The area around Al Diwaniyah, which is well
irrigated from the nearby
Euphrates river, is often considered to be one on the most fertile parts of Iraq, and is heavily cultivated. The town is located on the main
rail transport corridor between
Baghdad and
Basra in south-central Iraq. For
birdwatchers, Al-Diwaniyah is a city with a rich bird list, as the city has a wide range of biodiversity. Al-Qadisiyah consists of vast agricultural areas, wetlands, arid zones, and semi-desert areas. The city is the site of a
tire manufacturing plant that once provided tires for much of Iraq. The plant is still active as of 2008. Al-Diwaniyah is the headquarters of the
Iraqi Army's
8th Division. Fortress Zarb (Dhirb) Castle is named after Dhirb Al-Khuza'i, an Emir of the
Khaza'il. == Climate ==