【摘要】 近年来连云港海域紫菜养殖面积不断增大,为监测其发展趋势,本文利用Landsat-5、Landsat-7和Landsat-8卫星遥感影像为数据源,结合GIS空间分析方法,同时采用2017、2018年海域无人机影像对同期卫星影像目视解译结果开展精度验证,得出紫菜养殖区目视解译精度,以此获取近10年连云港海域紫菜养殖范围、面积和分布变化情况。结合等深线数据,开展不同深度区紫菜养殖面积增加和减少情况分析。该研究从宏观的角度掌握了连云港海州湾海域紫菜养殖的动态变化情况,对连云港市海域使用现状监管和海洋生态环境监测起到一定的技术支撑作用。更多还原

【Abstract】 In recent years,the area of Porphyra cultivation in Haizhou Bay and its adjacent sea areas has been increasing.To monitor its development trend,Landsat-5,Landsat-7 and Landsat-8 satellite remote sensing images were used combined with GIS spatial analysis methods.Meanwhile,images acquired in 2017 and 2018 by the unmanned aerial vehicles were utilized to verify the accuracies of visual interpretation by satellite images.And changes in the extent,area and distribution of Porphyra cultivation over the past decade in Lianyungang waters were obtained.Based on the data of the isobath,we analyzed the increase and decrease of the area in different depth ranges.This study grasps the dynamic changes of Porphyra cultivation in Haizhou Bay from a macroscopic point of view,and plays a certain technical support role for the regulation of sea area use and the monitoring of marine ecological environment in Lianyungang.更多还原