Beki River as an independent Ecosystem and its Biodiversity

Beki River as an independent Ecosystem and its Biodiversity

      Beki River: Beki river is one of the right bank tributaries of the Brahmaputra river which flows down from the Bhutan, where it is known as Kurissu river. It flows through the Manas National Park and large portion of Beki flows throughout Assam and ultimately mix with Bay of Bengal. Beki is originated from Himalayan Glacier and its water is so cold and transparent during October to April.

Fig: Photoshot of Beki River ( Winter Season View )

        Beki River flows through Manas National Park ( Famous for Tiger Project ) and over the nearby areas like Mathanguri, Narayanguri, Chunbarai, Khusrabari, Valaguri, Gamariguri, Gobardhana, North Safakamar , Safakamar, Barpeta road, Sorbhog, Kalgachia, Kamarpara, Moinbhori,and so on. The water quality of the river is fresh and it is home of numerous Fishes, Amphibious, Reptiles, Birds, Insects etc. It is home to several ornamental fish species.

Photoshot: Evening view of Beki River

Photoshot: View at Narayanguri area

Soil Erosion: Soil Erosion creates a major problem every years and it causes huge loss of public and private properties. Due to soil erosion many people become homeless every year and are still living by making small hut near by the Manas National park road or other inappropriate places. Soil Erosion also damages the main road which lead to National park and Bhutan. This year soil erosion demolish more than 1000 houses, fields, agricultural lands and roads etc. The major effects of soil erosion is seen Barpeta and Baksa districts. Government are taking steps to prevent soil erosion using traditional method which fails to prevent erosion. It requires a heavy budget scientific method to prevent soil erosion fully.

Photoshot: Erosion of Beki River, Half of  Manas Road  are damaged by Erosion

Threat To Manas National Park Road: The heavy current of water during summer season creates havoc in river and this is the main causes that responsible for soil erosion. The water directly beat the bank of river as a result it increases its area which is known as soil erosion. Soil erosion is one of burning problems in the nearby area of Manas National Park. Areas such as Gamariguri, North Safakamar, Safakamar, Chunbari, Narayanguri are the living examples of soil erosion. During last year some regions of the National Park was also under the threat of erosion. Now the Manas road is under erosion and its maximum region at North Safakamar has already damaged. Therefore, communication is disrupted. Its urgent to control the erosion and reconstruct the damage road. Generally two main reasons are responsible for soil erosion-
     1. Heavy Current of water is the main cause. During summer water current is very high and it causes erosion.
     2. Digging of the bottom of river for natural resources. People are digging the daily and getting sands and stones that are used to construct building, roads, bridges etc.
     
Natural Resources of Beki River: The Beki river is a freshwater aquatic ecosystem which is in natural resources. The abiotic factors e.g. - sands, stones etc are costly because these are the raw materials for construction of houses, bridges, roads etc. People of nearby villages Gamariguri, Narayanguri, Chunbari, Safakamar, Sorbhog, Katajhar pather, Gobardhana etc. are completely depended on resources of the river.

Biodiversities of Beki river:  Freshwater Beki river is rich in bio-diversities. It is the home of a variety of food fishes species, ornamental fishes species, amphibians, reptiles, birds, insects etc.
    1. Fish Species of Beki River: 

EFFECTS OF PESTICIDE ON AQUATIC WORLD USED BY INDO-TIBETAN FARMERS

 DESCRIPTION:
       The Indo-tibetan border areas are widely used by the local peoples for the use of agriculture, and thus they converted them into artificial ecosystem. Besides the local climate also permits them to cultivate various types of crops, vegetables etc. During winter season a large scale of production of green leafy vegetables viz. cauliflowers, brinjals, cabbage, tomatos, beans, lady's finger, carrots etc. are noted which also exported across the country to various parts of world. A variety of rices are also cultivated during summer and theese are often noticed that a huge no of pests damages the plants and at present the vegetable fields are are damaged by the fungal diseage commonly called as blight. To ov ercome such diseases farmers continuousely spray a huge no of pesticides, fungicides etc. so using such insecticides are common cultivating all types of crops. Tomato plants, Lady's finger plants, Potato plants are commonly affected by fungal infection which is characterised by the shrinking of the leaves.




  

  

                                                  Brinjal field (upper) and pea field (lower)

    
             To avoid the infection of fungi fungicides should always be sprayed after 4-5 days interval. Fungal infections are the main problems of the farmers as it damage the plant leaf during the early time of maturity of plants. It is due to heavy coldness of the weather during the winter season, as the temperature increases the infection is decreases. The fungal disease is called as a 'Blight'. In the potato and tomato field it is very common which lead to a heavy los. However blight  is also noticed on lady's finger plants that causes the foliage of leaves become shrivelled and brown rottingis also noticed.

                           Farmer spraying fungicides on Lady's finger field to control fungal infection

SYMPTOMPS OF FUNGAL DISEASE: As mentioned above the fungal disease is very common in the Indo-Tibetan areas and every years farmers have to face a heavy loss in their production. The blight is often damage the leaf foliage and stem and sometime the fruit also if it spread heavily. the Potato and Tomato blight is characterized by the shrivelled of foliage and turn brown as a result the affected parts become rotten. The disease may spread rapidly to the other parts of the non infected leaves and stems.The early attacks of blight may not be visible, special examinations should be made as the temperature falls.