scholarly journals Investigation and Ecological Evaluation of Plant Resources on Campus of Jiamusi University

2019 ◽  
Vol 136 ◽  
pp. 06017
Author(s):  
Haoru Liu ◽  
Tianqi Yang ◽  
Shengju Li ◽  
Ye Gu ◽  
Lan Li
Keyword(s):  
Woody Plants ◽  
Systematic Investigation ◽  
University Campus ◽  
Ecological Distribution ◽  
Community Characteristics ◽  
Ecological Civilization ◽  
Plant Resources ◽  
Ecological Evaluation ◽  
Growth Environment ◽  
Forest Margin

The purpose of the systematic investigation of plant resources in Jiamusi University campus is to understand the composition, community characteristics and ecological distribution of plant resources in Jiamusi University, and to make rational use of them. In the process of investigation, the methods of actual step-by-step search and data search are adopted to carry out ecological evaluation. According to statistics, there are 113 kinds of plants on Jiamusi University campus, of which 93 are woody plants and 18 are herbaceous plants. Its growth environment is suitable for forest margin, undergrowth, hillside, and shrub and so on. Its main uses are greening, shading, dust prevention and noise reduction. It has high value. It is hoped that the research will provide a basis for the future construction of ecological civilization on campus.

ON TERMITARIA IN A SAVANNA ECOSYSTEM

1965 ◽  
Vol 43 (4) ◽  
pp. 641-650 ◽  
Author(s):  
R. J. A. Goodland
Keyword(s):  
Environmental Factors ◽  
Soil Nutrients ◽  
Woody Plants ◽  
Plant Cover ◽  
Ecological Distribution ◽  
British Guiana ◽  
Extensive Bibliography

During the course of a quantitative phytosociological analysis of the vegetation of the Northern Rupununi Savanna, British Guiana, the termitaria were measured by the Quarter Method of the Wisconsin School in a manner similar to that for trees. The ecological distribution of the termitaria was found to be correlated with quantitative expressions of the vegetation and the environmental factors. The termites impoverish the surrounding soils by concentrating soil nutrients into their termitaria. They reduce the plant cover and decrease the water-retaining capacity of the soils. Termites are shown to be an integral part of the savanna ecosystem. Termites may aid the growth of woody plants by improving the drainage and allowing the growth of the roots of phreatophytes through a hard pan. Termitaria, termites, and their effects on the soil and the vegetation are briefly discussed in general. Also presented are a chart of the savanna ecosystem and an extensive bibliography.

Study on the University Campus Subculture under the Guidance of the Construction of Ecological Civilization

2014 ◽  
Vol 507 ◽  
pp. 851-854
Author(s):  
Dong Bo Cao
Keyword(s):  
New World ◽  
Ecological Theory ◽  
First Century ◽  
Campus Culture ◽  
University Campus ◽  
Ecological Civilization ◽  
Ecological Development ◽  
Construction Strategy ◽  
Twenty First Century ◽  
The University

From the perspective of ecological criticism, this paper made ecological civilization construction extend into the field of education, and combined the ecological theory with the university campus practice, and discussed the construction strategy of university campus sub-culture, so that we can create a new world of ecological campus, and realize the ecological development of university campus culture in twenty-first century, which regarded the construction of ecological civilization as the guiding ideology.

scholarly journals Nomenclature of woody plants in the State Register of Plant Varieties of Ukraine

2021 ◽  
Vol 12 (1) ◽  
pp. 68-75
Author(s):  
V. M. Mezhenskyj ◽  
L. O. Mezhenska
Keyword(s):  
Woody Plants ◽  
Negative Impact ◽  
The State ◽  
Agricultural Practice ◽  
Plant Resources ◽  
Professional Literature ◽  
State Register ◽  
Code Of Nomenclature ◽  
Plant Names ◽  
Agricultural Literature

The efficiency of plant resources depends on the correct use of plant names. Ukrainian names of plants belonging to the botanical and agrobiological classification are widely used in the scientific agricultural literature, but both of them are not definitively organized. The crop names have long been used in agricultural practice, in particular during the systematization of regionalized plant varieties. During the registration of a variety, the taxon to which it belongs is indicated and the taxon is indicated by this name in the State Register of Plant Varieties suitable for dissemination in Ukraine. The names of plants adopted in the State Register are a mixture of correct and incorrect names, which arose as a result of an unconscious adaptation of the names of agrobiological nomenclature by likening them to the names of botanical taxa. The list of registered varieties belonging to certain taxa, which are grouped by economic use there is in the State Register. Sometimes varieties and taxa are placed in inappropriate groups. Varieties belonging to the same taxon are sometimes denoted by different species names. Obsolete Latin names or their spelling has a deviation from the accepted given for some taxa of woody plants. Some of the botanical taxa are named by crop names. Russified crop names instead of specifically Ukrainian ones occur and the rules of normative transliteration of varietal names are violated. The plant names constructed in the State Register have negative impact on professional literature. They destroy the system of agrobiological nomenclature and contradict the norms of the scientific style of the literary Ukrainian language. The recommendations of the International Code of Nomenclature for algae, fungi, and plants should be followed and the «Rules of Plant Nomenclature, Taxonomy, and Cultonomy», designed to regulate Ukrainian plant names to correct these shortcomings, should be applied.

scholarly journals Diversité et usages des plantes ligneuses des agrosystèmes périphériques de la ville de Maroua (Extrême-Nord, Cameroun)

2020 ◽  
Vol 14 (3) ◽  
pp. 966-982
Author(s):  
Claudette Baye Niwah ◽  
Gilbert Todou ◽  
Konsala Souare ◽  
Abassi Abdoulaye ◽  
Sakitai Bay ◽  
...  
Keyword(s):  
Woody Plants ◽  
Sustainable Use ◽  
Acacia Nilotica ◽  
Ziziphus Mauritiana ◽  
Tamarindus Indica ◽  
Plant Resources ◽  
Balanites Aegyptiaca ◽  
Far North ◽  
Sclerocarya Birrea ◽  
Acacia Albida

Une étude a été menée en périphérie de Maroua (Extrême-Nord, Cameroun) dans le but de contribuer à une gestion durable des ressources végétale sahélienne. Cette étude a identifié et a calculé la diversité des plantes ligneuses des champs de case suivant un dispositif de 20 quadrats (50 m x 50 m) dans cinq localités. Elle a aussi déterminé les catégories d’usage et les organes récoltés de chaque plante utilisée. La Méthode Accélérée de Recherche Participative (MARP) a été reprise pour collecter les données ethnobotaniques auprès de 100 ménages. Les analyses des résultats obtenus ont montré que les champs de case comportent au total, 38 espèces (26 plantes locales) réparties dans 27 genres et 26 familles. Les familles les plus abondantes ont été Méliacées (32,26%) et Mimosacées (29,26%). Acacia nilotica, Acacia albida, Balanites aegyptiaca, Moringa oleifara, Sclerocarya birrea, Tamarindus indica et Ziziphus mauritiana sont les espèces locales les plus utilisées (au moins quatre catégories d’usages). Les résultats ont montré que les champs de case peuvent être des bons systèmes de valorisation et de conservation des plantes locales.Mots clés : Champs de case, plantes ligneuses, enquête ethnobotanique et socio-économique, valorisation, usage durable.   English Title: Diversity and uses of woody plants from peripheral agro-systems in the city of Maroua (Far North, Cameroon)A study was conducted around Maroua (Far North, Cameroon) with the aim of contributing to sustainable management of Sahelian plant resources. This study identified and calculated the diversity of woody plants in village fields using a system of 20 quadrats (50 mx 50 m) in five localities. It also determined the categories of use and the organs harvested from each plant used. The Accelerated Participatory Research Method (MARP) was used to collect ethnobotanical data from 100 households. Analyzes of the results obtained have shown that the village fields contain in total 38 species (26 native plants) in 27 genera and 26 families. The most abundant families were Meliaceae (32.26%) and Mimosaceae (29.26%). Acacia nilotica, Acacia albida, Balanites aegyptiaca, Moringa oleifara, Sclerocarya birrea, Tamarindus indica and Ziziphus mauritiana found to be the most commonly used local species (at least four categories of uses). The results showed that village field can be good systems for the recovery and conservation of native plants.Keywords: Village field, woody plants, ethnobotanical and socio-economic survey, valorization, sustainable use.  

scholarly journals Effect of Ecological Environment on Outdoor Sports

2021 ◽  
pp. 45-53
Author(s):  
Li Qiushi
Keyword(s):  
Physical Education ◽  
Physical Exercise ◽  
Colleges And Universities ◽  
Ecological Environment ◽  
Ecological Civilization ◽  
Teaching Mode ◽  
Ecological Evaluation ◽  
Outdoor Sports ◽  
The Impact

The quality of ecological environment directly affects the effect of outdoor exercise and outdoor physical education. In this study, the principles of integrity, dynamic, systematic and difference of ecology are integrated into the process of outdoor exercise and outdoor physical education in Colleges and universities. This paper attempts to comprehensively reflect on the impact of the current ecological environment on outdoor physical exercise and teaching effect from the perspective of ecology, so as to reform and improve the current outdoor sports mode. Based on the theories of physical education, pedagogy, ecology and other related disciplines, this paper studies the influence of ecological environment on outdoor exercise and outdoor physical education teaching mode in Colleges and universities. This paper analyzes the above problems from the perspective of ecology, and draws the following conclusions: innovation and optimization of outdoor physical exercise and teaching mode in Colleges and universities from the perspective of ecology should adhere to the guiding ideology of lifelong physical education and people's all-round development. It is necessary to establish the concept of ecological evaluation, give full play to the subjective initiative of evaluation objects, and establish multiple evaluation standards. By comprehensively innovating and optimizing the college physical exercise teaching mode from the various elements of the teaching mode, we can build an ecological college outdoor physical exercise and teaching mode that is more suitable for the construction of ecological civilization.

Ecological evaluation of existing plant resources of Manrai hills, Swat, Pakistan using multivariate analysis

2020 ◽  
Vol 52 (5) ◽  
Author(s):  
Muhammad Ilyas ◽  
Rahmatullah Qureshi ◽  
Ziaul Haq ◽  
Izhar Ul Haq ◽  
Mubashrah Munir ◽  
...  
Keyword(s):  
Multivariate Analysis ◽  
Plant Resources ◽  
Ecological Evaluation

Grain Refinement in Titanium-Erbium Alloys

1974 ◽  
Vol 32 ◽  
pp. 522-523
Author(s):  
B. B. Rath ◽  
J. E. O'Neal ◽  
R. J. Lederich
Keyword(s):  
Electron Microscopy ◽  
Size Distribution ◽  
Grain Refinement ◽  
Grain Growth ◽  
Volume Fraction ◽  
Pure Titanium ◽  
Systematic Investigation ◽  
Second Phase ◽  
Titanium Matrix ◽  
Average Size

Addition of small amounts of erbium has a profound effect on recrystallization and grain growth in titanium. Erbium, because of its negligible solubility in titanium, precipitates in the titanium matrix as a finely dispersed second phase. The presence of this phase, depending on its average size, distribution, and volume fraction in titanium, strongly inhibits the migration of grain boundaries during recrystallization and grain growth, and thus produces ultimate grains of sub-micrometer dimensions. A systematic investigation has been conducted to study the isothermal grain growth in electrolytically pure titanium and titanium-erbium alloys (Er concentration ranging from 0-0.3 at.%) over the temperature range of 450 to 850°C by electron microscopy.

Optical Properties of HVEM Accelerators

1975 ◽  
Vol 33 ◽  
pp. 180-181
Author(s):  
A. Strojnik ◽  
J.W. Scholl ◽  
V. Bevc
Keyword(s):  
Optical Properties ◽  
Electron Accelerator ◽  
Systematic Investigation ◽  
Electron Source ◽  
High Brightness ◽  
The Past ◽  
Wide Range ◽  
Optical Behavior

The electron accelerator, as inserted between the electron source (injector) and the imaging column of the HVEM, is usually a strong lens and should be optimized in order to ensure high brightness over a wide range of accelerating voltages and illuminating conditions. This is especially true in the case of the STEM where the brightness directly determines the highest resolution attainable. In the past, the optical behavior of accelerators was usually determined for a particular configuration. During the development of the accelerator for the Arizona 1 MEV STEM, systematic investigation was made of the major optical properties for a variety of electrode configurations, number of stages N, accelerating voltages, 1 and 10 MEV, and a range of injection voltages ϕ0 = 1, 3, 10, 30, 100, 300 kV).

Magnitude Estimation and Cross-Modal Matching of Lingual Vibrotactile and Auditory Sensation

1989 ◽  
Vol 32 (3) ◽  
pp. 698-702 ◽  
Author(s):  
Daniel Harris ◽  
Donald Fucci ◽  
Linda Petrosino
Keyword(s):  
Auditory Stimulus ◽  
Magnitude Estimation ◽  
Sensory Processing ◽  
Test Site ◽  
Systematic Investigation ◽  
Thenar Eminence ◽  
Stimulus Range ◽  
Psychophysical Scaling ◽  
Scaling Methods ◽  
Response Biases

The present experiment was a preliminary attempt to use the psychophysical scaling methods of magnitude estimation and cross-modal matching to investigate suprathreshold judgments of lingual vibrotactile and auditory sensation magnitudes for 20 normal young adult subjects. A 250-Hz lingual vibrotactile stimulus and a 1000-Hz binaural auditory stimulus were employed. To obtain judgments for nonoral vibrotactile sensory magnitudes, the thenar eminence of the hand was also employed as a test site for 5 additional subjects. Eight stimulus intensities were presented during all experimental tasks. The results showed that the slopes of the log-log vibrotactile magnitude estimation functions decreased at higher stimulus intensity levels for both test sites. Auditory magnitude estimation functions were relatively constant throughout the stimulus range. Cross-modal matching functions for the two stimuli generally agreed with functions predicted from the magnitude estimation data, except when subjects adjusted vibration on the tongue to match auditory stimulus intensities. The results suggested that the methods of magnitude estimation and cross-modal matching may be useful for studying sensory processing in the speech production system. However, systematic investigation of response biases associated with vibrotactile-auditory psychophysical scaling tasks appears to be a prerequisite.

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