Remote Sensing Technology and Application

Spatio-temporal Dynamics of Spartina alterniflora in Tianjin-Hebei Coastal Area

Yongbin ZHANG, Di TIAN, Mingyue LIU, Weidong MAN, Lifang LIANG, Lijie SONG, Caiyao KOU

Remote Sensing Technology and Application, 2025, 40(2): 485-494. DOI: 10.11873/j.issn.1004-0323.2025.2.0485

年份	Shape_Length/km	Shape_Area/km²	CenterX/km	CenterY/km	XStdDist/km	YStdDist/km	Rotation/°	Oblateness
2000	194.45	15.95	560.90	4307.99	0.27	19.01	17.31	0.99
2005	286.68	40.02	559.40	4302.80	0.45	28.06	22.53	0.98
2010	322.78	603.29	1078.57	4319.06	5.71	33.61	10.50	0.83
2015	391.06	1856.86	560.94	4297.59	13.64	43.33	19.59	0.69
2020	206.94	2385.15	565.81	4303.33	16.57	45.83	20.22	0.64
2022	214.78	2470.47	563.44	4289.83	16.37	48.05	17.76	0.66

Table 3 Parameter values of the standard deviation ellipse of the variation of Alternaria Spartina alterniflora in each period

Other figure/table from this article

Fig.1 Overview of the study area
Fig.2 Interannual distribution of Hebei coastal Spartina alterniflora
Fig.3 Interannual distribution of Spartina alterniflora rice in Tianjin Binhai New District
Table 1 Distribution of Spartina alterniflora in various coastal areas of Tianjin-Hebei from 2000 to 2022
Table 2 Changes of expansion intensity and speed index of Spartina alterniflora
Fig.4 Transfer in and out of Spartina alterniflora and other land cover types in Tianjin-Hebei coastal area from 2000 to 2022
Fig.5 Change map of centroid of Spartina alterniflora in Tianjin-Hebei coastal area from 2000 to 2022
Fig.6 Standard deviation ellipse of Spartina alterniflora in Tianjin-Hebei coastal area from 2000 to 2022
Table 4 Fractal dimension of Spartina alterniflora in various regions of the Tianjin-Hebei coastal area