A buzzword without clear definition. Ecopoetics is not poetry about nature or the ecological crisis but a search for ways to use language to better appreciate/understand the interconnectedness of human, animal, mind, matter and nature. Language not as an object but as a motion.
EcoPoetics is the emergent Esperanto of the imaginary transition town nomad.
But that's my Mumbo Jumbo take.
The Ecopoetics Journal takes it to mean “exploring creative-critical edges between writing (with an emphasis on poetry) and ecology (the theory and praxis of deliberate earthlings)”. Which is not a definition but a program.
But wait, redirect to Ecocriticism, better established and with many book previews at books.google:
Ecocriticism is the study of literature and environment from an interdisciplinary point of view where all sciences come together to analyze the environment and brainstorm possible solutions for the correction of the contemporary environmental situation. Ecocriticism was officially heralded by the publication of two seminal works, both published in the mid-1990s: The Ecocriticism Reader, edited by Cheryll Glotfelty and Harold Fromm, and The Environmental Imagination, by Lawrence Buell.