江西百合病害调查与鉴定

根据１９９０～１９９６年的系统调查和鉴定研究，明确了江西百合病害有２６种，其中真菌病害１６种，细菌性病害３种，病毒病害２种，线虫病害１种，生理性病害３种，病因未明的１种。本文描述了２６种病害的症状、病原物、发生及分布情况。     

上海市园林绿地共生固氮植物资源调查

对上海市固氮植物的结瘤状况和固氮效果进行调查分析,采集根瘤寄主分属5科37属,共83种,其中非豆科植物有4科4属12种,豆科植物33属71种。结果表明,有93%的根瘤着生于寄主侧根,大小一般在1～10mm。形状以球形、近球形、柱形为主,颜色多为白色、黄褐色。固氮酶活性为0～10μmol/(g.h)。     

Mapping the territory: agroforestry awareness among Washington State land managers

There is growing interest in research to develop potential agroforestry models for temperate climates. In Washington State, recent studies and anecdotal information suggest that agroforestry is already employed by land managers, and if so, this experience should inform future research efforts. Because this population is not well defined, a mail survey was designed to: 1) Assess Washington land manager awareness of agroforestry, 2) assess perceptions of agroforestry as a land management tool, 3) assess the perceived potential opportunities or obstacles for land managers to practice agroforestry, and 4) identify landowner groups believed to be practicing agroforestry in Washington State.Three groups of land managers were surveyed: employees of the Soil Conservation Service (SCS), Washington State University Cooperative Extension Service (WSUCE) and OTHER, consisting of university faculty, private land managers, State and Federal land managers and owners of small natural resource businesses.Agroforestry was not a new concept for most (94%) respondents, further 55% of those familiar with agroforestry were practicing agroforestry or providing advice to landowners who were practicing agroforestry. Use in (government mandated) soil conservation plans on farmland (100% of all respondents) was the most frequently cited potential application for agroforestry in the state followed by range and pasture land and managing non-commercial forest land (both 84%), use on commercial forest plantation (83%) and fruit and nut orchards (61%).Diversifies land use (25%), enhanced productivity (18%), aesthetics (13%) and income diversity (13%) were the four most frequently cited potential advantages to practicing agroforestry. Lack of information (28%), lack of technical assistance (18%), establishment costs (14%) and not an established practice (14%) were the most frequently identified potential obstacles to practicing agroforestry. Respondents suggested there is great potential for application of agroforestry throughout the state, and non-industrial private forest land owners were selected for future study of this potential.     

互联网专车服务对出租车行业垄断的影响

通过数学建模方法可知,由于出租车公司和政府部门追求垄断利润,出租车司机和消费者的福利减少,因此,对消费者和司机来说,出租车行业垄断确实是一种伤害.互联网专车服务以低廉的价格和优质的服务,是打破出租车行业垄断的有力工具.从模型分析揭示的结果可知：传统的出租车行业必须对司机、消费者、公司和政府间的利润分配制度进行深层次的改革.只有这样,才能建立一个和谐的出租车服务体系.     

基于快速幂法子空间跟踪的低频振荡辨识方法

基于中国农村1986~2010年的时间序列数据,采用状态空间模型和中介效应分析方法检验并测算了农村金融发展对农村贫困的影响效应及其成分。研究结果表明：农村金融发展有效促进了农村贫困缓减,并且在促进农村贫困缓减的过程中中介效应与直接效应并存。     

广东省农村食品安全现状调查与思考

调查了省内10余个农村集镇及其周边的自然村落的食品安全现状,调查发现造成农村食品安全问题的主要原因有:农村居民安全意识淡薄、居民对水源的关注度欠缺、农贸市场的发展规划不当、食品安全源头污染严重、农村食品的贮藏、运输条件欠佳等.分析了上述原因,总结出改善当前食品安全现状的措施及建议,主要是在加强食品安全法律、法规和标准体系的建设,提高农民的食品安全意识,加大对农村的财政投入等方面着手.     

渭城区农机合作社土地规模经营情况的调研报告

通过调研全区农机合作社土地规模经营情况,分析现存的问题和制约瓶颈,针对工作问题和不足提出发展建议。     

农作物病虫害地面调查前端系统的设计与实现

农作物病虫害地面调查前端系统是对长期田间观察和调查数据维护的重要工具。讨论了系统设计的基本思路，以及给出系统的结构和功能设计和网络环境下的实现方法，对推动农作物病虫害地面调查数据的信息化管理有积极的意义。     

四川省岳池县药用植物资源调查

结合全国第4次中药资源普查,通过开展野外实地样方调查,引进遥感、地理信息和卫星定位技术,同时运用计算机数据库等现代技术,与采集标本、拍摄实物、专家鉴定相结合,对岳池县药用植物资源的种类、分布状况进行了调查。结果表明,岳池县普查共记录药用植物物种208种,分属82科176属;其中菊科最多,为25种,最大的属为蓼属,有10种;野生药用植物165种,栽培药用植物43种。岳池县中药资源丰富,应充分利用当地药用植物资源特色优势,开发新的现代药物制剂,促进中药产业可持续发展。