This paper establishes an index system which is composed of 17 indexes in 5 subsystems by adding an index of cultural industry, uses principal component method to analyze Anhuis sustainability in its mining economy, and gives suggestions for future development. Among Anhui's 6 mining economic zones, their sustainability in economy ranks downward, Maanshan steel and mining zone, TonglingFanchang nonferrous and chemical mining zone, 〖JP3〗Huainan coal and coal chemical mining zone, Huaibei coal and coal chemical mining zone, Huoqiu iron ore mining zone, Lujiang mining zone. The sustainable development of mining zones requires a concerted development among its subsystems, which can intensify their sustainability. Anhuis six mining zones shall be cooperative with their complimentary advantages.

This paper, based on the "Farmland Grades in Yunnan province", studies the regional distribution and slope of farmlands in five subareas in Yunnan province, discusses the major issues in basic farmland and plowland utilization and protection, presents some approaches to farmland protection, including a rational basic farmland layout, the basic farmland protection model areas, renovation, and supervision.