Anubha Kaushik's Basics Of Environment And Ecology PDF

By Anubha Kaushik

ISBN-10: 8122428568

ISBN-13: 9788122428568

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Additional resources for Basics Of Environment And Ecology

Sample text

Surface Water The water coming through precipitation (rainfall, snow) when does not percolate down into the ground or does not return to the atmosphere as evaporation or transpiration loss, assumes the form of streams, lakes, ponds, wetlands or artificial reservoirs known as surface water. The surface water is largely used for irrigation, industrial use, public water supply, navigation etc. A country’s economy is largely dependent upon its rivers. Water rich vs. Water poor countries The top ten water rich countries are Iceland, Surinam, Guyana, Papua New Guinea, Gabon, Solomon Islands, Canada, Norway, Panama, and Brazil lying in the far north and have low evaporation losses.

A. in 1969 first of all provided the guidelines for environmental impact assessment through Council for Environmental Quality (CEQ). In India, the gazette notification on EIA was issued in 1994 vide which the Ministry of Environment and Forests provided guidelines for project proponents to have EIA and prepare an Environmental Impact Statement prior to clearance of the project. 1 Goals of EIA (i) To fulfill the responsibilities towards the coming generations as trustees of environment. (ii) To assure safe, healthy, productive, aesthetically as well as culturally pleasing surroundings.

2 shows the groundwater system. Groundwater is not static, it moves, though at a very slow rate of about a meter or so in a year. Unconfined aquifer recharge area Precipitation Confined aquifer recharge area Evapo-transpiration Evaporation from croplands Evaporation from stream from lake Infiltration Permeable rock Infiltration Less permeable material Unconfined aquifer (Water table) Impermeable rock layer Confined aquifer Fig. 2 The groundwater system. An unconfined aquifer (water table) is formed when water collects over a rock or compact clay.

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Basics Of Environment And Ecology by Anubha Kaushik


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