吕梁市耕地集约利用评价

Evaluation of Intensive Utilization of Cultivated Land in Lvliang City

随着人口数量的增加,城镇化进程的加快及农业生产结构的调整,吕梁市出现了耕地面积日趋减少、人地矛盾尖锐等问题。因此,转变粗放的耕地利用方式,走集约利用道路变得极为重要。本文运用层次分析法,通过选取投入强度、利用程度、产出效益3个方面的10个指标,建立目标层、准则层、指标层的吕梁市耕地集约利用评价体系,计算出全市2013年的耕地集约度,评价其耕地集约利用水平。结果表明,吕梁市耕地集约利用水平区域差异较大,表现为吕梁山区中部及其西坡地区耕地集约利用程度较低,而晋西黄土丘陵和晋中盆地地区较高;2013年吕梁市集约利用综合指数低于平均水平;吕梁市耕地集约利用水平分为4个等级,Ⅰ级集约利用区有3个县,占所有县(市、区)的23%;Ⅱ级集约利用区有4个县,占31%;Ⅲ级集约利用区有5个县,占38%;Ⅳ级集约利用区仅有1个县,占8%;吕梁市耕地集约利用水平还存在很大的上升空间。

With the increase of population,the acceleration of urbanization and the adjustment of agricultural production structure,there are some problems in Lvliang City,such as the decrease of cultivated land area and the sharp contradiction between people and land.Therefore,it is extremely important to change the extensive utilization of cultivated land and take the road of intensive utilization.In this paper,by using the analytic hierarchy process,through the selection of 10 indexes of input intensity,utilization degree and output benefit,the evaluation system of cultivated land intensive use in Lvliang City was established at the target level,criterion level and indicator level,and the cultivated land intensive utilization in 2013 was calculated and evaluated.The results showed that the regional difference of intensive utilization of cultivated land in Lvliang City was large,and the intensive utilization of cultivated land in the central and western slope areas of Lvliang mountain area was generally low,while the loess hills in the west of Shanxi Province and the central basin in the east of Shanxi Province were generally high.In 2013,the comprehensive index of intensive utilization in Lvliang City was lower than the average level.The intensive utilization of cultivated land in Lvliang City was divided into four levels,three counties in level I intensive use area,accounting for 23% of all counties(cities and districts);four counties in level II intensive use area,accounting for 31%;five counties in level III intensive use area,accounting for 38%;and only one county in level IV intensive use area,accounting for 8%.In Lvliang City,the level of intensive utilization of cultivated land still has a large space to rise.