Based on the analysis of the factors affecting the migration of peasant workers and the explanation of becoming permanent urban residents, this research takes migration mode (migration) as the dependent variable, sex (sex), age (age), monthly income (income), education degree (edu), working...

The situation of plants on the slope can reflect the effect of vegetation restoration during the process of artificial vegetation recovery. Taking the typical damaged slope of Wenchuan earthquake area as the research object, through observing the vegetation situation of deserted slope, the...