基于改进灰色关联分析法的湖南省城市土地可持续利用评价

从资源环境、经济发展和社会和谐3个方面构建城市土地可持续利用评价指标体系.采用改进灰色关联分析法,对湖南省城市土地可持续利用水平进行综合评价.结果表明:(1) 2000-2010年,湖南省城市土地可持续利用状态从较低水平发展为较高水平,但仍有较大提升空间；(2)对城市土地可持续利用影响最大的因素是资源环境,其次是社会和谐,最后是经济发展；(3)资源环境、经济发展与社会和谐子目标的灰色关联度总体呈上升态势,但社会和谐子目标在11a间呈现较大波动.为进一步提高湖南省城市土地可持续利用水平,应进一步加快经济发展速度,加大城市土地内涵挖潜,优化土地利用结构,加强环境保护,加快城市交通和基础设施建设,加大公共设施用地比重.

Evaluation of Urban Land Sustainable Use in Hu'nan Province Based on Improved Grey Relational Analysis

An evaluation index system of sustainable urban land use was established from the three aspects of resource environment,economic development and social harmony and the improved grey relational analysis was adopted to evaluate the sustainable urban land use in Hu'nan Province.Results show that:(1)The status of urban land sustainable use experienced from a lower level to a higher level in Hu'nan Province from 2000to 2010,but there was still a large space for improvement.(2)The most important factor affecting sustainable urban land use was the resource environment,followed by social harmony and economic development.(3)Overall,the gray relating degree for the three sub-goals increased,but the sub-goal of social harmony fluctuated greatly.To improve the level of sustainable urban land use,people should further accelerate the economic development,explore the potential of urban land use,optimize the structure of urban land use,strengthen environmental protection,speed up the urban traffic and infrastructure construction,and increase the proportion of land for public facilities.