重庆近5年耕地集约利用水平变化研究

On the Change in Intensive Use Level of Cultivated Land in Chongqing During 2006-2010

为提高土地利用效率,选取2006-2010年间重庆市40个区县的耕地集约利用进行探究.研究采用了层次分析法、极差标准法,Matlab进行数据处理.结果表明:重庆各个区县耕地集约利用整体水平不高,并且伴随着距主城距离的增加而降低,同一地理区位的区县集约利用水平相差不大.研究发现,耕地集约利用受到经济发展水平的影响和地理条件的限制,提高耕地集约利用水平重在提高耕地产出.

In order to improve land use efficiency,the intensive use of cultivated land in 40 districts/counties of Chongqing during 2006-2010 was investigated and the data were processed with analytic hierarchy process（AHP）,range of standard method and Matlab.The results showed that the overall level of intensive use of cultivated land was not high in Chongqing,and it declined with increasing distance to the main urban areas,while no significant differences were found within the same geographical location.The level of intensive use of cultivated land was affected by local economic development and geographical conditions,and emphasis should be placed on improving the output of cultivated land in the efforts to raise the intensive use level of cultivated land.