Spatiotemporal dynamics of new land development in Bangladesh coast and its potential uses

摘要: Abstract Globally, the land has direct links with food security, economic growth, and overall development. The demand for is increasing, but amount of available diminishing every year due to population pressure. This situation an immediate reality in smaller countries like Bangladesh where scarcity a critical problem high density. only way create new develop on coast, restore eroded land, enhance new-land development process through accretion delta. We analyzed Landsat satellite images (1996, 2006 2015) quantify spatiotemporal change area coastal Bangladesh. Random forest (RF) support vector machine (SVM) classification algorithms were used classify into two classes, water. results indicate that net gain was 39.67, 39.12 78.79 km2 during 1996–2006, 2006–2015 1996–2015, respectively. approach revealed dynamics loss spatial information are sparse. If this brought under cultivation, it would fulfill growing cultivable produce 41,898 tons cereal, supporting additional 210,543 people per year. Alternately, same 285,061 Mg ha−1 biomass afforestation. These can serve as baseline policy planning regarding development, restoration, future use.