Abstract
Assessing urban ecosystem service monetary values based on remotely sensed data and measurable indicators is essential to raise awareness of their importance and stimulate support for appropriate conservation measures, furthering policy design and for sustainable urban ecosystems management. The objectives of the study are to assess the Urban Green Infrastructure dynamics and measure its total economic contribution to society using fragment analysis of multi-temporal Landsat data and the updated valuation scheme proposed by Costanza et al. (2014).
Six land cover classes were derived with an overall accuracy of 83% and Kappa coefficient 0.74. The Urban Green Infrastructure land cover is decreased from 44.8% in 2010 to 20.4% in 2019, however the built up plus bare land cover has increased from 55% to 80% in the stated period. As a result, the Urban Green Infrastructure of Addis Ababa city has only 19.95 million USD worth services every year for its residents, which was 150.7 million USD ten years ago and 115.0107.6 million USD before the last three years. The result is warning us that we already started to cross the standard recommended by UNHO at negative 9.58%, and if no remedial action is taken, we may completely loss the ecosystem services within seven years.
Key words: Urban Green Infrastructure, Ecosystem Services Valuation, Landsat data Sustainable Development.
