Тезисы для защиты научно-исследовательской работы на английском языке

Theses

Actuality of our work is that the Earth’s surface is regularly changes in the result of internal and very external interprocesses. The relief that we see on the territory of our country there is a result of external processes and human activities. Fluid waters always change the land surface of dry spell. It (their relief work) continues at the present time. The destruction of mountain rocks and soil by fluid waters (erosive processes) appeared especially strongly in our area.

Statement of the problem.

Great influence on all living environment is rendered by a man. Unfortunately, his fault in the habitat of living organism get poisonous substances (which is the reason) of the death of fishes and other animals and other changes different destructions of the environment are because of people cut down the forest, fields, get mining and because of other kind of economic activities.

The practical importance of our work consist of that we practically explored small land forms, studied the anthropogenic human impact on the relief and the got results we will use to perform practical tasks.

The novelty of the work  lies in the fact that we first began to study the human impaction the relief of Daban village and anthropogenic influence. The subject of the work are relief forms.

Hypothesis: If we will spend some works to prevent degradation on the researching area, then falling of erosive process is possible.

Our purpose is to research relief forms of our village Daban.

Our tasks are firstly, to define relief forms. Secondly, to define natural and anthropogenic land forms and their comparison. Thirdly, to define the positive, negative forms of relief. Fourthly, to make the scheme-map of anthropogenic loading on the area.

The materials and methods for our work were the choice of areas for research and to conduct anthropogenic and natural, positive and negative forms of relief.

Researched areas “Ulach-yruye” village and outskirts of Daban are located on the left bank of the Lena river, on a hill Prilenskii. Nature of the surface is uneven. “Ulach-yruye” is located on lowland. The area around the village is a forest. The area of the village is from power-station diagonally to the river. It is on the hillock. The route to the bank passes through two slops. The corner of this slope is about 30 degrees. Having studied the relief in researched area we found that the most common elements of the relief, occupying more than 90%, are hillocks and slopes limiting the different forms of relief and having a slope of not less than 2 degrees. We defined the slopes have different angles of slope. In our researched area the slopes can be divided into a very gently (less 3 degrees), gently sloping (3-5), sleep (20-45), abrupt (more than 45) (table 2). Depending on the angle of slope there are different forms such as “direct”, “convex”, “convex-concave”, “step”, “wavy” (picture 1). According to the classification of simple forms of relief in our area positive forms are more than others. The most widespread elements of relief are very gentle slopes, strongly, sloping, sleep and the area “outskirts of Daban” is distinguished by them.

The positive forms of relief such hillocks, hills, billows and manes are dominated in our researched area and the area №2 “Outskirts of Daban” is also distinguished by them. The less widespread elements are negative, such as ruts, holes, grooves which had become by a man. And ravines, Unfortunately cliffs had become and are developing due to natural forces but provoked by people (Table)

Also when passing  through the route (while researching the relief) we identified natural and anthropogenic landforms.

 In conclusion I would like to say that in the result of studying of relief  forms on  the researched areas “Uulaach Yruye”,  ”Outskirts of the village” we came to the following conclusions:

1. The positive forms of relief such hillocks, hills, billows and manes are dominated in our researched areas “Uulaach Yruye”,  ”Outskirts of the village”. The area № 2  Outskirts of the village” is distinguished by positive relief forms and make 77 % (per cent) of total number of their crossings on the area.
2. On  the researched areas “Uulaach Yruye”,  ”Outskirts of the village” the most widespread forms are anthropogenic which make 91 % (per cent)  of total number of their crossings on the area. On the area "Uulaakh-uruye" the natural forms of a relief are dominated and make 63% of total number of crossings on  the area.
3. When comparing all researched areas we  saw that the area № 1 "Uulaakh-uruye"  is distinguished by following objects: “not measurable”, “measurable”, and “point objects”

Thanks for your attention!