秦岭土地利用生态效益研究

Study on the Ecological Benefit of Land Use in Qinling Mountains

土地利用生态效益的优劣对秦岭地区的可持续发展具有重要的作用。本文以秦岭土地利用生态效益为目标层,确定指标体系,采用极差标准化方法、AHP法、熵权法、乘法集成法、综合评定法、变异系数法对秦岭2000-2016年土地利用生态效益值及协调度进行测算和分析。结果表明:2011年为生态效益变化曲线波动最大的一次,其余2次变化波动不太明显,整体呈现波动性上升;渭南市在研究期内生态效益值增长最缓慢,安康市在研究期内生态效益值增长最快,其余各市增长平稳。生态效益协调度曲线总体呈现上升趋势,2009-2012年秦岭及所辖城市的协调度为研究期内最佳阶段。最后根据本文数据分析结果提出秦岭土地利用可持续发展的建议。

The advantages and disadvantages of land use ecological benefits play an important role in the sustainable development of Qinling region.In this paper,the ecological benefit of land use in the Qinling Mountains was taken as the target and the index system was determined.The range standardization method,AHP method,entropy weight method,multiplication integration method,comprehensive evaluation method and variation coefficient method were used to measure and analyze the ecological benefit and coordination of land use in Qinling Mountains from 2000 to 2016.The results showed that 2011 was the largest fluctuation in the ecological benefit curve,the other two changes were not so obvious,and the overall fluctuation increased,while the value of ecological benefit in Weinan city increased the most slowly during the period of study.However,the value of ecological benefit in Ankang city increased the fastest,and the other cities grew steadily.The coordination degree curve of ecological benefit showed an upward trend in general.The coordination degree of Qinling Mountains and the cities under its jurisdiction from 2009-2012 was the best stage.Finally,according to the data of this paper,the suggestions of sustainable development of land use in Qinling Mountains were put forward.