Improving performance of eco-industrial parks

Figures & data

Figure 1. Left – A food web of a hypothetical ecosystem with species numbered. Right – A food web matrix; f_ij = 1 represents a unidirectional link between prey (i) and predator (j) and a zero represents no link.

Figure 2. Combination of four individual EIPs into Single Combined EIP (Combo 1 – Table 1).

Table 1. Combo 1 EIP made up of Kymi EIP, Lubei Industrial Park, Mongstad EIP and Wallingford EIP.

EIP Combo 1	AA component?	N	L	npredator	nprey	C = L/N^2	LD	PR	PS	V	G	λmax
Kymi EIP	N	8	14	7	7	0.22	1.75	1	0.714	2	2.13	1.82
Lubei Industrial Park	Y	9	17	7	8	0.21	1.89	1.14	0.429	2.13	2.22	0
Mongstad EIP	Y	11	20	10	8	0.17	1.82	0.8	0.3	2.5	1.57	1.55
Wallingford EIP	N	12	18	11	9	0.125	1.5	0.82	0.545	2	2.8	1
Combo 1 pre links added		40	72	35	32	0.045	1.8	0.914	0.486	2.25	2.06	1.82
Combo 1 post links added		40	169	36	33	0.106	4.23	0.917	0.111	5.12	4.69	4.48
% change		0	135	3	3	135	135	0	−77	128	128	146

Table 2. Combo 2 EIP is made up of GERIPA, Gladstone and Montfort IBS.

EIP Combo 2	AA Component?	N	L	npredator	nprey	C = L/N^2	LD	PR	PS	V	G	λmax
GERIPA IBS	Y	8	15	6	8	0.23	1.88	1.33	0.167	1.88	1.8	1.93
Gladstone (2008)	Y	23	25	13	14	0.05	1.09	1.08	0.692	1.79	1.17	0
Monfort Boys Town	Y	9	11	7	7	0.14	1.22	1	0.571	1.57	2.43	1
Combo 2 pre links added		40	49	28	26	0.031	1.23	0.929	0.607	1.88	1.75	1.93
Combo 2 post links added		40	124	32	29	0.078	3.1	0.906	0.344	4.28	3.88	4.01
% change		0	153	14	12	153	153	−2	−43	127	121	108

Table 3. The Combo 3 EIP is made up of the Brownsville EIP, Burnside EIP, Clark Special Economic Zone and Kawasaki.

EIP Combo 3	AA Component?	N	L	npredator	nprey	C = L/N^2	LD	PR	PS	V	G	λmax
Brownsville EIP	N	16	22	10	12	0.086	1.38	1.20	0.400	1.83	1.14	1.41
Burnside EIP	N	11	20	10	9	0.165	1.82	0.90	0.300	2.22	2.20	2.05
Clark Special Zone	Y	20	51	19	17	0.128	2.55	0.90	0.263	3.00	2.00	3.34
Kawasaki EIP	N	8	16	8	8	0.250	2.00	1.00	0.500	2.00	1.62	1.88
Combo 3 pre links added		55	109	47	46	0.036	1.98	0.979	0.340	2.37	2.32	3.34
Combo 3 post links added		55	235	47	46	0.078	4.27	0.979	0.149	5.11	5.00	3.94
% change		0	116	0	0	116	116	0	−56	116	116	18

Table 4. The Combo 4 EIP is made up of the Kymi EIP and Wallingford EIP.

EIP Combo 4	AA Component?	N	L	npredator	nprey	C = L/N^2	LD	PR	PS	V	G	λmax
Kymi EIP	N	8	14	7	7	0.22	1.75	1.00	0.714	2.00	2.13	1.82
Wallingford EIP	N	12	18	11	9	0.125	1.50	0.820	0.545	2.00	2.80	1
Combo 4 pre links added		20	34	18	16	0.085	1.70	0.889	0.611	2.13	1.89	1.82
Combo 4 post links added		20	53	18	16	0.133	2.65	0.889	0.333	3.31	2.94	2.81
% change		0	135	3	3	135	56	0	−45	56	56	55

Table 5. The Combo 5 EIP is made up of the Brownsville, Burnside and Kawasaki EIP.

EIP Combo 5	AA Component?	N	L	npredator	nprey	C = L/N^2	LD	PR	PS	V	G	λmax
Brownsville EIP	N	16	22	10	12	0.086	1.38	1.20	0.400	1.83	1.14	1.41
Burnside EIP	N	11	20	10	9	0.165	1.82	0.90	0.300	2.22	2.20	2.05
Kawasaki EIP	N	8	16	8	8	0.250	2.00	1.00	0.500	2.00	1.62	1.88
Combo 5 pre links added		35	58	28	29	0.047	1.66	1.04	0.393	2.00	2.07	2.05
Combo 5 post links added		35	93	28	29	0.076	2.66	1.04	0.321	3.21	3.32	2.34
% change		0	116	0	0	62	60	0	−18	60	60	14

Table 6. Combination EIPs compared against averages for food webs data-set.

	λmax	LD	PR	PS	V	G	N	L	npredator	nprey	C = L/N^2
Food web averages (Layton, Bras, and Weissburg 2016b)	6.03	7.69	1.13	0.100	8.82	9.69	57	523	47	51	0.155
Combo 1	4.48	4.23	0.917	0.111	5.12	4.69	40	169	36	33	0.106
Combo 2	4.01	3.10	0.906	0.344	4.28	3.88	40	124	32	29	0.078
Combo 3	3.94	4.27	0.979	0.149	5.11	5.00	55	235	47	46	0.078
Combo 4	2.81	2.65	0.889	0.333	3.31	2.94	20	53	18	16	0.133
Combo 5	2.34	2.66	1.04	0.321	3.21	3.32	35	93	28	29	0.076

Layton, Astrid, Bert Bras, and Marc Weissburg. 2016b. “Industrial Ecosystems and Food Webs: An Expansion and Update of Existing Data for Eco-industrial Parks and Understanding the Ecological Food Webs They Wish to Mimic.” Journal of Industrial Ecology 20 (1): 85–98. doi:10.1111/jiec.12283.

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