黑钙土

阿特拉津对我国东北半干旱区黑钙土微生物活性影响研究

degraded chernozem

chernozem-like soil

clay pan chernozem

chernozem【土壤】

chernozem-like meadow soil

mountain chernozem

chernozem with pseudomycelium

meadow chernozem