摘要
为克服现有"两型社会"评价中存在的主观性强、不易处理高维数据等缺陷,提出了基于投影寻踪法的武汉市"两型社会"评价新方法。从资源、环境、经济、社会四个子系统出发,构建了武汉市"两型社会"评价指标体系;选取武汉市2000—2009年数据作为样本,将多维评价指标值投影为一维投影数据;引入加速遗传算法,优化投影指标函数寻求最佳投影方向;根据投影值大小对武汉市2000—2009年"两型社会"发展状况进行比较,利用最佳投影方向信息研究了各个指标对武汉市"两型社会"发展的影响程度。研究结果表明,2000—2009年,武汉市"两型社会"建设呈现出良好的发展态势,建成区绿化覆盖率、人均公共绿地面积、第三产业增加值占GDP比重、空气质量优良率、每千人口医院床位数、工业用水重复利用率、每万人在校大学生人数、单位GDP能耗、每万人拥有公共交通车辆等指标是武汉市"两型社会"建设的重要驱动因素。对此就武汉市建设"两型社会"提出了对策和建议。最后,指出投影寻踪模型为城市"两型社会"发展综合评价提供了一种值得探索和尝试的新方法。
To avoid the subjectivity and incapable of dealing with high dimensional dataset arise from conventional methods,this paper proposed a new methodology based on ＂Projection Pursuit Model（PPM）＂ to evaluate the development of resource-saving and environment-friendly society.Firstly,taking Wuhan as a case,evaluation index system was built according to four separate sub-systems that contain the resource,the environment,the economy and the society.Secondly,with the samples from the collection of quantitative data（2000—2009） in Wuhan,the multi-dimension values of the evaluation index of were synthesized into one dimension projection data.Thirdly,Accelerate Genetic Algorithm was introduced to optimize the function and seek the optimum projection vector.Fourthly,according to the projection values and the optimum projection vector,the development of resource-saving and environment-friendly society in Wuhan from 2000 to 2009 and the effect of the selected indexes on the development of resource-saving and environment-friendly society in Wuhan,were determined,respectively.Results indicated that the development of resource-saving and environment-friendly society in Wuhan from 2000 to 2009 presented a trend of accelerated growth.And the Coverage Rate of Green Area in Developed Area,the Per capita Public Green Areas,the Proportion of Tertiary Industry in GDP,the Excellent rate of air quality,the Number of Hospital Beds per 1000 population,the Reuse Rate of water use by Industry,the College Students Enrollment per 10000 population,the Unit GDP Energy Consumption,and the per 10000 Capital Public Vehicles were the main driving forces.Finally,corresponding countermeasures and suggestions are put forward to the development of resource-saving and environment-friendly society.Results also showed that the Projection Pursuit Model may served as an alternative method in evaluating the development of resource-saving and environment-friendly society of Urban Area.
出处
《生态学报》
CAS
CSCD
北大核心
2011年第20期6224-6230,共7页
Acta Ecologica Sinica
基金
国家自然科学基金(60974076)
中国博士后科学基金特别资助项目(201003471)
关键词
两型社会
投影寻踪
评价
resource-saving and environment-friendly society
projection pursuit
evaluation
