稻油鱼菇生态模式的高产原理与效果

本文通过稻油鱼菇多元农业生态模式的田间试验及数理统计分析，介绍了深沟小垄稻油鱼菇农业生态构型的田间合理布局，田间生态结构、食物链特征及增产效果，论述了这类生态田的高产稳产原理。     

云南省粮食产量影响因素的实证研究

采用实证分析的方法，以云南省为例，选取影响云南省粮食产量的8个因素（耕地面积、粮食播种面积、粮食单产、有效灌溉面积、化肥施用量、受灾面积、农业机械总动力、农村用电量），并根据这8个因素对2000-2004年的原始统计数据进行了灰色关联度分析和因子分析。经研究表明，影响云南省粮食产量的因素可以归纳为农业土地利用状况和农业现代化水平，具体体现在耕地面积、粮食播种面积、粮食单产、化肥施用量、有效灌溉面积、农业机械总动力这6个方面。根据研究结论和目前云南省粮食产量的现状，提出了解决云南省粮食安全的对策与建议。     

碳酸钙在补钙食品中的利用和开发

简要介绍了钙在机体内的吸收情况，并就碳酸钙在食品领域目前的应用及可能的开发途径进行了介绍，预测了今后碳酸钙在食品领域的发展方向。     

城市化过程中水资源可持续利用研究——以济南市为例

基于地理信息系统，建立了济南市水资源数字化图，分析了济南城市化过程中水资源开发利用状况；借助水安全指标体系探讨其存在的问题，结合可持续利用观点，提出济南市水资源合理开发利用的措施，为实现城市的可持续发展以及人口、资源、环境间的和谐发展提供科学的决策依据。     

Looking beyond food aid to livelihoods, protection and partnerships: strategies for WFP in the Darfur states

The humanitarian crisis in Darfur remains extremely serious. The optimism that followed the signing of the Abuja Peace Accord was followed by a rapid deterioration in security on the ground in part associated with increasing factionalism in various rebel movements. This paper briefly reviews the evolution of the crisis, its impact on lives and livelihoods and the response by the World Food Programme (WFP) to June 2006. The major challenges and issues facing the food aid programme in the previous 18 months included: dealing with insecurity while maintaining or even extending programme outreach; the need to link protection with assistance more explicitly; and determining the wider impact of food aid programming on the processes and institutions linked with the conflict. The paper discusses the main strategic issues facing WFP in the future such as: integrating security and protection with needs assessments and operational decisions, broadening response strategies beyond food aid and bringing livelihoods to the fore, the need to review cost-efficiency, promoting partnerships and strengthening national and regional capacities.     

An Ethical Toolkit for Food Companies: Reflections on its Use

Nowadays many debates are going on that relate to the agricultural and food sector. It looks as if present technological and organizational developments within the agricultural and food sector are badly geared to societal needs and expectations. In this article we briefly present a toolkit for moral communication within the food chain. This toolkit is developed as part of a European research project. Next, we discuss what such a toolkit can bring about, given the characteristics of the present day agricultural and food sector and its wider context. We defend that the toolkit can be seen as one of the mechanisms that can help enterprises in the agricultural and food sector to be accountable. It should, however, be complemented with other mechanisms, first, to empower the wider public and, second, to stimulate a dialogue, on a more equal footing, between public authorities, citizens, and economic actors.     

The potential of pigeonpea (Cajanus cajan (L.) Millsp.) in Africa

Pigeonpea is a tropical grain legume grown mainly in India. Though largely considered an orphan crop, pigeonpea has a huge untapped potential for improvement both in quantity and quality of production in Africa. More than any other legume adapted to the region, pigeonpea uniquely combines optimal nutritional profiles, high tolerance to environmental stresses, high biomass productivity and most nutrient and moisture contributions to the soil. The legume can be utilized in several diverse ways while the high genetic variability that exists within the cultivated and wild relatives remains to be explored for further uses. This article highlights the need for popularizing pigeonpea as a major legume crop in Africa. The main constraints to productivity are discussed and recent breeding efforts in Africa highlighted. Important opportunities for improvement are further provided.     

郑州市耕地资源安全的时空特征分析

耕地资源安全是保障我国国民经济发展的重要条件之一,又关系到我国的粮食安全。借用生物学的承载力分析方法,设定耕地资源安全测度指标,建立了耕地资源安全测度模型,对郑州市1996—2005年10年来耕地资源安全进行了测算,并分析了耕地资源的时空特征。     

开发区循环经济保障体系探讨

在分析我国目前实施循环经济所存在问题的基础上，以开发区为例提出了构建发展循环经济的保障体系，着重从组织、政策、技术、资金等方面进行了论证，为开发区按循环经济要求运行进行了探索，也为循环经济的顺利开展提供了科学依据。