遥感技术在河湖"四乱"整治成效评估中的应用OA

Zhenjiang Economic and Technological Development Zone(hereinafter referred to as"Zhenjiang ETDZ")features a dense river network and concentrated industries,with prominent"four illegal acts"(illegal occupation,illegal mining,illegal dumping,and illegal construction)issues such as ports,wharves and storage yards encroachment on shorelines,industrial and domestic waste accumulation,and unauthorized constructions along the Yangtze River.These problems severely threaten the integrity of aquatic ecosystems and the functionality of watersheds,making their remediation a critical link in ecological governance.Remote sensing technology,with its unique advantages of macro coverage,dynamic monitoring,and multi-temporal analysis,serves as the core technical support for assessing the effectiveness of"four illegal acts"remediation in this region.Taking Zhenjiang ETDZ as a case study,this paper systematically elaborates on the application pathways of remote sensing technology from theoretical foundations and technical methods,aiming to provide replicable practical experience for evaluating the effectiveness of rivers and lakes"four illegal acts"remediation in similar areas,and to promote the transition from"manual inspections"to"remote sensing supervision"in watershed ecological governance.