Question

(a) What are the aims of watershed management?
(b) Mention the problems caused by the construction of large dams.

Answer 1

First we ought to comprehend about watershed administration to reply to this question. Watershed management refers to the technique of growing and enforcing strategies, programmes, and initiatives within a watershed boundary to keep and make bigger watershed functions that impact the plant, animal, and human ecosystems.

Complete answer:
(a) Through integrated and holistic efforts, the essential intention of watershed protection is to preserve, preserve and fix water fantasies in our watersheds. The goal of the administration of watersheds is to set up essential sources of water and land to produce secondary sources of animals and plants for use in approaches that do now not create ecological imbalances. It also targets rising rainwater infiltration as it will assist to manipulate and make use of the rainwater for advisable purposes. Its goals are not solely to satisfy the need for transportable water, however additionally to preserve, maintain and decorate the watershed land for more productive and sustainable development.

(b) The disadvantages of giant dams are:
1)Flooding of giant areas of land which results in destroying fauna and flora.
Construction of dams throughout the rivers leads to deforestation which in turn results in the loss of biodiversity. Also the vegetation and fauna get affected with the aid of altering the bodily traits of the river below the dam.
2)Impeding fish migration, and thereby killing massive numbers of fish that omit thru hydroelectric turbines.
3)Causing serious ecological problems like elimination of forest, soil erosion etc.

Note: Building large dams causes many other issues as well: displacing neighborhood humans without rehabilitation, loss of livelihood of the tribal community etc. Also, a massive quantity of economic investments is required for the construction of dams.