In the article, researchers discuss the ideas of economic forests and ecological forests when turning farmland into forests. They look at the types of trees planted and how they're managed. By understanding these concepts better and considering the environment and local economy, they can decide how many of each type of forest to have. Through studying different views and real cases, they find that adjusting the balance between economic and ecological forests can help support both the environment and the economy. Increasing economic forests in suitable areas can boost income and stability in society while making the land conversion sustainable. The key idea is that finding the right balance between these types of forests is crucial for successful farmland-to-forest projects.