greened
3.The practice of eco-agriculture has brought about striking improvements in the agricultural ecological environment — barren hills greened, forest acreage greatly raised, soil erosion controlled to some extent.
4.The practice of eco-agriculture has brought about striking improvements in the agricultural ecological environment -- barren hills greened, forest acreage greatly raised, soil erosion controlled to some extent, organic matter content of the soil increased, and the ability of the agricultural ecological system to ward off natural disasters improved.

