Integrated rice-fish culture: Coupled production saves resources

Rice is a key component in global food security, as it is the main ingredient in the daily diets of around 3 billion people, especially in Asia. Like all agricultural production, rice cultivation depends on scarce natural resources. This article briefly outlines the utilization of land and water in rice production, and suggests an approach for optimizing use efficiency, namely through the combination of rice and fish culture. The authors argue that the utilization of land and fresh water is optimized through integrated and complementary production of rice and fish — two basic foods items in daily local diets. The article reviews currently available scientific literature on integrated rice‐fish systems. Rice‐fish culture systems are briefly characterized, and respective yield potential and interactions between rice and fish are discussed. Results of socio‐economic surveys regarding the adoption of integrated rice‐fish culture are summarized. The article also reviews literature on the impact of fish culture on rice field ecology as outlined in studies on weed infestation, insect populations, and greenhouse gas emissions. The article concludes that rice‐fish culture can be an option to help rice producing countries keep pace with soaring domestic demand for food, especially fish. Integrated rice and fish culture optimizes the benefits of scarce land and water resources through complementary use, and exploits the synergies between fish and plant.     

抓技改 促安全 美环境

叙述了福建福人木业有限公司从国外引进的5条生产线在生产过程中遇到的安全问题和环境污染问题，通过强化企业管理，依靠科技进步，抓好设备的技改和技术的创新，确保了安全生产，整治了污染源，绿化和美化了环境，实现了企业园林式的现代生产模式。     

推行定置管理促进安全文明生产

定置管理是优化生产现场为研究对象。研究生产要素中人、物、场所的状况以及三者在生产活动中的相互关系。使人、物、场所处于最佳结合状态。定置管理不仅有效地促进了厂区的文明化，强化了运输处的现场综合治理，同时，也推动了运输处广大职工的精神文明建设。提高了广大职工安全生产意识，它已成为运输处企业管理的一项基础性工作，同时，也保证了文明生产和安全生产。     

煤炭企业清洁生产的中/高费方案评述

简述了煤炭企业在清洁生产审核过程中如何产生中／高费方案，分析了中／高费方案所占的比例。通过3个工程实例的分析证明，中／高费方案的实施给煤炭企业带来良好的环境效益和经济效益。     

Electricity price and Southern California’s water supply options

This paper evaluates the impact of fluctuating electricity prices on the cost of five options to increase the water supply to urban areas in Southern California—new surface storage, water purchases, desalination, wastewater recycling, and conservation.We show that the price of electricity required to produce and transport water influences the cost of water supply options and may alter the decision makers economic ranking of these options. When electricity prices are low, water purchase is the cost effective option. When prices exceed US$ 86/MWh, conservation of electricity and water through installation of high efficiency clothes washers is the most effective option.     

安钢推行清洁生产的几点措施

在指出转变观念的基础上,介绍了安钢“九五”以来发展过程中推行清洁生产的主要举措;并通过“九五”末和2002年能耗与环保指标对比,说明清洁生产的经济性、科学性。进而提出大力推行清洁生产是企业生存发展的必然选择。     

我国黄土高原地区农业生产的气候脆弱性变化预测

在生态脆弱的黄土高原地区,农业生产受到气候变化的影响波动很大。本文在介绍脆弱性的有关定义和农业生产的气候脆弱性评估方案的基础上,对1997年的脆弱性状况做了初步评估,并利用有关GCM预测结果,估算了有关灾害指标的可能变化,对未来黄土高原地区农业生产的气候脆弱性可能变化进行了预测,其评估方法和预测结果可为有关部门决策提供一定的科学依据。     

黄河三角洲农业开发与可持续发展研究

本文分析了黄河三角洲农业开发的有利条件、开发现状和存在的主要问题,探讨了农业生产的合理布局,提出了农业可持续发展的对策．     

江苏省环境系统特点及环境污染状况

江苏省自然特点为单一而脆弱,表面为平原为主,水域面积较大,山地少,森林覆盖率低,生物种类少,江苏省社会环境特点为人均资源少,经济基础好,交通发达,城市密集和人才优势明显;江苏省的废气,废水,固体,噪声污染日益严重。由于上述特点和原因,江苏省农业机械化,现代化程度较高,水产养殖业发达,但应进一步提高农业集约化程度和大力推广生态农业整治环境污染,利用天在河道进一步发展养殖业;江苏省工业轻,重并举以轻为     

长江流域粮食生产态势与潜力

通过大量的资料分析了长江流域在进入９０年代后的粮食生产的消费态势。粮食生产过程中存在的主要问题,及其对讹诈 影响,资料分析表明,长流域七省一市的粮食生产表现为,粮食单产略有提高,粮食总产徘徊,粮食消费量与居民的经济收入密切相关。