Monitoring Restoration of the Eastern Usangu Wetland by Assessment of Land Use and Cover ChangesReportar como inadecuado




Monitoring Restoration of the Eastern Usangu Wetland by Assessment of Land Use and Cover Changes - Descarga este documento en PDF. Documentación en PDF para descargar gratis. Disponible también para leer online.

Conflicting interests in the use and management of wetlands have always resulted in their degradation.The degradation of wetlands affects their natural functioning, environmental health andlivelihood of the people who depend on them. The eastern Usangu wetland has suffered a lot frommultiple-use pressure arising from both national and local interests. As a result, the governmentbanned the use of the wetland in 2006 to support its restoration process. The aim of the currentstudy was to assess the restoration process of the eastern Usangu wetland using time-seriesLandsat images over a 20-year period, from 1995 to 2015. Cross-tabulation of composite NDVIimages was used to examine the changes. The results indicate that the land cover declined by 20%between 1995 and 2005, and increased by more than 25% between 2005 and 2015. The size of thepermanent swamp increased consistently, by more than 15% between 1995 and 2015. Wetlanduse has declined to about 15% over the 20 years. Wetland restoration seems to be a slow processthat depends on multiple factors. It thus is important that wetlands are managed well for sustainedbenefits, rather than waiting to rescue them in a crisis. The well-being of the people dependingon the wetlands should be considered when implementing measures to protect the wetlands.Awareness creation among the users, diversification of sources of income and enforcementof the laws and policies governing the use of wetlands by the government may improve status ofwetlands.

KEYWORDS

Tanzania, NDVI, Change Detection, Perennial Swamps

Cite this paper

John Mwita, E. 2016 Monitoring Restoration of the Eastern Usangu Wetland by Assessment of Land Use and Cover Changes. Advances in Remote Sensing, 5, 145-156. doi: 10.4236-ars.2016.52012.





Autor: Emiliana John Mwita

Fuente: http://www.scirp.org/



DESCARGAR PDF




Documentos relacionados