India

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From collection to storage and recharge, Maitra explains in layman's terms the basics of rainwater harvesting.

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India is gifted with heterogeneous landforms and variety of climatic conditions such as the lofty mountains, the raverine deltas, high altitude forests, peninsular plateaus, variety of geological formations endowed with temperature varying from arctic cold to equatorial hot, and rainfall from extreme aridity with a few cms (<10 cm) to pre humid with world's maxim

Topographical maps are crucial while planning and implementing watershed development programs. In India, these are available from the Survey of India, Dehradun.

This research study (Mar 15 2009) throws light on how climate change is leading to a rising trend of short but intense spells of rainfall, which is making usable water scarce in India.

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Seven easy steps to constructing a recharge pit
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The making of a recharge well
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This map provides the of levels of water pollution and groundwater depletion due to industrial activities in different parts of India. 

Soils constitute the upper portion of the earth's crust, and are the base of human habiation on the earth. India has a great variety of soils, with over 29 major types.

The map can be accessed from the Survey of India website

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Consisting mainly of arid and semi-arid areas and the country's 200 backward districts, these rainfed regions are concentrated in 13 states.