Land-use dynamics and landscape pattern change in a coastal gulf region, southeast China

Figures & data

Figure 1. Location of study region.

Table 1. Land-use structure change from 1988 to 2007 in Louyuan Gulf region

	1988		2002		2007		Percentage of land-use change
Land use	(km^2)	(%)	(km^2)	(%)	(km^2)	(%)	1988–2002	2002–2007	1988–2007
Cropland	108.91	12.64	135.26	15.70	187.42	21.76	+24.20	+38.56	+72.09
Orchard	9.34	1.08	7.07	0.82	2.26	0.26	−24.31	−68.06	−75.82
Woodland	490.91	56.99	442.37	51.36	368.76	42.81	−9.89	−16.64	−24.88
Built-up area	9.63	1.12	35.91	4.17	63.91	7.42	+273.07	+77.94	+563.86
Beach	67.93	7.89	41.75	4.85	12.29	1.43	−38.54	−70.56	−81.90
Aquaculture	8.22	0.95	62.05	7.20	81.51	9.46	+654.46	+31.36	+891.07
Water body	161.84	18.79	123.40	14.33	132.73	15.41	−23.75	+7.56	−17.99
Unused land	4.55	0.53	13.52	1.57	12.46	1.45	+197.13	−7.87	+173.76

Figure 2. Land use map in Louyuan Gulf region in 1988, 2007.

Table 2. Percentage of land use converted to specific land-use groups during 1988–2007

Change to	Change from	1988–2002	2002–2007	1988–2007	Change to	Change from	1988–2002	2002–2007	1988–2007
Cropland	Orchard	2.80	0.37	2.80	Beach	Cropland	0.79	0.18	0.90
	Woodland	51.47	51.13	64.30		Orchard	0.00	0.00	0.00
	Built-up land	3.00	4.14	1.47		Woodland	1.30	0.37	2.44
	Beach	7.06	0.04	3.06		Built-up land	0.20	1.00	0.01
	Aquaculture	0.05	0.79	0.06		Aquaculture	0.18	7.13	0.01
	Water body	1.92	0.79	1.50		Water body	57.05	6.90	65.35
	Unused land	0.43	2.34	0.77		Unused land	0.03	0.18	0.18
Orchard	Cropland	2.05	4.98	9.80	Aqua culture	Cropland	6.61	5.85	7.68
	Woodland	96.58	93.29	90.04		Orchard	0.05	0.00	0.02
	Built-up land	0.00	0.00	0.00		Woodland	5.47	0.87	6.15
	Beach	0.00	0.00	0.00		Built-up land	1.95	5.24	2.04
	Aquaculture	0.00	0.00	0.00		Beach	46.06	12.22	45.05
	Water body	0.00	0.24	0.00		Water body	27.15	13.33	29.40
	Unused land	0.83	0.20	0.16		Unused land	0.09	0.42	0.26
Woodland	Cropland	9.45	7.40	7.87	Water body	Cropland	1.06	0.96	1.09
	Orchard	1.07	1.68	0.83		Orchard	0.14	0.01	0.11
	Built-up land	0.17	0.42	0.10		Woodland	2.19	1.01	2.05
	Beach	0.19	0.01	0.15		Built-up land	0.25	0.94	0.20
	Aquaculture	0.00	0.06	0.00		Beach	4.15	15.10	6.02
	Water body	0.47	0.18	0.44		Aquaculture	0.08	2.23	0.13
	Unused land	0.74	1.85	0.62		Unused land	0.13	0.02	0.11
Built-up land	Cropland	38.90	38.41	34.81	Unused land	Cropland	18.07	14.01	7.75
	Orchard	1.20	0.12	1.28		Orchard	1.19	0.33	0.44
	Woodland	24.22	11.08	27.15		Woodland	76.24	69.25	86.42
	Beach	19.37	2.05	20.42		Built-up land	0.61	3.45	0.12
	Aquaculture	0.43	9.30	0.46		Beach	0.45	0.16	1.28
	Water body	6.96	6.05	8.68		Aquaculture	0.00	1.03	0.04
	Unused land	0.09	0.81	0.06		Water body	1.05	0.26	0.66

Table 3. Overview of changes in major land-use groups from 1988 to 2007 in Louyuan Gulf region

	Land use in 1988 (%)
Land use	Unchanged in 2007	Lost to other classes in 2007	Gained from other classes in 2007	Net gain/loss (%)
Cropland	44.76	55.24	127.12	+71.88
Woodland	67.63	32.37	7.52	−24.85
Built-up land	47.37	52.63	615.60	+562.97
Beach	5.64	94.36	12.47	−81.89
Aquaculture	93.02	6.98	896.87	+889.88
Water body	74.01	25.99	7.96	−18.03

Table 4. Landscape metrics at landscape level from 1988 to2007 in Louyuan Gulf region

Year	NP	PD	LPI	LSI	FRAC_AM	CONT	COHES	SPLIT	SHDI
1988	1346	1.56	55.13	31.10	1.26	63.22	99.72	2.97	1.27
2002	1647	1.91	28.80	43.93	1.28	55.99	99.60	7.10	1.48
2007	1686	1.96	15.97	46.67	1.58	54.12	99.37	12.57	1.54

Table 5. Landscape metrics at class level from 1988 to2007 in Louyuan Gulf region

Land use	Year	NP	PLAND	PD	LPI	LSI	MPS	FRAC_AM	COHES
Cropland	1988	624	12.65	0.72	1.89	61.66	17.45	1.25	97.79
	2002	662	15.70	0.77	3.27	74.45	20.43	1.26	97.91
	2007	576	21.76	0.67	3.00	71.17	32.54	1.15	98.45
Orchard	1988	184	1.08	0.21	0.23	24.53	5.07	1.14	90.30
	2002	203	0.82	0.24	0.04	35.62	3.48	1.19	87.04
	2007	98	0.26	0.11	0.01	22.81	2.30	1.17	81.13
Woodland	1988	249	57.00	0.29	55.14	30.48	197.15	1.32	99.93
	2002	135	51.36	0.16	28.80	44.55	327.68	1.34	99.88
	2007	236	42.81	0.27	15.97	43.19	156.25	1.13	99.77
Built-up land	1988	132	1.12	0.15	0.16	23.52	7.29	1.15	91.61
	2002	223	4.17	0.26	0.85	33.84	16.11	1.20	96.45
	2007	287	7.42	0.33	1.42	48.36	22.27	1.15	98.16
Beach	1988	66	7.89	0.08	2.54	16.05	102.93	1.19	98.96
	2002	43	4.85	0.05	3.20	12.29	97.10	1.20	99.02
	2007	35	1.43	0.04	0.91	14.46	35.13	1.18	97.96
Aquaculture	1988	6	0.95	0.01	0.65	5.63	137.07	1.15	98.20
	2002	96	7.20	0.11	2.83	13.91	64.63	1.15	98.51
	2007	138	9.46	0.16	4.82	19.20	59.06	1.13	98.89
Water body	1988	66	18.79	0.08	17.63	10.30	245.21	1.18	99.63
	2002	58	14.33	0.07	12.59	9.51	212.76	1.18	99.55
	2007	55	15.41	0.06	14.17	33.42	241.32	1.11	99.62
Unused land	1988	19	0.53	0.02	0.10	7.74	23.95	1.12	95.18
	2002	227	1.57	0.26	0.12	30.71	5.96	1.15	90.75
	2007	261	1.45	0.30	0.05	33.42	4.77	1.14	88.14