食用菌液体菌种培养技术研究

本研究在相同培养生长条件下，对固、液体菌种的培养；液体菌种的连续培养技术，进行了初步对比实验研究。研究表明：食用菌菌种培养生产过程中，采用类似生物液体深层发酵技术培养菌种，可以大大缩短生产周期，适于工厂化大规模生产。     

阴那山的几种珍稀濒危植物

本文对阴那山几种珍稀濒危植物的种类、数量、分布作了介绍并对如何拯救和保护提出了建议     

“纯诗”：一种艺术美的极致追求

“纯诗”是象征主义的诗学命题,它的艺术目标是创造一个不被任何现实因素干扰的纯粹的诗意世界。为了这个目标。象征主义诗人通过研究词语关系和诗的非语言形式,对艺术的可能性进行元思考。他们将音乐性视为诗的本体构成,力图建立声音象征体系。他们深信“灵”与“物”是相通的,万物有灵的思维方式,最能表达“纯诗”所要揭示的艺术表象与思想之间的亲缘关系。“纯诗”的艺术目标,实际上体现为一种对艺术美的极致追求。     

Elymus sibiricus, E. nutans 和 E. burchan-buddae 的形态学鉴定及其染色体组亲缘关系的研究

为了进一步研究Elymus sibiricus L.、E．nutans Griseb．和E．burchan-buddae(Neuski)Tzelev [＝Roegneria nutans(Keng)Keng]的外部形态差异及其系统学关系，本文对这三种植物的6个穗部形 态性状进行了观测和比较，并对这三个Elymus种进行了种间杂交及杂种F1的减数分裂染色体配对行 为的分析研究。结果表明：这三个Elymus种的穗长及颖长等性状均变异很大，而内稃的长、宽则变异 不大并具有明显的种间差异。E. nutans×E．barchan-buddae及E.nutans×E．sibiricus的杂种F1均完 全不育，减数分裂不规则。E．nutans×E．burchan-buddae杂种F1的减数分裂构型为：7.70I+13.40 Ⅱ+0.06Ⅲ+O.08 Ⅳ，而E．sibiricus×E．nutans杂种F1的构型为11.98 Ⅰ+9.61Ⅱ+O.64Ⅲ+0.39 Ⅳ+0.01V。由本实验的形态学和细胞学的研究结果得出以下结论：1．利用内稃形态性状结合穗部 其它性状的差异能对这三个物种进行较准确的鉴定；2．E．nutans与E.burchan-buddae的亲缘关系较 近，而E．nutans与E．sibiricus的亲缘关系则较远；3. E，burchan-buddae×E．nutans的杂种Fl中存在着染色体配对控制因子。     

龙岩中心城市行道树生长调查及应用研究

在龙岩中心城市行道树的树种种类、数量、规格及生长量实地调查的基础上,对14种主要行道树进行生长量分析比较,综合评价它们的适宜性,结果表明大叶榕、菩提、天竺桂等三种适宜性为优秀,樟树、石栗、洋紫荆、海枣、盆架木、黄花槐、桃花心木、木棉等八种适宜性为良好。为龙岩中心城市行道树种的选择提供依据。     

Antioch's Glen Helen

Abstract

The authors constructed a 32-item survey instrument to measure knowledge and aspects of attitudes (issue understanding and concern, locus of control, and verbal commitment) regarding sea turtle conservation on Zakynthos, Greece. It was completed by 332 5th and 6th grade students from 21 classes in 3 geographic settings. The results indicate low knowledge scores, but high score levels for attitudes. Knowledge, understanding and/or concern, and locus of control significantly correlated with grade level. Overall, a significant positive correlation between knowledge and attitudes was demonstrated. The findings of the study may be useful in designing environmental education programs to promote sea turtle conservation.     

The impact of on-site educational outreach on recreational users’ perceptions of aquatic invasive species and their management

Aquatic invasive species (AIS) present a great challenge to ecosystems around the globe, and controlling AIS becomes increasingly difficult when the potential vectors are related to recreational activities. An approach combining education and outreach efforts to control AIS may be the best course of action. A survey was designed to measure public perceptions, knowledge of, and attitudes towards AIS, as well as public support for various management actions. Surveys were administered during the summer of 2013 at two boat launches where one launch had active outreach the previous summer and one that did not. A total of 400 surveys were completed with a response rate of 89%. There was support for most proposed management options, and respondents understood the urgency of managing AIS. There was a difference between the launches in how people responded, highlighting that educational programming may need to be tailored for specific recreational uses and recreational settings.     

高邮市家鹅球虫种类的调查与鉴定

采用卵囊形态结构特征观察与回归动物试验相结合的方法,对江苏省高邮市家鹅感染球虫的种类进行了调查与鉴定.共查16个鹅群,球虫阳性16群,阳性率为100%.共检到1科2属6种球虫,其中艾美耳属(Eimeria)5种:鹅艾美耳球虫(E.anseris)、棕黄艾美耳球虫(E.fulva)、赫曼艾美耳球虫(E.her-mani)、有害艾美耳球虫(E.nocens)和多斑艾美耳球虫(E.stigmosa);泰泽属(Tyzzeria)1种:稍小泰泽球虫(T. parvula).稍小泰泽球虫检出率最高(100%,16/16),其次是赫氏艾美耳球虫(50.0%,8/16),为本次调查的优势种.     

Stress,Oxidative Injury and Disease

The living system on earth is largely using oxygen for burning metabolic fuel for energy. The toxicity of oxygen is largely due to the formation of free radicals in living systems. Stress is also responsible for the generation of free radicals. The evidence for the involvement of free radicals and oxidative injury in producing metabolic disturbance, maladjustment and many diseases has been accumulating since long. It is largely believed that the root cause of many chronic diseases is stress induced free radicals and resultant oxidative injury.     

农林外来有害生物红火蚁入侵的问题建构与社会管理研究

红火蚁是中国主要外来入侵物种,也是世界自然保护联盟收录的最具破坏力的入侵生物之一,它是一种危害农业生产、影响人民生活和旅游贸易的检疫性有害生物。利用环境社会学的问题建构理论,分析红火蚁入侵问题的发生机理,从媒体传播方式、红火蚁危害性、环境主张等方面,论证红火蚁入侵问题的建构过程;从自然科学与社会科学两方面,探讨相关问题的防范措施和社会管理机制。