Extension multi-factorial evaluation method was used in water quality early-earning in Yincungang River based on MATLAB. The results showed that water quality in summer was safe, while that in other three seasons were in pre-warning state with the order of winter>spring>autumn.

On the basis of the investigation on the status quo of pilot area of rural pension insurance in Changsha, Zhuzhou and Xiangtan, farmers’ demand on insuring in the new pilot area of rural pension insurance is expounded from two aspects: farmers’ awareness on insuring is increasing...