Ecological and Environmental Effects of Estuarine Wetland Loss Using Keyhole and Landsat Data in Liao River Delta, China

An estuarine wetland is an area of high ecological productivity and biodiversity, it also anthropic activity hotspot area, which concern. The wetlands in areas have suffered declines, had remarkable impacts. land use changes, especially loss, were studied based on Keyhole Landsat images the Liao River delta from 1962 to 2016. dynamics ecosystem service values (ESVs), suitable habitat for birds, soil heavy metal potential risk chosen estimate effects with benefit transfer method, synthetic overlaying index (RI) respectively. driving factors change analyzed redundancy analysis (RDA). results showed that built-up increased 95.98 km2 591.49 2016, this large was followed by changes paddy fields (1351.30 1522.39 km2) dry farmland (189.5 294.14 km2). declined 1823.16 1153.52 a decrease water (546.2 428.96 characterized increasing (516.25%), (12.66%) (55.22%) decline (36.73%) (21.47%) 1962–2016. Wetlands decreased 669.64 km2. ESV 6.24 billion US$ 4.46 means ESVs reduced 19.26% due being cultivated urbanization process. birds 1449.49 km2, or 61.42% total available 1962. Cd primary pollutant its concentration, accumulation, contribution. RDA comprehensive include Cr river oil well distributions. This study provides approach cultivation scientific support conservation.