'a rich terrain' is a correct and usable phrase in written English.
You can use it when you want to refer to a landscape or area that is lush and varied, with plenty of resources and variety of plants, animals, and habitats. For example: "The Amazon rainforest is a rich terrain with an abundance of flora and fauna."
As a repertory subject, Carter offers rich terrain: He had an unmistakable and hugely influential sound on alto; an innovative style as an arranger, both for bandstand purposes and behind the scenes in Hollywood, which he helped integrate; and a career that actively spanned almost every era of jazz.
While a post-apocalyptic novel set in a monastery may not strike most readers as rich terrain for comedy, "A Canticle for Leibowitz" is a surprisingly funny book, in small ways and large.
(Nate Chinen) PABLO ASLAN'S AVANTANGO SEXTET (Friday) The Argentine bassist Pablo Aslan, a prominent figure in the thriving jazz-tango subculture, leads a group that rigorously explores that rich terrain.
This rich terrain of ideas is a battlefield from which the painting struggles to emerge as an entity in its own right, resonating an age old dilema central to understanding who we are as a species.
At the Serpentine, a series of Insomnia Labs will explore the rich terrain between creativity and sleeplessness.
Objections to pornography as damaging to children are as valid as a defense of pornography on free speech grounds, he said, which makes the area rich terrain for television.
I think it's rich terrain.
It is no wonder that even the humblest desktop rock provided rich terrain for imaginative journeying.
He still needs too much to be right about his relationship with his father to allow himself to wander into the rich terrain of being wrong.
School, from kindergarten to twelfth grade, is rich terrain for tumult and transformation, and it can be thrilling to see those upheavals explored in fiction.
