This paper took land consolidation project in Shanggao county of the southern China hilly region as an
example, applied methods consisted of outdoor field survey, indoor test analysis and GIS technology, used the former round
of the cultivated land quality grade update method, parameter system, evaluation factors and weights to evaluate the
cultivated land quality grade in the land consolidation construction area in 2011 and 2012, and finally got the results
including the economical grade, utilization grade and natural grade of the cultivated land. At the same time, this paper
analyzed the reasons caused the change of the cultivated land quality grade, which appeared before and after land
consolidation project. The results showed that, compared with the cultivated land quality grade before the land
consolidation, the cultivated land grade rose after land consolidation. The basic infrastructure and drainage condition in the
field improved obviously but the soil nutrients had slight change, this showed that the soil nutrients and the soil quality
were interrelated after the land consolidation project, the soil nutrients could not change in a short time. The effect of land
consolidation project on soil nutrients would be obvious with the extension of time. Evaluating the cultivated land quality
change caused by the land consolidation could realize the comprehensive management of the cultivated land quality and
quantity. The results could be used as the basis of land consolidation work performance evaluation and provide
recommendations for future land consolidation research. |