小城镇居住区环境的生态补偿设计研讨

针对小城镇居住区环境的现状，从生态学的角度提出改善种植质量、选择适宜的树种和合理的施工与管理方法、增加空间变化等方面进行了生态补偿设计方法的探讨，同时对加强居住区生态文化的建设、提高居民的意识等方面提出了一些合理化建议。     

陕西省农业投资环境研究

从农业产业基础、耕地资源条件、资本投资能力、生产资料投入4方面构建陕西省农业投资环境评价指标体系,据此对陕西农业投资环境进行评估并提出改善建议。     

泛在知识环境下高校图书馆学科服务创新研究

泛在知识环境下高校图书馆学科服务的理念、内容和模式都出现了一系列新变化。在对全新的服务理念和服务内容进行分析的基础上,提出图书馆应该建立与此相适应的团队协作、互动协同新模式。     

泛在知识环境下高校图书馆学科服务创新研究

泛在知识环境下高校图书馆学科服务的理念、内容和模式都出现了一系列新变化。在对全新的服务理念和服务内容进行分析的基础上,提出图书馆应该建立与此相适应的团队协作、互动协同新模式。     

Diurnal Vertical Migrations of Meiofauna in an Estuarine Sand Flat

Diurnal vertical migrations of meiofauna were observed in an estuarine sand flat and these were related primarily to desiccation and temperature. The migrations, which occurred in the top 10 cm of the sediment, had a mean range of 5 cm and were most strongly exhibited by the interstitial flatworms, polychaetes and oligochaetes, followed by the nematodes and harpacticoid copepods. It is concluded that vertical migrations are restricted to areas experiencing some degree of desiccation and would not be significant in waterlogged areas such as mud flats.     

基于电力线载波的养殖场环境监控终端设计

设计了一种基于电力线载波的环境监控终端设计,使得养殖现场能够通过普遍存在的电力线组成局域网,并且通过WEB服务器与远程控制中心通讯,实现了远程集中控制在中小型养殖场的低成本解决方案。     

莱茵鹅15项血清生化指标的测定及分析

为了更有效地保护和利用莱茵鹅的优良基因,对北方种鹅场和双鸭山种鹅场的莱茵鹅血清进行了15项生化指标的测定及分析。结果表明:北方种鹅场和双鸭山种鹅场莱茵鹅血清三酰甘油、肌酐、直接胆红素、氯、镁、尿素氮、白蛋白和钙等血清生化指标之间的差异达到了极显著水平(P<0.01);血清总蛋白和总胆红素之间的差异达到了显著水平(P<0.05);而葡萄糖、高密度脂蛋白胆固醇、总胆固醇、无机磷和尿酸含量之间差异不显著(P>0.05)。研究还初步建立了莱茵鹅15项血清生化指标的参考值及参考范围。     

论人口、环境与可持续发展

运用社会生态学、经济伦理学和人口经济学等跨学科研究方法 ,揭示了人口环境系统的特征、动因及其容量。描述了人口对环境的压力和环境对人口的威胁。预测了全球与中国面临的人口环境挑战。     

气候变化对内蒙古农牧业生态环境的影响

分析了数十年来气候变暖对内蒙古农牧业生态环境的影响。发现气候变暖使内蒙古地区无霜期延长,积雪、冰雹、雷暴、大风、沙尘暴日数减少,降水量也出现由少转多的变化。事实表明,气候增暖使内蒙古总的生态环境出现向好转化,但是增暖所带来的负面影响是病虫害的增加,加上人为的作用,严重地破坏了内蒙古的生态平衡。     

Evaluation and analysis of reduction of late blight disease in a diploid potato progeny

The rate of late blight disease was analysed for individuals of a diploid Solanum phureja – Solanum tuberosum dihaploid hybrid population (PD), using three different assessment techniques, in the laboratory, screenhouse, and field. These hybrids expressed low disease rates in the field, comparable to resistance based on intact R genes. However, none of the parents of PD expressed any R genes and the pattern of segregation within the PD population was not indicative of R-gene inheritance. The foliage (or leaflet) area diseased had the largest broad-sense heritability of all criteria analysed, in all tests performed. In the field evaluations, the PD population showed intermediate levels of broad-sense heritability for foliage area diseased, relative to the much larger heritability detected for the group of controls possessing R genes. Resistance in the field of the PD hybrids had very little genotype-environment (G × E) interaction, indicating stability of its expression. All genotypes without R genes exhibited heritable, reduced rates of late blight disease in the field, but they were susceptible with low heritability in screenhouse and laboratory tests. This differential expression of disease indicates that the plants' indirect response to unknown environmental stress in the field may have been measured. The value of the PD hybrids for breeding of late blight resistant potato and the use of the disease rate data for detection of the underlying quantitative trait loci are discussed.