Peri urban Kofar Ruwa, Nigeria (IMAGE) Bangor University Caption A seasonally flooded site within the old walls of the city of Kano, Northern Nigeria. You can see sites in the foreground are being used for small scale agriculture, but also plots have been marked out for construction and some sand and cement has been deposited ready for the installation of boundary markers. In the background you can see the high value residential areas that have a wall separating their neighbourhood from the agricultural site. Many of the cultivators grow rice in the rainy seasons indicating this is for household consumption. During the dry season the cultivable land reduces to very close to the stream which is heavily polluted by nearby clothes dying works and the residential area. Encroachment on this site for residential development will exacerbate flooding further down the watershed. Credit Professor Kenneth Lynch Usage Restrictions Single use in relation to this story only License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.