According to data of per capita net income of rural households and the per capita regional gross output from 1978 to 2008 provided by the Henan Statistical Yearbook , we know that both of the time series obey the unit root process, so they belong to non-stationary time series. The results of the...

Based on the research technology of scholars’ prediction of farmers’ income and the data of per capita annual net income in rural households in Henan Statistical Yearbook from 1979 to 2009, it is found that time series of farmers’ income is in accordance with I(2)...

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...

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...