Spatial Assessment of Landscape Structure Changes and Ecological Connectivity in Pariaman

Abstract

The human population grows it has increased built-up areas for residential and infrastructure. This phenomenon has become a threat to the functionality of ecosystems and biodiversity. There many case human activities in land developing used for built-up area, it gives impact as landscape fragmentation and decreases larges of habitat in the last decade. It influences ecological connectivity in Padang Pariaman Regency. The aim of this research to investigating changes in landscape structure and ecological connectivity. The method used in this research is image analysis and spatial modeling ECIb. Data used in this research Landsat TM5 and Landsat OLI8; processing data used geographical information system in map scale at 1:50.000. Result of this research, in 8 years there has found the landscape structure disturbed. The reason the dilemmatic of this landscape structure because of land expansion. From imagery data and comparison between 2010 and 2018, in data 2018 there has many land changes to be semi-natural, plantation, and built-up area, where it also influences ecological connectivity. We found in 2010 where many ecosystems have strong connectivity because of many vegetation on the natural landscape, however, in 2018 the connectivity has decreased because many barrier objects to be problematic of connection to species living in this ecosystem.