Utility of fresh water flooded forests for large scale water harvesting

There are vast areas of fresh water flooded forests in Amazon River, Mekong River and Meghna River (Bangladesh) basins. In these flooded forests, the flora & fauna is richer than tropical ever green forests and many tree species grow more than 20 meters in height. These forests are inundated / submerged by river flood water up to ten meters depth for 5 to 7 months duration at a stretch. This paper avilable at following link explains how the flooded forest trees can be used for large scale water harvesting wherever water is available and needed.

https://docs.google.com/leaf?id=0B35UMaN-aVecNTQzMmE4MGQtMjFkMC00MTFhLWE5YzAtZjY5ZDczOTU5M2Vh&sort=name&layout=list&num=50