Soil water is an important factor restricting afforestation on the semi-arid Loess Plateau.The microtopography of the loess slope has changed the distribution p
Protected areas are necessary for the conservation and enhancement of biodiversity.Wildfires are major threats to forests and other natural areas,because they m
We analyzed the relationships linking overwintering death and frost cracking to temperature and sunlight as well as the effects of low temperatures and freeze–