Productive, species-rich areas and vegetation growing alongside rivers and streams are known as:

Between rivers or streams, and the dry land are areas covered by lush vegetation called the "riparian zone". These consists of shrubs, grass, and small trees. This area is highly productive due to its close proximity to a water source, as compared to the areas found farther from the rivers. The riparian zone is a terrestrial biome. 

Ur very welcome for