The West China is main producing region and advantageous producing region of edible beans. Developing industry of edible beans in West China has prominent regional advantage, production advantage, quality advantage, market advantage, and price advantage. We analyze the problems existing in the...

Ethnic minority areas are old revolutionary base areas, areas inhabited by ethnic minorities, remote areas, impoverished areas, and also difficult areas for construction of socialist harmonious society. Studying on factors influencing rural teacher flow in ethnic minority areas is of great...

This paper briefly introduces the concrete steps of EMD (Empirical Mode Decomposition) method, and applies EMD method into the multi-time scale analysis on fluctuation of cultivated land quantity and its driving force in China since 1949. We also reveal the fluctuation law in the amount of...