Vegetation cover change and driving factors in Fujian Province between 1975 and 2014

doi:10.17521/cjpe.2016.0223

Abstract

Abstract:

Aims Fujian Province has been one of the most severe soil erosion regions since Ming and Qing Dynasty in China. Recently, several ecological restoration projects have been implemented and they have significantly changed vegetation cover in this region.
Methods We analyzed the four-decade vegetation cover change in Fujian Province using seven time-series data of Landsat Multispectral Scanner (MSS), Thematic Mapper (TM), and Operational Land Imager (OLI) between 1975 and 2014. We further explored the possible drivers on vegetation cover change by incorporating statistical data of plantation, cropland and urbanized area.
Important findings Vegetation coverage in Fujian Province has increased from 69.0% to 77.8% between 1975 and 2014. However, a slight decrease was observed between 1995 and 2005. Spatially, forest was the primary vegetation type in the northwest, where croplands and human settlements were scattered along rivers or oceans. Shrubs and bare lands were also scattered across the northwest. In southwest, the areas of bare land, shrub land and cropland decreased, while areas of forest and human settlements expanded. The vegetation coverage and urbanized area increased at the cost of cropland and bare land.

Key words: land coverage, Landsat TM/MSS/OLI, long-term vegetation dynamics, driving factors, vegetation ecology

Chao LI, Shu-Qing ZHAO, Jing-Yun FANG. Vegetation cover change and driving factors in Fujian Province between 1975 and 2014[J]. Chin J Plan Ecolo, 2017, 41(2): 157-164.

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URL: https://www.plant-ecology.com/EN/10.17521/cjpe.2016.0223

https://www.plant-ecology.com/EN/Y2017/V41/I2/157

Figures/Tables 8

References 31

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卫星参数 Satellite parameter	卫星高度 Satellite height (km)	倾角 Orbit inclination (°)	覆盖周期 Overlapping period (d)	扫幅宽度 Scanning width (km)	波段数 Band number	机载传感器 Borne sensor	空间分辨率 Spatial resolution (m)
LandSat 1	920	99.125	18	185	4	MSS	78
LandSat 2	920	99.125	18	185	4	MSS	78
LandSat 3	920	99.125	18	185	4	MSS	78
LandSat 4	705	98.22	16	185	7	MSS, TM	30, 120
LandSat 5	705	98.22	16	185	7	MSS, TM	30, 120
LandSat 8	705	98.20	16	80	11	OLI, TIRS	15, 30, 100

卫星参数 Satellite parameter	卫星高度 Satellite height (km)	倾角 Orbit inclination (°)	覆盖周期 Overlapping period (d)	扫幅宽度 Scanning width (km)	波段数 Band number	机载传感器 Borne sensor	空间分辨率 Spatial resolution (m)
LandSat 1	920	99.125	18	185	4	MSS	78
LandSat 2	920	99.125	18	185	4	MSS	78
LandSat 3	920	99.125	18	185	4	MSS	78
LandSat 4	705	98.22	16	185	7	MSS, TM	30, 120
LandSat 5	705	98.22	16	185	7	MSS, TM	30, 120
LandSat 8	705	98.20	16	80	11	OLI, TIRS	15, 30, 100

年份 Year	1975	1985	1995	2000	2005	2010	2014
总体精度 Total accuracy (%)	82.0	81.3	88.2	88.0	91.2	90.8	90.5
Kappa系数 Kappa coefficient	0.784	0.786	0.848	0.846	0.874	0.869	0.867

年份 Year	1975	1985	1995	2000	2005	2010	2014
总体精度 Total accuracy (%)	82.0	81.3	88.2	88.0	91.2	90.8	90.5
Kappa系数 Kappa coefficient	0.784	0.786	0.848	0.846	0.874	0.869	0.867

	森林Forest	人工林 Plantation	城镇 Urban	农田 Cropland	灌丛和草丛 Shrub & grass	裸地 Bare land	未分类用地 Unclassified	植被覆盖 Vegetation cover	植被覆盖率 Vegetation cover rate (%)
1975	6.334	1.640	0.047	1.450	2.043	1.889	0.377	8.377	69.0
1985	7.155	1.730	0.067	1.426	1.642	1.602	0.248	8.797	72.5
1995	7.117	3.060	0.154	1.392	1.993	1.403	0.081	9.111	75.0
2000	7.332	3.200	0.178	1.383	1.739	1.456	0.052	9.071	74.7
2005	7.393	3.390	0.212	1.348	1.538	1.493	0.156	8.931	73.6
2010	7.506	3.590	0.244	1.336	1.863	1.107	0.084	9.369	77.2
2014	8.060	3.980	0.268	1.311	1.382	1.079	0.040	9.442	77.8
面积变化 Area change	1.726	2.340	0.221	-0.139	-0.661	-0.810	-0.337	1.065
贡献率(%) Contribution rate	162.1	219.7	20.8	-13.1	-62.1	-76.1	-31.6	100