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Spatiotemporal dynamic of environmental indices of watershed sustainability in connection with land-use change

Ecosystem Health and Sustainability 2022年第1期8卷 11-25页

作者： Fahimeh Mirchooli Seyed Hamidreza Sadeghi Abdulvahed Khaledi Darvishan Department of watershed Management Engineering Faculty of Natural ResourcesTarbiat Modares UniversityTehranIran

Exploring spatial and temporal land-use changes is valuable for local governments to address issues of sustainability and planning policy where urbanization and industrialization are taking *** anthropogenic effects,natural driving forces like climate change may also affect ***,such relationships have not been studied ***,this study first investigates the land-use changes and their relationship with land surface temperature(LST)for the shazand watershed,Iran,in 1986,1998,2008,and 2016 coincided with supplementary industrialization ***,the relations among LST and other biophysical parameters,including Normalized Difference Vegetation Index(NDVI),Normalized Difference Buildup Index(NDBI),and Normalized Difference Water Index(NDWI),were analyzed,and corresponding variations were *** results indicated that the mean LST of the study watershed has an increasing trend from 1986 to 2008 due to land-use change and drought ***,LST decreased in *** LST was associated with irrigation farming and orchard,and higher LST was related to sparse oak forest *** was also a negative correlation between LST and *** a result,it was inferred that greenery declined ***,a positive correlation was found between LST and NDBI resulting from the built-up *** LST could influence biological,physical,chemical processes,it can therefore be supported as an effective index for environmental sustainability assessment.

关键词： Temperature–emissivity separation algorithm land surface temperature shazand watershed sustainability index sustainability trend watershed monitoring

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