Advances in Origin, Evolution and Classification of Pyrus L.

China is not only one of the origin centers of Pyrus L., but also the earliest birthplace of Pyrus L. in the world. This paper reviews the evolution of Pyrus L. from the aspects of leaf edge morphology, inflorescence and fruit type, and summarizes the research progress of classification and species distribution of Pyrus L., which is of great significance for the protection, evaluation and utilization of germplasm resources

Cultivation and Primary Processing of Medicinal Chrysanthemums

The morphological characteristics and growth habits of medicinal chrysanthemums are described, the cultivation techniques are summarized from the aspects of nursery, transplanting and field management, and the harvest and primary processing technology are introduced in detail

Research and Exploration on Ideological and Political Theories Teaching in the Course of Soil Science Experiment: Taking Pingdingshan University as an Example

Experimental course is an important link of ideological and political education in colleges and universities under the new situation,and plays an important role in the construction of ideological and political theories teaching in the course.Taking Pingdingshan University as an example,by introducing the real soil cases in Pingdingshan area,the ideological and political elements of the course are integrated into the teaching links of laboratory safety training,self-study before class,experimental teaching implementation,evaluation and improvement.By implementing the concept of "All-round Education" in experimental teaching,we are committed to realizing the comprehensive coverage of value shaping,knowledge inheritance and ability training,and explore and practice the reform of ideological and political theories teaching in the course of Soil Science Experiment

Characteristics of Soil Seed Banks of Typical Plant Communities in Hilly Area of Funiu Mountain

[Objectives] The purpose was to investigate the characteristics of soil seed bank of typical plant communities in hilly area of Funiu Mountain. [Methods] The seed density, number of species and species composition of the soil seed bank of typical plant communities such as Themeda japonica, Imperata cylindrica, Vitex negundo, Quercus acutissima, Robinia pseudoacacia, Platycladus orientalis and Populus canadensis in the surface, top 0-5 and top 5-10 cm soil were studied. [Results] The seed reserves of plant communities at different succession stages were (220.00±95.39) – (2 650.00±1 064.52) seeds/m2. A total of 48 species were counted in the seed bank, belonging to 45 genera in 22 families. Total 27 species were identified in the above-ground vegetation, belonging to 25 genera in 14 families. In the shallow soil where the seeds gathered, the seed densities of Imperata cylindrica and Themeda japonica were relatively low. The reserves of plant communities with different naturalness degrees were (403.33±64.29) – (2 110.00±356.79) seeds/m2. A total of 67 species were counted in the seed bank, belonging to 64 genera in 37 families. A total of 45 species were identified in the above-ground vegetation, belonging to 43 genera in 28 families. In the soil layers of 0-5 and 5-10 cm, the seed density of natural secondary Q. acutissima was higher than those of planted P. canadensis, P. orientalis and R. pseudoacacia. In each soil layer, the species number of natural secondary Q. acutissima forest was slightly smaller than those of planted P. canadensis, P. orientalis and R. pseudoacacia forests. [Conclusions] The seeds in the soil seed bank may not completely come from existing above-ground vegetation. Manual assistance is required for vegetation restoration or reconstruction relying on soil seed bank, to ensure the direction of community succession

Construction Method of Ideological and Political Theories Teaching in the Course of Environmental Microbiology for Environmental and Ecological Engineering Major

Environmental Microbiology is a professional basic course in the curriculum system of Environmental and Ecological Engineering major,which follows the requirements of ideological and political theories teaching in the course in higher education,and should be implemented in every course.Therefore,the construction of ideological and political theories teaching in the course should be an important task in the course construction of Environmental Microbiology.In view of the curriculum characteristics of Environmental Microbiology,such as multi-disciplinary feature,wide coverage and rapid development,it is an effective method for the construction of ideological and political theories teaching in the course of Environmental Microbiology by fully tapping the ideological and political elements of the curriculum,such as patriotism,scientific spirit and practical innovation,and integrating the ideological and political theories teaching in the course into the whole curriculum design and classroom teaching construction

Construction Method of Ideological and Political Theories Teaching in the Course of Environmental Microbiology for Environmental and Ecological Engineering Major

Environmental Microbiology is a professional basic course in the curriculum system of Environmental and Ecological Engineering major,which follows the requirements of ideological and political theories teaching in the course in higher education,and should be implemented in every course.Therefore,the construction of ideological and political theories teaching in the course should be an important task in the course construction of Environmental Microbiology.In view of the curriculum characteristics of Environmental Microbiology,such as multi-disciplinary feature,wide coverage and rapid development,it is an effective method for the construction of ideological and political theories teaching in the course of Environmental Microbiology by fully tapping the ideological and political elements of the curriculum,such as patriotism,scientific spirit and practical innovation,and integrating the ideological and political theories teaching in the course into the whole curriculum design and classroom teaching construction

Research and Practice on the Construction of Professional Cluster in Application-Oriented Local Undergraduate Universities: Taking Environmental Chemical Engineering Professional Cluster in Pingdingshan University as an Example

Based on the analysis of the importance of professional cluster construction by ecological theory, with the change of social demand for talents, this paper explores the practice of environmental chemical professional cluster construction in Pingdingshan University, including gradually perfecting teaching conditions and reforming teaching mode, breaking through the limitations of resources, integrating the boundaries of colleges and departments, integrating multiple resources, innovating systems and mechanisms, reconstructing professional clusters, deconstructing professional connotations, reorganizing curriculum systems, etc., in order to better build the ecological chain network of education in application-oriented colleges and universities, realize the deep integration of industry and education, train future-oriented interdisciplinary applied talents of new engineering, and realize the construction of characteristic professional cluster in application-oriented colleges