新媒体时代科普工作原则--基于CAS理论视角

简述了新媒体和复杂自适应系统（CAS）理论的相关概念,辨析了传统科普和新媒体时代科普的不同,指出了新媒体时代的科普系统是CAS ,提出了用CAS理论指导新媒体时代科普工作的几点原则。     

动物医学临床教学数据库的构建与初步应用

动物医学专业不仅要求学生掌握扎实的理论知识,还需要具有丰富的临床实践经验。为了实现该目标,除了要求授课教师对专业知识融会贯通,更需要拥有大量典型的临床病例资料。以安徽农业大学动物医院和畜禽疾病诊断中心为平台,收集大量宝贵的临床病例资料和最新的临床诊疗技术,构建了动物医学临床教学数据库,使得诊疗动物种类多样化,案例信息全面化、系统化。该数据库的建成和应用,为临床教师提供了丰富的教学素材和资料,亦提升了学生的学习兴趣,促进了动物医学专业的教育教学发展。     

Spatiotemporal dynamics of plant diversity in response to farmers’ evolved settlements in Shanghai

The expansion of the Shanghai metropolitan region has caused a substantial amount of farmland to become urbanized. Most farmers have lost their land and have been relocated from villages to new collective settlements, resulting in dramatic changes in the landscape pattern. This study explores the effects of this transformation on the spatiotemporal dynamics of plant diversity. We randomly sampled 22 plots comprising 294 subplots within two crossed transects that pass through 5 traditional villages and 17 new settlements. The results show that resettlement has exerted significant effects on plant species diversity, both temporally and spatially. Temporally, the Gleason index (GI) of total species over time could be ordered as 1990s > 2000s > 1980s, while Shannon’s diversity index (SHDI) was ordered as 2000s > 1990s > 1980s. Spatially, the GI of total species decreased from the urban center to the exurbs or from the inside to the outside of the built-up areas. SHDI was highest in suburbs or ecotones. Furthermore, the GI of total species had significant correlations with those of indigenous species, exotic species, and planted species (r > 0.90, p < 0.01) as well as with the region and location of settlement (r < −0.48, p < 0.01). Both indigenous and exotic species had significant positive correlations with total species richness at 0.01 levels. Generally, compared with traditional settlements, new settlements displayed greater richness and diversity of plant species, primarily because of the exotic species present in new settlements. The farmers’ socio-economic status was found to be the primary cause of differences in species richness. To protect indigenous and wild species, it is necessary to take into account local knowledge in villages to encourage Chinese farmers to participate actively in community greening. A bridge should be built between traditional villages and modern settlements and between the past and future for farmers.     

新农村建设背景下农村义务教育的困境与出路——以广东省惠东县上村村为例

以广东省惠东县上村村的义务教育情况作为研究对象,分析了新农村建设背景下农村义务教育存在的问题与出路。     

经络穴位给药系统在兽医临床上的应用

经络穴位给药系统以中医经络理论为基础,具有经穴效应和药物效应的双重治疗特性,已广泛应用于兽医临床.目前,兽医临床上常用穴位给药方式是穴位埋植和穴位注射,而常用穴位主要是后海穴、百会穴、肺龠穴.随着经络穴位给药系统的广泛应用,新型经络穴位给药制剂和经络穴位给药作用机理已成为经络穴位给药系统研究的重点.     

早熟薄皮甜瓜新品种香瑞1号的选育

香瑞1号是黑龙江省青冈县瑞雪农业有限责任公司以NY-99为父本、RX-99为母本选育的早熟薄皮甜瓜新品种.全生育期68d,果实发育期27 d.子、孙蔓均可结瓜.果实长圆形,果皮黄白色,果实大小整齐,外形美观,不裂果;中心可溶性固形物14%,品质优.单果质量500～600g,667m2产量3 500 kg左右.田间表现对...     

新型肥料与沼液替代在农业生产中的应用

随着现代农业的发展和农业生产技术的进步，通过探索新型肥料研发与推广、种养循环有机替代、农业生产水肥耦合运筹等新技术新模式，在保障作物稳产增产前提下,实现了减少农业生产投入、降低生产成本、提高生态效益的目标。本文介绍了新型肥料的研发推广和沼液替代化肥研究进展，归纳了新型肥料与沼液替代化肥技术效果，为优化施肥技术的应用提供参考。     

新式墙面绿化在广州和深圳的应用研究

新式墙面绿化对日益缩减的城市绿化环境至关重要,通过实地调查广州和深圳30个新式墙面绿化场所,分析其种植形式、植物种类、植物配置与景观效果,总结出深圳和广州新式墙面绿化的植物应用现状和景观效果,并讨论其发展前景。     

Selection,mechanism, cross resistance and stability of spinosad resistance in Spodoptera litura (Fabricius) (Lepidoptera: Noctuidae)

Spodoptera litura is one of the most destructive pests in Pakistan and in many other regions of the world. A field collected population of S. litura was selected with spinosad for eleven generations under controlled laboratory conditions to study the cross resistance, mechanism and stability of spinosad resistance in S. litura. The resistance to spinosad in S. litura increased 3921-fold (after eleven generations of selection with spinosad) as compared to a susceptible population of S. litura. No cross resistance between spinosad and emamectin benzoate, methoxyfenozide, fipronil, indoxacarb, profenofos, lufenuron or deltamethrin was found in the spinosad-selected population of S. litura. To find the possible mechanism of spinosad resistance in S. litura two synergists, Piperonyl butoxide (PBO), S, S, S-tributyl phosphorotrithioate (DEF) were tested on the susceptible and resistant strains and on the un-selected field population. The values of the synergism ratios of PBO and DEF were 2.33 and 1.06 for the spinosad-selected strain, 1.36 and 1.06 for the un-selected field population and 1.14 and 1.00 for the susceptible strain, respectively. As high PBO ratio indicates the role of microsomal O-demethylase in causing spinosad resistance in S. litura. The spinosad-resistant and field populations of S. litura were reared without any selection pressure from the 12th to the 16th generation (G₁₂–G₁₆). The spinosad resistance decreased from 3921 to 678-fold in the spinosad-resistant population and from 31.1 to 15.1-fold in the un-selected population of S. litura as compared to the susceptible strain. Spinosad resistance in S. litura has a high reversion rate (−0.15) which indicates that spinosad resistance in S. litura is unstable and can be easily managed by switching off the selection pressure for a few generations or alternating with insecticides having different modes of action.     

浙江省藓类植物新记录种--弯叶白发藓（Leucobryum aduncum）（Leucobryaceae，Bryophyta）

发现并证实采自浙江江庆元县百山祖桥陌村的白发藓属为弯叶白发藓(Leucobryum aduncum Dozy et Molk),它是浙江省一新分布记录。提供了该种详细的形态特征描述、图形态特征图版以及生境特点,讨论了该种与其他分布于浙江的白发藓属植物的形态区别,并提供了分布于浙江的白发藓属植物的检索表。弯叶白发藓的发现是对浙江藓类植物区系的补充。