Abstract:

According to the statistics of farmland resources and social economy data of Xichou County in nearly 17 years (1990~2006), the paper has analyzed the leading factors on increasing food yield in rock-desertification area of Xichou County with principal component analysis method. The result indicates that the contribution ratio of farmland quality reached 69.85%, and that of economic investment was 20.29%, this shows that the farmland quality is the dominant factor leading to food increase, which mainly benefits from implementing of Land Consolidation Pattern in Xichou County. Because of the lack of reserved farmland resources and the trend of farmland decrease for the need of economic construction, only by constancy push on land consolidation, practically strengthen soil improvement, improve farmland infrastructure construction, the farmland quality can been heightened and food output will been increased.