rainwater harvesting in the Sahel
... that zaï planting pits are an indigenous form of rainwater harvesting in the Sahel?
... that <i id="mwBAk"><a href="./Zaï" id="mwBAo" rel="mw:WikiLink" title="Zaï">zaï</a></i> planting pits are an indigenous form of <b id="mwBAs"><a href="./Rainwater_harvesting_in_the_Sahel" id="mwBAw" rel="mw:WikiLink" title="Rainwater harvesting in the Sahel">rainwater harvesting in the Sahel</a></b>?