《Table 2 Description of the selected landscape metrics (McGarigal and Marks, 1995)》

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《Evaluating and modeling the spatiotemporal pattern of regional-scale salinized land expansion in highly sensitive shoreline landscape of southeastern Iran》

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Note:NP，number of patches；PD，patch density；MPS，mean patch size；MNN，mean nearest neighbor distance；LPI，largest patch index.

A pixel-based procedure was used to evaluate the accuracy of the classification process based on overall accuracy and Kappa coefficient statistics.Reference sample points were equally distributed between marginal and interior pixels of salinized land polygons to avoid biased accuracy results，especially the effect of positional error（see Lunetta and Lyon，2004）.A small set of landscape metrics including the number of patches（NP），patch density（PD），mean patch size（MPS），mean nearest neighbor distance（MNN）and largest patch index（LPI）.NP and MPS metrics were chosen to investigate the degree of dispersive/organic（edge growth）pattern of salt land expansion.Spatial continuity of salt land expansion was also explored through quantification of PD and MNN.LPI was used to estimate the proportional growth rate of the largest salt land patch located in the southeastern study area.Table 2 provided a brief explanation of the selected landscape metrics in this research.