Our rivers, our worldThe Sakha Republic (Yakutia), Russia, Region of Olekminsk
Number of groups - 13Number of participanting students – 132 Number of participating teachers - 13
The Lena River The River Lena is one of the planet’s greatest rivers. It carries its waters as far as 4,400 km from its source in the mountains near Lake Baikal to the Arctic Ocean. In the middle of the stream the distance between its banks reaches 15 km; it is as wide as 20 – 25 km in the downstream. And the width of the river mouth is mentioned in Guinness book. The area of the Lena river basin is calculated at 2,490,000 square kilometres (961,394 sq mi), and permafrost is typical of the whole territory.
The Lena River The river gets much water supply from rain and snow. For seven months the river is frozen in ice more than 1 m thick. Freeze up starts in late October, ice breaking and ice-floating starts in the second half of May. The river is home to many kinds of animal and plant life, 37 species of fishes are found in its waters, silver salmon (taimen), lenok, grayling, bass, whitefish, pike are among them.
The banks of the river are covered with thick forest – taiga: there you willsee huge pines with golden-red trunks, thick cedars, dark spruce, fir-treesand tall larches. Vast area of the River Lena basin is homeland for manySiberian people: yakuts, evens, evenks who have close ties with thenature.
The Lena River Some of the Lena tributaries, such as Vitim, Olekma, Viluy, Aldan are greater than many big rivers of Europe. The river doesn’t have any weirs, or dams, or hydro power stations. The river flows along its natural riverbed like millions years ago. You still can drink its water right from the river. Yakutia is the land of amazing picturesque, severe and beautiful nature that inspires artists and poets. A traveler will meet kind, interesting and hospitable people here; and charms of local nature will make him visit this land again.
Besides the Lena River there are lots of other big and small rivers and lakes on the territory of our region and republic. Many of them are of vital importance for he population. The students of different schools monitored water quality in the Lena River and other small rivers and lakes. When we started the project there were 10 schools participating in it. Later a few schools from other regions of the republic joined us in the project.
Kudrin-Abaginskiy Secondary school, Abagha village Water resource under study Lake «Oibon Kyuel», drinkable water Located 1,5 km away from the village. Artificial reservoir. Willow is the main plant on the lakeside, farmland is adjaicing.
Chychymakh is located in the lower Amga River. The lake undermonitoring Khatyryktaakh. In the spring time flooded by the river. Length – 450 m, width - 100 м. It has ice holes for cattle watering. People use ice for pure water.
The Totto Lake Is located in the center of the village. Is surrounded by deciduous forest. The water is good for the cattle. But in the spring time the dung isn’t cleared well from the lake . Length – 58,60 Width – 60 м
Moyuona Lake Length – 850 m width – 667 mThe lake is located 1 km north-west of thevillage. In the spring time people hunt wildfowl,fish and store ice in the autumn.
Kyllakh School Abe Lake The source is the Lena River channel, length - 3 km, width 6-7 m. The lake curves around the village on the north-west side. In winter it serves as cattle watering place, in summer it is recreation area. The main plants are willow, rush, water lily.
Khorintsy School Tymny-Ulakh, never freezing river flowing into the Lena River. Pure spring water. Located 5 km away from the village Khorintsy, east-north on the winter ice road.
Tokko SchoolThe Long Lake, 200 m long, oblong shape.Water is not used for drinking. Located in thevillage outskirts. Freezes in winter. Thickvegetation on the lakeside. There is lots offish in the lake.
Star Infant School Olekminsk, Sakha Republic, RussiaOur Researches on theLena River
Our goals:Learn to do the researches,Learn more about the Lena River
The Lena Cantata by Peter Bernov, the local poet Ах ты, Лена, красавица Лена, Ты как песня, мне в душу вошла, И протоки с черемухой белой, И разливов твоих зеркала. Много рек, и больших, и не очень, Зазывали меня на причал. Но признаюсь тебе, между прочим- Красивее тебя не встречал. Многих ты красотой покорила, Разноцветьем прибрежных полян,Словно мать, своей грудью вскормила Не одно поколенье землян. Много песен, душевных и славных, В твою честь я исполнить готов. Ты проходишь артерией главной Через сердце моих земляков. Свои чувства к тебе и признанье, свою радость и легкую грусть Мне не выразить даже словами – Просто в пояс тебе поклонюсь.
we continue our research as it has socialvalue: It helps us to understand the importance of water resources. It helps us to understand how human economic activity affects the water quality and what consequences it will have for future generations.
The Nimsiki Lake is located on the left bank of the Solyanka river, the River Lena tributary. The village Neryuktiay 2 is located on the left bank of the lake. The word «nimsiki» translated from the yakut language means «dry» or «rotten».Before 1930 the left tributary of the SolyankaRiver flowed on that place. During the spring floodthe water level increased in the lake but in thesummer it decreased and the standing watersmelled bad. Soon the dyke was built and the Nimsiki lake appeared.
The name of our team is «Mermaids».We started to study and monitor the Nimsiki Lake water in 2009.
Saniyakhtah School, Olekminsk, Russia The Lena River The Lena River freezes in winter but people make ice- holes for getting fresh water. The river section under research is located on the left bank of the river 1 km away from the residential rural area and 0.5 km from the ice winter road. Along the banks of the river there are water meadows in the warm season. Lots of plants, herbs an grass species can be found here, many of them are of medical value an widely used in folks medicine. You will find here clover, Gramineae, irises, willow, wild rose, birch and others. In the river water lots of fish species are foun: pike, bass, sturgeon, some local small fishes.
The Tyanya River The Tyanya River belongs to the Arctic Ocean basin. That’s a mountain river with its source 1000 m over the sea level. It flows its waters into the Tokko River. After heavy summer and autumn rains the river floods the adjacent territories. The river feeds on snow and rain waters. The river freezes in late October and breaks up in May. The river flows across the flat valley with small hills 500 – 700 m above the see level. The river environment has plants diversity with boreal species predominating. The most frequent are Gmelin larch, pine, alder, birch, Siberian spruce. On the left bank of the river there are lots of meadows, marshes, moss pine forests. The River Tyanya is the main fresh water source for the local population. Fishing is one of the main people occupation here.
The Lena River belongs to the Arctic Ocean basin, it’s a valley river and like most big Siberian rivers it flows from south to north, from warm latitudes to the cold ones. At the point where our village is located, the river’s width reaches 2,5 km. High-water bed is 3,5 km wide. Autumn freeze-up period starts in the middle of October, By the November second decade the river is totally covered with ice solid. Winter break-up starts in the middle of May. High water period lasts May-June. The Lena River is navigable, it’s the main water way of the region. For the people of the village it is the only road that connects the village with the region center – water in the warm season, ice-road in the winter. It is also the main fresh water resource for the local population. The river abounds in different fish, like taimen, bass, cisco, lenok and others. Picturesque riverside is a good recreation area.The Lena River