Evolution Rules of Urban-rural Development and Inspiration for China＇s Agriculture

Based on urban-rural contrast coefficient, this article designs the agriculture relative development index （ARDI） as indicators measuring the intensity of urban rural dual structure which is comparable among the countries of the world. This article calculates ARDI of 40 countries from 1980 to 2004. The result shows that ARDI in the developed countries and most of the middle-income countries are rising and yet there are declines in most of the low-income countries. The result also showed that most countries＇ ARDI will see a decline at the earlier stage of industrialization, so their dual economic structure will also aggravate and urban-rural gap will widen. With the economic development, the tendency will change and ARDI presents a U-shape change overall. The turning point is when a country becomes a middle-income one.     

灰色关联度模型在海洋产业分析中的应用——以辽宁省为例

辽宁省作为中国的海洋资源大省,在国内率先提出"海上辽宁"战略。阐述了辽宁省海洋经济的现状,以动态的分辨系数为基础,用灰色关联度模型对辽宁省的海洋产业特点进行了分析,进而针对辽宁省海洋产业结构应如何调整等问题提出了积极的对策和建议。     

辽宁省14市环境综合发展状况定量研究

良好的生态环境是城市健康、可持续发展的基础和前提,在环境支持能力允许范围内发展经济是世界上各城市正面临的严峻挑战。运用SPSS15.0统计软件,对辽宁省14市10项环境指标进行主成分分析,得出相关结论。从时间上看,辽宁省大部分城市10年间的环境排名变化差异较小;从空间上看,辽西城市带的环境状况较差。提出了辽宁省今后应在环境法规建立、产业转型与产品升级、环保宣传教育等方面加以注意。     

工业遗产旅游资源评价——以辽宁省为例

近20年来,随着西方"逆工业化"大潮下工业遗产旅游案例的成功开发,我国的工业遗产旅游也得到重视并进行了不同程度的开发.以辽宁省不同时期的工业遗产为对象,首次通过对工业遗产意义及遗产资源的相关属性建立评价指标,采用AHP方法进行评价,为辽宁省工业遗产旅游资源的重点、有序开发提供依据.     

基于系统动力学模型的大连市水资源承载力研究

基于大连市水资源现状,采用系统动力学方法建立大连市水资源承载力系统动力学模型.将水资源承载力系统划分为人口、工业、农业、水污染处理及回用、城市环境及水资源6个子系统,在现状延续型、节水型、经济发展型和协调发展型4种方案下模拟了2001-2020年大连市水资源承载力的动态变化.结果表明,方案1～3均难以满足大连市未来社会经济发展需求,而方案4是提高大连市水资源承载力的可行方案,该方案下模拟的2020年大连市可承载的工业总产值和城镇人口分别达9527亿元和453 8万人.     

中国生态福利绩效空间关联网络演变特征与形成机制

在定量测度生态福利绩效基础上,借助修正的引力模型和社会网络分析方法,研究了中国生态福利绩效空间关联网络演变特征与形成机制。研究发现：（1）中国生态福利绩效空间关联网络呈现“东密西疏”的空间分异规律,关联网络有“扁平化”发展趋势,网络稳定性亟待提升。（2）京津冀、长三角和珠三角处于网络核心位置,具有较强的溢出效应,东北、西北和西南地区处于边缘位置,贵州和甘肃是联系西南和西北省区的关键节点,生态福利绩效在省际间的传输多通过南部省区的中介作用实现。（3）北京、天津和上海构成净溢出板块,珠三角和江浙地区属经纪人板块,长江中下游及西南地区为净溢出板块,东北、黄河中下游及西北地区构成双向溢出板块。（4）资源禀赋差异、市场调节、政府宏观调控和科学技术推动是空间关联网络演变的主要驱动机制。研究成果可为推动生态福利绩效的跨区域协同提升提供参考依据。     

Efficiency evaluation for regional urban water use and wastewater decontamination systems in China: A DEA approach

Rapid economic growth and urbanization in China have resulted in great water consumption in recent years. China has been facing increasingly severe water shortage crisis, especially in urban areas. This paper focuses on performance analysis for regional urban water use and wastewater decontamination systems in China. To this end, a DEA-based approach is developed. In the proposed approach, the efficiency of the system is decomposed into water use efficiency and wastewater decontamination efficiency. In the wastewater decontamination sub-system, the purified wastewater (reusable water) is treated as a desirable output; while in the water use sub-system, it is incorporated as a fixed input, which cannot be decreased in the process of efficiency optimization. The efficiency of the system is defined as the average of the two sub-systems’ efficiencies. The proposed approach can find inefficiencies caused by the internal factors between sub-systems, which cannot be identified using the traditional DEA approaches. We finally apply the proposed approach to analyze the efficiencies of regional urban water use and wastewater decontamination systems in China. Based on the application results, some findings and implications for efficiency improvement of urban water management in China are achieved.