Development of green infrastructure to optimize landscape ecosystem services in flood control efforts in the coastal area of Palu city

Abstract

Abstract Urban development is characterized by increasing population implications of changes in the structure of the city landscape. Various problems are found in the course of urban development. One of the problems caused by increased urban activity and also experienced by the city of Palu is flooding. The role of landscapes through the development of green infrastructure is expected to provide ecosystem services in particular in its function for flood control. The aim of this research is to formulate the development of green infrastructure to optimize the services of landscape ecosystems in flood control efforts in the coastal area of Kota Palu. The method used is to use the method of determining the spread of flood stagnation using cloud computing-based image processing techniques to further formulate the development of green infrastructure on the coastal landscape of Kota Palu spatially using geographic information systems. Observations of estimated flood shelter spread show that flood scales are present almost throughout the research area. According to the results of the spatial analysis of the determination of the area of development of green infrastructure obtained five classes of development area i.e. the area is very suitable for an area of 8233.63 ha, respectively of 5030.24 ha, quite suited for 3157.93 ha. less suitable of 2847.36 ha and not suited of 171.01 ha. Green infrastructure development in the coastal area of the City of Palu is focused on the zone according to very high and available location refers to the highest accumulation score of each criterion scores which has an area of 626.74 ha spread over several areas of sub district namely Pantoloan, Baiya, Lambara, Panau, Mamboro, Layana Indah, Tondo, Talise, Mid, Besusu West, Tanodamare Balaroa, Lodi, Donggala, Kabon, Sila, Tipo, Buluri. The development of green infrastructure as an effort to control flooding in the coastal area of Palu City can be pursued through the provision of green open space and retention ponds allocated in a predetermined space.