特色油料作物紫苏在陕西的开发潜力与展望

近年来随着人们消费观念的改变,紫苏作为食药两用的特色油料作物在生活中发挥着重要作用,其研究与应用越来越引起学界的重视。在分析紫苏国内外研究现状和油用、药用、商业利用价值的基础上,结合陕西自身地理、生态、经济等资源条件,重点分析了陕西种植紫苏的潜力、难点与解决策略,研究在陕西如何因地制宜地开展紫苏的品种选育和栽培研究,并对今后的开发利用和市场前景进行了展望,以期为紫苏的深入研究和应用提供参考,有效促进陕西紫苏产业的发展。     

药食同源人菜来

紫苏 有特殊记忆的，当数紫苏了。打从记事起，家里的菜园子里总有几株红红的“菜”。每年就种那么几颗，红红的叶子在绿色中飘呀飘的，很是醒目。 母亲说，这叫紫苏，吃了它可以发汗治感冒。因为有了药的感觉在前，当母亲把放了紫苏的面汤端来时。那种特殊的香味让我惶恐。所以每年的紫苏都是母亲一个人自种自享，母亲说的好吃没让我们姐弟几人垂涎。我的记忆中，恐怕也唯有这个吃物是母亲喜欢而不需要留与孩儿的。     

紫苏水浸液对木香薷种子萌发和幼苗生长的化感作用CSSCI

以紫苏茎、叶、花序为供体,木香薷种子为受体,采用3×5二因素完全随机试验设计和室内生物测定法研究了紫苏水浸液对木香薷种子萌发及幼苗生长的化感作用。结果表明:1供体类型和水浸液浓度对木香薷种子的发芽势、发芽指数、发芽率、成苗率、胚根长度和胚轴长度均有极显著影响。供体化感作用强弱顺序是:叶片>花序>茎,并有高抑制低促进的浓度效应。2紫苏茎、叶、花序的水浸液主要是通过抑制木香薷胚根的伸长来抑制种子萌发与幼苗生长。3叶片淋溶是紫苏释放化感物质的主要途径之一。     

紫苏水浸液对木香薷种子萌发和幼苗生长的化感作用

以紫苏茎、叶、花序为供体,木香薷种子为受体,采用3×5二因素完全随机试验设计和室内生物测定法研究了紫苏水浸液对木香薷种子萌发及幼苗生长的化感作用。结果表明:1供体类型和水浸液浓度对木香薷种子的发芽势、发芽指数、发芽率、成苗率、胚根长度和胚轴长度均有极显著影响。供体化感作用强弱顺序是:叶片花序茎,并有高抑制低促进的浓度效应。2紫苏茎、叶、花序的水浸液主要是通过抑制木香薷胚根的伸长来抑制种子萌发与幼苗生长。3叶片淋溶是紫苏释放化感物质的主要途径之一。     

紫苏子饮料的制备方法

本方法通过浸提 ,利用紫苏子壳中的黄酮类抗氧化物、灭活脂肪氧化酶 ,热固化紫苏子仁、弱碱皂化部分脂肪油等工艺 ,解决了紫苏子中α 亚麻酸易氧化、酶解 ,紫苏子脱壳难以及饮料油腻等问题 ,使产品口味清香、质量稳定 ,富含α 亚麻酸 ,有利于调节人体生理功能。 (ＣＮ 1 2 4 99     

旅游政策：文献综述与研究展望

政策是国家意志的集中体现，反映了国家需求和导向，也渗透特定的时代价值，而旅游业高质量的发展离不开相关政策的保障和支撑。本研究对国内外旅游政策相关文献进行了梳理，归纳了专项旅游政策、旅游政策制定、旅游政策变迁、旅游政策执行、旅游政策评估、旅游政策话语等主要研究议题，证实了旅游政策是一个富有潜力且亟待构建理论框架的研究领域，丰富了旅游政策研究的知识图谱。旅游政策研究日益受到学者的关注，取得了丰硕的研究成果，研究视野更加开阔，研究方法趋向于多样，交叉学科开始起步。但是，尚未形成统一的理论框架体系，旅游政策的研究方法和理论不够丰富，旅游政策变迁规律和形成机制尚不清晰，文旅融合政策研究成果较为匮乏，缺乏中国情境下旅游政策研究。从强化旅游政策情境化、拓展旅游政策过程执行、关注旅游政策评估体系、完善旅游政策创新发展、推进旅游政策交叉学科研究等方面提出未来研究框架。     

乡村生态振兴研究的文献计量分析

文章通过绘制科学知识图谱，系统梳理了乡村生态振兴研究的热点主题，在研究过程中综合运用了文献可视化分析工具CiteSpace和关键词分析工具，对收录于中国知网数据库的乡村生态振兴的相关文献进行分析。研究发现，核心研究议题包括农村环境污染的根源与治理研究、农村生态环境补偿与绿色发展研究、乡村生态旅游与可持续发展研究、乡村环境治理研究等。乡村生态振兴的理论研究需要加强学术交流、完善合作谱系，拓宽学术视野、建立议题关联，立足中国情景、凝练本土理论。     

国外事件及事件旅游研究进展与启示

通过检索近年来的相关期刊，同时参考相关专著，从研究内容和研究方法两个方面分别进行分析，认为事件旅游的体验、动机、规划与管理、影响、模式与进程是当前事件旅游研究的主要内容，研究方法主要表现为结合具体案例的描述性分析和统计抽样分析。结果宏观地反映了近些年来国外事件旅游研究的现状，提出了事件旅游研究的未来趋势。     

国内旅游空间结构研究进展

对国内期刊2000年以来刊载的有关旅游空间结构的152篇文献进行统计、分类和总结。结果发现：国内旅游空间结构的研究主要集中于基础理论研究，旅游空间组织形态研究，旅游空间结构模式、演化与优化研究，旅游流空间结构研究，旅游空间相互作用研究，旅游空间结构影响研究，旅游空间发展战略研究和其他研究等方面。指出了当前研究中存在的问题。     

旅游地客源市场研究的回顾与展望

客源市场是旅游业赖以生存和发展的关键因素，也是旅游业发展竞争的焦点。阐述了国内外关于客源市场的研究，并从时间、内容、方法上比较了国内外研究的异同，最后就旅游地客源市场研究的新趋势提出几点意见。     

药食保健野菜——苋菜的开发利用

苋菜是一种具有较高利用价值的药食两用蔬菜,对其进行开发利用已成为国内外医疗保健、食品、化工领域的研究热点。介绍了苋菜的识别特征、固有营养价值、保健作用、微量元素与食疗原理,提出了苋菜资源的开发利用方向。     

Consumer Perceptions About Local Food in New Zealand,and the Role of Life Cycle-Based Environmental Sustainability

Local food is a popular subject among consumers, as well as food producers, distributors, policymakers and researchers in many countries. Previous research has identified that the definition of local food varies by context, and from country to country. The literature also suggested that environmental sustainability is one of the goals for many of the local food movements. While there is a substantial body of literature on local food internationally, limited research has been undertaken in New Zealand. This paper aims to understand how consumers define local food, what attributes they associate with local food, and the extent to which life cycle-based environmental aspects are represented in these attributes. Primary research employed quantitative methodology. This study identified that a majority of the respondents considered that local food may be defined as food that was produced in New Zealand and that support for community was the most important attribute associated with local food. Reduced GHG emission, conserving the landscape, and organic production were the life cycle-based environmental attributes that were associated with local food. This study provides a basis for further research into understandings of local food in New Zealand and how to improve communication among different social actors with respect to demand and supply of local food.     

酸性条件下厌氧颗粒污泥活性抑制与恢复试验研究

取食品生产废水处理中试工程运行中现有的厌氧颗粒污泥进行活性抑制与恢复试验。通过慢性致毒与急性致毒作用的对比,分析酸性条件对颗粒污泥的抑制作用,研究颗粒污泥的耐酸性,并考察污泥活性恢复方法。结果表明:当进水pH=6.5,颗粒污泥活性受到轻微抑制,不影响系统的稳定运行;当pH值下降至4.5时,COD去除率和产甲烷量均趋于零。同时使用调节进水pH值、降低进水有机负荷、提高进水碱度以及调整水力停留时间等4种方法能有效恢复污泥活性,活性达到抑制前的80%左右。     

攀西地区野生番石榴资源的开发利用

根据对四川省攀西地区野生番石榴资源的调查研究,本文论述了野生番石榴的生物学特征和分布、食用和药用价值、产量和经济效益等,并提出了开发利用和保护野生番石榴资源的建议     

Food justice youth development: using Photovoice to study urban school food systems*

How do youth learn through participation in efforts to study and change the school food system? Through our participatory youth action research (YPAR) project, we move beyond the “youth as consumer” frame to a food justice youth development (FJYD) approach. We track how a group of youth learned about food and the public policy process through their efforts to transform their own school food systems by conducting a participatory evaluation of farm-to-school efforts in collaboration with university and community partners. We used the Photovoice research method, placing cameras in the hands of young people so that they themselves could document and discuss their concerns and perspectives. The research was designed to gain insight about youths’ knowledge of food, health, and community food systems. Drawing upon the youth group’s insights, we build a framework for building critical consciousness through FJYD.     

白腐真菌生化降解TNT的研究

本文在建立微生物降解废水中有机污染物的中间反应模型的基础上,推导出ＴＮＴ废水的ＣＯＤ降解参数方程,并与实测值比较,基本吻合,为以后深入研究提供理论指导。     

基于能值分析的山区县域经济可持续发展评价——以吉林省抚松县为例

选取吉林省抚松县为研究区域，采用能值分析方法，从生态安全、经济发展、社会接受方面建立评价指标体系，对吉林省抚松县生态经济系统进行定量和定性评价。研究结果表明：①2005--2009年抚松县生态经济系统能值投入量和能值产出量均呈增加态势，能值投入以本地资源为主，工业产值迅速增加（以林产品为主），而农产品产值持续减少。②抚松县经济发展水平在全国、全省范围内均属于较低水平，工业发展效率很低，居民生活质量不高。③生态环境压力逐年增大，主要原因是自然资源的大规模开发，但是与其他发达地区、我国西部地区相比，抚松县在生态环境承载力方面仍具有相对优势。据此，提出了通过大力发展旅游产业、绿色食品、林产品的深加工等增强系统开放性，深入挖掘优势资源的高价值形态，以达到山区县域经济的可持续发展。     

Measuring sustainability performance of local food production in home gardens

The growing interests in “local food” in recent years in public discussions, research and practice highlight its significant importance as a part of overall food system. This research compares spatially local food production potential of home gardens in nine residential neighbourhood case studies with varying physical densities at a local scale using geographic information systems and mathematical methods. This paper develops a “local food energy model” for measuring sustainability potential of growing local food mainly vegetables in the home gardens. The outcomes indicate that potential of the home gardens in supplying vegetables demand as a share of total dietary energy would depend on the morphological characteristics of urban forms, total resident population, total food demand and other related factors. Local food production in the home gardens could meaningfully contribute towards building a sustainable food future.     

Effects of Land Use Changes on the Ecosystem Service Values of a Reclamation Farm in Northeast China

Intensive agricultural development can change land use, which can further affect regional ecosystem services and functions. With the rapid growth of the population and the national demand for food, the northeast of China, which is located in the high latitudes, has experienced four agricultural developments since the 1950s. The original wetlands of this area were developed for farmland. The evaluation of ecosystem services is conducted to reveal the ecosystem status and variable trends caused by land reclamation. The aim of this study is to provide scientific basis for environmental management and for the sustainable development of agriculture in Northeast China. With GIS-RS technology, a typical farm was chosen to analyze variations in the ecosystem service value in response to land use changes during the study period. The total ecosystem service value of the farm decreased from 7523.10 million Yuan in 1979 to 4023.59 million Yuan in 2009 with an annual rate of ?1.6?% due to the decreasing areas of woodland and wetland. The increased areas of cropland, water area and grassland partly offset the loss of the total value, but the loss was still greater than the compensation. Waste treatment and climate regulation were the top two service functions with high service values, contributing to approximately 50?% of the total service value. The spatial difference of the ecosystem service value also was analyzed. The wetlands located in the central and northeastern sections of the farm changed significantly. From the aspect of ecosystem service value, the wetland and water area should be conserved, as they have the highest value coefficients. The accuracy of the value coefficient, however, needs to be studied further in future research.     

Gifting,ridding and the “everyday mundane”: the role of class and privilege in food waste generation in Indonesia

Current research on household food waste has not considered the impact of the inter-class power dynamics between employers and domestic helpers on food waste management and generation in the Global South. This article focuses on the issue of food justice and will demonstrate that it is important to reconsider household food practices within the framework of unequal power dynamics in household units – especially between employers and their domestic helpers. Informed by food waste regime conceptual framework, this paper will examine the complex food provisioning practices of Indonesian households. The research draws on 21 in-depth interviews with households of varying incomes, multiple site visits, participant observation and going along on grocery trips to better understand the power dynamics and practices that result in, or prevent the generation of household food waste. In addition, 12 key informant interviews with government officials, traditional food vendors, supermarket managers, and a waste collector was also conducted. In an Indonesian context, understanding the interclass dynamics of the household, namely, who gets to define what is “food” and what is “waste” is key to understanding the broader phenomenon of food waste in order to promote solutions to food waste prevention and food insecurity that is socially and environmentally just.