Dynamics land cover changes of Wulan Delta in 2003-2017 approach by remote sensing technology

Wulan Delta is a form of landscape in the coastal area of Wedung District, Demak Regency, which was formed due to sedimentation of the Wulan River estuary. Utilization of the delta region into a pond will have an impact on the environment and socio-economic surrounding communities. This study aims to look at the dynamics of land cover changes in Wulan Delta, Wedung District, Demak Regency. Multitemporal remote sensing technology can be used to see the dynamics that occur in the Wulan Delta region. Remote sensing imagery used by Quickbird imagery from 2003 and Worldview imagery from 2017. Based on the results of the interpretation of multitemporal imagery that most of the Wulan delta area is used as ponds. Along with the increase in the pond area, from the socio-economic aspects of the livelihoods of residents in the sub-district of Wedung as pond farmers increased from 2003 to 2017. So that the use of land in the form of ponds has a positive impact as the livelihood of the population. Changes in the area of Wulan Delta between 2003 and 2017 there are delta gain as large as 112,9 ha (7,9 %), delta loss area by 28,78 ha ((2,01 %) and a fixed area of 1287,77 ha (90,09%). Delta area changes also affect land cover changes from mangroves into ponds 29,73 ha (2,08%) and pond to mangrove 8,81 ha (0,62%). The land cover dynamics changes of Wulan Delta also affect the socio-economic conditions of surrounding communities, most of whom work as pond farmer. Calculation of the production value of ponds in the study area is estimated at approximately IDR 39.422.252.670,-.