Two comparative approaches to identify the conservation priority areas impacted by heavy metals on Yellow Sea coasts

摘要: This study aimed to develop a practical approach identify the priority areas with ecological significance along highly human disturbed coastal areas. Field surveys were used assess and complement results of remote sensing (RS)-based analysis. The RS-based biodiversity hotspot (BH) identification process was accomplished in three steps. lands native vegetation cover, including national natural reserve lands, first selected as baseline BHs (BBHs). Then, after assigning resistance coefficients each land use, least accumulative cost (LAC) BBHs calculated by distance analysis, while normalized differential index (NDVI) from Landsat Thematic Mapper reclassified into 20 grades based on Euclidean main anthropogenic sources. Finally, BH realized through logistic calculation LAC less than series thresholds NDVI more 10. While field survey-based between HM potential risks low moderate acquired NDVI-based integrated assessments. proved that analysis could be an important surrogate for necessary manage coasts.