Proposal for an irrigation system that will divert flood waters and benefit riverbank farmers

In order to divert flood waters, one should have a large water basin, with small man made streams flowing into a larger body of water, like a lake or river. An example of this is the irrigation system that greenhouses use. They collect rain water, and use it as a source of irrigation, but rather than using it, you would be diverting it into the earth into a natural way.

How either some or all of the organisms in this activity are related to one another based