m^3)	1.99	1.99	1.99	1.99	1.99
Water diversion costs (¥/m^3)	0.39	0.39	0.39	0.39	0.39
Reservoir construction costs (¥/m^3)	1.53	1.53	1.53	1.53	1.53
Tube and wells pumping station construction costs (¥/m^3)	0.32	0.32	0.32	0.32	0.32
The south-to-north diversion project water investment (¥/m^3)	3.35	3.35	3.35	3.35	3.35
EM$ (10^11 sej/¥)	6.76	6.49	7.26	8.11	9.51
Engineering surface water (10^11 sej/m^3)	17.21	20.2	21.28	21.14	23.3
Engineering surface water (10^11 sej/m^3)	28.77	32.97	34.17	34.66	35
Engineering SNDP water (10^11 sej/m^3)	24.61	23.71	26.3	29.15	33.8

Original source: Beijing Water Statistical Yearbook [26–29].