water storage tank. johad rainwater storage tank. pokhar or a percolation pond, rajhasthan. india

rainwater storage tank alwar district locals johad wild trees embankment raised wall mound earth stones hold water dry atmosphere trapping heat warm planet preventing extreme temperature system earthen slope conserve johadwater conservation surrounded bank annual rainfall low unpleasant stored johads pokhar percolation pond communityowned traditional harvested wetland harnessing resources collects dispersed villages rajasthan 39aph39 drink rajhasthan india