The first thing we will do is add a column to the wetland layer to indicate which are flood prone. To do this, we need to use the ‘field calculator’ functionality in QGIS. Follow these steps:
Jambo la kwanza sisi kufanya ni kuongeza safu katika safu ya ardhi oevu ili kuonyesha wapi ni hatari kwa mafuriko. Kufanya hivi, tunahitaji kutumia ‘field calculator’ kinachofanya kazi ndani ya QGIS. Fuata hatua hizi: