The Zhifanggou watershed in Ansai county is an example of a Loess Hilly Region and the characteristics of nutrient cycling and balance of 1 tree,4 shrub,and 9 herbage vegetation types have been systematically studied during a period of vegetation stabilization and rehabilitation.
Pine and cypress species are currently the main trees used in the construction,but their ecological effect on soil conservation is not quite clear yet.
松柏类乔木是目前我国公墓绿化的主要树种,但对它们控制水土流失的生态功能却不十分清楚。
Separation of Red Pigments from Magnoliaceae×soulangeana Flower by Macroporus Resin Column Chromatography;