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The Bikin
This project is done by Sharikhina Antonina,
Zhivova Elizaveta
Teacher: Bondar Olga Alexeevna
2 слайд
The Bikin is a river in Primorsky and Khabarovsk Krai in Russia. It is a right tributary of the Ussuri River, and is 560 kilometers (350 mi) long, with a drainage basin of 22,300 square kilometers (8,600 sq mi).
Main tributaries are the Alchan, Bachelaza and Zeva rivers.
Geographical position
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The Bikin River flows down to the west slope of the central Sikhote-Alin, linking the Amur River basin in the west to the Primorsky krai in the east. The drainage basin of the Bikin runs through isolated mountainous territory, covered with mixed conifer and deciduous forest, emptying into the Ussuri River and ultimately the Amur and the Okhotsk Sea .
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In comparison with other regions of Russia, the area has a unique landscape and biogeographical
characteristics and a high density of rare and endangered species. Everyone can meet here reproductive core of northern subpopulation of the Amur tiger , as well as another 51 species of mammals, there is a high density of hunting animals, a bulk nesting of the scaly-sided merganser population , fish-owls and other 169 species of birds.There you can also find 7 main species of the basin.
The National Resources
5 слайд
The Forest Resources
Nutwood commercial zone has 99% of woodiness. The main woody species are Korean pine– 44%, Asian spruce– 38%, yellow birch– 9%, larch– 4%, white birch – 3%.
More than 40 species of plants are valuable due to their medicated,nutritive, technical and they are growing in the taiga.
Annually local people gather a lot of
rare herbs in this ecologically clean region
which meet the demands of medical herbsof the whole Primorye.
6 слайд
Fauna or Animal World
Relief features, plant and climate diversity at the Middle and Upper Bikin territory are defined by the species and ecological diversity of region’s fauna and its distribution on the territory. Here are habitats of the following mammals: morel, elk , musk deer, wild hog, roe deer , Himalayan black bear and brown bear, Amur tiger, Indian marten, wolverine sable, acclimatized American mink badger and Siberian striped weasel several species of shew.
7 слайд
Fauna of the birds
The fauna of the main territory is very uncommon because of its special ecological structure . There are 241 bird species, which belong to 17 classes and they are known for being at the Bikin basin. Among them 171 species (about 71.8%) are noticed here to nest , the rest of birds can be met during seasonal migrations. The majority of breeding bird species (97) inhabit the valley broadleaf and pine-broadleaf forests. Rare feathered species, confined to the river basin and, moreover, to the fish resources and abundance of amphibian in the thick forests, are the following:a black stork, a scaly-sided merganser,a mandarin duck , a greyfaced buzzard, an osprey and a black fish-owl. A long-billed ringed plover is a very rare endemic species but it is typical by the endless river banks.
8 слайд
The Upper and Middle Bikin is full of various fishes within 7 families. Salmonidae with 5 species and Cyprinidae with 10-12 species are the greatest amount . The northern lampreys, graylings, cottids , loachgobies, and true loaches are the smallest number of fishes.
The fish fauna
9 слайд
River Pollution
Causes of pollution
Pollution may be of different kinds:
Rubbish like crisp packets, newspaper and bags.
Oil
Poisonous substances
Cans, bottles and other solid objects
Human waste / excrements
Nowadays people are sometimes careless and they throw rubbish such as bottles and crisp packets into the water.
10 слайд
Pollution kills water plants and animals.
Polluted water also carries diseases. When animals drink dirty water, they may get diseases which can kill them. People can even get these diseases by eating the infected animals.
River looks unpleasantly when there is a lot of rubbish in it.
Polluted river smells badly.
Effects of pollution
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Solutions
Anti-pollution laws and regulations at local, state and international levels are helpful measures for reducing water pollution. Laws can make water pollution levels lower and lower to the minimum.
Proper disposal/containment of toxic chemicals/materials before they have an opportunity to reach our river.
Toxic fumes being produced by industrial plants should be filtered, rerouted and cleaned before releasing to the atmosphere.
12 слайд
Thank you for your attention
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