Abstract:
The cultivated land spatial distribution and changes of Dujiangyan city by using quadrate analysis and Kernel Density Estimation were considerd. By using the landscape pattern indexes, trend of cultivated land fragmentation for Dujiangyan city were analyzed. Finally, a comparative analysis of the cultivated land fragmentation index and the artificial disturbance index was given. The results showed that the cultivated land in Dujiangyan city was centrally distributed in the southeastern of the region; the fragmentation degree of cultivated land in Dujiangyan city tended to increase; cultivated land fragmentation index associated closely with the artificial disturbance index, and the regions with high cultivated land fragmentation index were more affected on the influence degree by the artificial disturbance index, and the regions with low cultivated land fragmentation index were less affected on the influence degree by the artificial disturbance index. According to different features of various density zoning, the reference for land management and land consolidation was provided.