德州市耕地利用效益评价

摘要

运用多因素综合评价法,从经济、社会、生态3方面选取14项指标定量测度德州市2000-2014年耕地利用效益,采用熵值法确定指标权重,并通过协调系数衡量各效益之间的协调性,最后与发达粮食主产区青岛市的耕地利用效益做对比.结果发现:2000年以来德州市耕地利用经济效益和社会效益不断提高,分别从2000年的0.040和0.052提高到2014年的0.262和0.435,生态效益波动下降,从2000年的0.190降低到2014年的0.070;耕地利用各效益间的协调度较低,15年中只有4年在基本协调以上水平,且波动变化大;青岛市耕地利用效益波动上升;德州市与青岛市的差距在于生态效益.德州市在今后的耕地利用中需关注农业生态环境的改善,控制农药和化肥的施用量,提高耕地利用生态效益,实现可持续发展.%This study selects 14 indexes to measure the cultivated land use efficiency in Dezhou City during 2000 to 2014 from 3 aspects of economy,society and ecology.The weight of index is determined by entropy method and the coordination between theeconomic,social and ecological benefits of cultivated land utilization.It is judged by coordination coefficient.And then,the cultivated land use efficiency of the major grain producing areas of Qingdao is compared with Dezhou.The results showed that the economic benefit and social benefit of the cultivated land utilization in Dezhou city increased steadily,respectively from 0.040 and 0.052 in 2000 to 0.262 and 0.435 in 2014,and the ecological benefit was decreased in a fluctuation,from 0.190 in 2000 to 0.070 in 2014.The coordination degree of economic,social and ecological benefits of cultivated land utilization in Dezhou during the past 15 years is relatively low,there were only 4 years at the level of basic coordination and the fluctuation is very large.The cultivated land use efficiency in Qingdao was decreased in a fluctuation.Between Dezhou and Qingdao,the gap in cultivated land use efficiency is the ecological benefits.Dezhou should pay attention to the improvement of agricultural ecological environment in the future utilization of cultivated land and control the use of pesticides and fertilizers.