长江流域新世纪可持续发展的重大问题

长江流域占全国面积的15.5%,它所拥有的水、土、生物、矿产等整体资源优势和雄厚的社会、经济基础,成为我国经济的驱动轴。然而,随着人口的不断增加和经济的高速增长,流域人地关系日趋紧张,影响着长江流域资源和环境优势的发挥。文章分析了长江流域发展形势及其在全国的地位,指出:人口压力增大、资源安全不容忽视、生态环境恶化、经济效益下降以及整体性差等成为长江流域可持续发展面临的主要问题;控制人口增长、保持适速经济增长、建立资源节约型和“绿色化”的国民经济体系、建立流域生态补偿机制和管理模式以及对长远性问题坚持科学研究是实现长江流域可持续发展的关键所在。     

长江流域板块结构分异的制度成因与区域空间结构的重组

本文认为长江流域区域板块结构的形成与分异是各地区不同程度的市场化进程对区域空间结构产生非对称影响的结果。并论证了制度的创新与协调将有助于区域板块常规动力的耦合与外生动力的内在化。为促使长江流域区域的板块融合，应结合不同层次城市区域的空间结构特征和重组驱动力．制定与技术变革和全球化现实背景相适应的、以产业空间与城市空间相协同为目标、以区域治理体制为保障的空间结构政策。     

Pacific Basin stock markets and international capital asset pricing

In this paper, we follow Harvey (1991) to investigate whether rates of return on Pacific Basin stock markets can be explained by conditional version of International Capital Asset Pricing Model (ICAPM), which allows for time-varying expected returns, variances, and covariances. The results show that most individual Pacific Basin markets can be described by the conditional ICAPM. However, the multiple markets' tests do not support the conditional ICAPM formulation, and the estimates of world reward to risk ratio are not the same across these markets. Furthermore, the Ghysels and Hall test (Ghysels & Hall, 1990a, 1990b) shows that the estimates of parameter are also unstable in the conditional ICAPM formulation. This implies that it is difficult to use world return to describe the relationship between expected return and risk for the Pacific Basin stock markets.     

Optimisation of water procurement decisions in an irrigation district: the role of option contracts

Water supply instability is one of the main risks faced by irrigation districts and farmers. Water procurement decision optimisation is essential in order to increase supply reliability and reduce costs. Water markets, such as spot purchases or water supply option contracts, can make this decision process more flexible. We analyse the potential interest in an option contract for an irrigation district that has access to several water sources. We apply a stochastic recursive mathematical programming model to simulate the water procurement decisions of an irrigation district's board operating in a context of water supply uncertainty in south‐eastern Spain. We analyse what role different option contracts could play in securing its water supply. Results suggest that the irrigation district would be willing to accept the proposed option contract in most cases subject to realistic values of the option contract financial terms. Of nine different water sources, desalination and the option contract are the main substitutes, where the use of either depends on the contract parameters. The contract premium and optioned volume are the variables that have a greater impact on the irrigation district's decisions.     

Fifty years of finance research in the Asia Pacific Basin

In this paper, we review the history of scholarly finance research in the Asia Pacific Basin. We do this by analysing the four leading regional finance journals – Accounting and Finance, Australian Journal of Management, International Review of Finance and the Pacific‐Basin Finance Journal – along five dimensions. The five dimensions are the most cited papers, noted authors, impact in terms of practice, research areas and a breakdown in terms of the development of the field according to Kuhnian concepts of normal science, anomalies and extraordinary science. We show that the Asia Pacific journals make a crucial contribution to research and practice both in the region and internationally.     

基于污染指数法的太湖流域水污染治理效果分析

太湖流域水污染治理对我国水环境改善和生态文明建设具有重要的示范作用。为有效掌握太湖流域的水污染情况,以高锰酸盐、氨氮、总磷、总氮等为指标,对2005~2012年太湖流域水质变化趋势及变化原因进行了分析,并通过构建污染指数法对太湖流域水质的污染情况进行了评价。研究结果表明:经过治理,太湖流域水质确实得到改善,但仍然处于重污染范畴,而且水质改善速度缓慢。最后,针对太湖流域水污染现状,提出了相应的污染防治建议。     

川中丘陵农地生态建设研究

从生态学角度研究了川中丘陵农地利用中存在的生态环境问题，认为实施生态建设是川中丘陵农地持续利用的重要途径。提出了进行生态建设的思路。     

江苏省太湖流域农村生活污水治理资金保障研究

农村生活污水治理滞后的主要原因是生活污水收集系统和净化设施建设、运营的资金得不到保障。利用已建成并投入运营项目的相关数据,结合江苏省太湖流域农村人口的现状分布,初步估算农村生活污水治理率达到70%的情景下,污水处理设施建设的资金需求,以及设施全部建成后每年的运营和监管费用,分析资金缺口的解决方案,并提出资金保障的政策建议。     

基于水资源可持续利用的塔里木河流域农业水价管理研究

基于未来塔里木河流域农业水价管理的目标、特征和基本原则,提出塔里木河流域农业水价的管理制度和基本政策建议,以及相关配套管理制度和政策与组织机构建设问题,旨在为塔里木河流域农业水价调整、执行、征收、使用和组织管理等提供借鉴。     

淮河流域农业干旱对粮食产量的影响分析

干旱是制约我国粮食生产的主要因素,严重影响了农产品的生产和粮食安全。以受干旱影响程度较重的淮河流域为研究对象,通过对历史旱情资料的统计分析表明：流域农业干旱灾情随年代的发展逐渐加重,且不同行政区域之间存在较大差异。利用相关数据实证检验了1999～2008年间流域内农业干旱灾害对粮食生产的影响。结果表明,农业干旱灾害对粮食生产具有明显的影响,并提出了相应的政策建议。该分析结果可为淮河流域农业防灾减灾体系建设和粮食安全提供些许的参考和借鉴。