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Groundwater
Watershed scale planning- Application of rainwater harvesting techniques
Posted on 15 Sep, 2009 04:20 PMThe first project was conducted by the BAIF Development Research Foundation in the Hassan District of Karnataka. They created a linked network of 350 farm ponds covering 700 hectares of the watershed.
How to create a farm pond for water storage
Posted on 15 Sep, 2009 03:56 PMThe ideal farm pond should be dug into the ground in a naturally low-lying area. Some of the soil that is removed can be used to construct an earthen berm around the pond, which should be planted with trees and grasses for stability. The shade and wind protection provided by the raised mound and vegetation will reduce evaporative losses.
Groundwater recharge structures
Posted on 15 Sep, 2009 03:41 PMWhere conditions are favorable, it is better to recharge the groundwater than to create surface ponds for storage. This approach minimizes evaporative losses, and often improves water quality. Recharge structures can be anything from a small pit simply dug into the soil, to a borewell converted for recharge. Recharge structures are useful in sloping landscapes where the water would not otherwise have time to sink into the ground before running off.
Tank Development - Design and features
Posted on 15 Sep, 2009 02:11 PMIf the intention is to develop a tank by holding back a large amount of water, then the dam must be carefully designed (with the assistance of experienced local people or engineers).
Techniques to slow runoff and erosion from steeply sloping land
Posted on 15 Sep, 2009 12:37 PMThese techniques are useful to slow runoff and erosion from sloping land, and also to revegetate degraded areas. Areas with high rainfall, steep slopes, and thin soils should use slightly graded bunds / terraces / trenches to allow some drainage.
Tips for using bunds in cultivated Land
Posted on 15 Sep, 2009 12:06 PMBunds have many benefits, including marking the boundaries of farm-holdings, slowing the movement of soil and water, and providing a place for integrating trees into agricultural systems. Here are some tips for using bunds within farmland:
- Cattle should be kept away from the area while establishing saplings, by using livehedge fencing. Cactus, Euphorbia spp, and Agave are useful for a livehedge fence.
- Larger trees can be planted on boundary bunds, and smaller trees which will be harvested more frequently can be planted on internal bunds, which divide one holding into separate sections.
How to catch rainwater where it falls - An intoduction
Posted on 14 Sep, 2009 04:39 PMPerhaps you are a farmer and you want to practice good water and soil management for your crops and trees, or you own some land and you want to manage it carefully to recharge the groundwater. You may be focusing on what you can do with your own land, or wondering what your community can do, or you may even be thinking at the watershed level.
Mazhapolima - A community based well recharge programme
Posted on 04 Sep, 2009 05:34 PMWhen stakeholders come together, they can address critical water related issues.
Maps on water quality
Posted on 04 Sep, 2009 11:07 AMThe Environmental Information Centre & Maharashtra Pollution Control Board has prepared water quality monitoring maps that, at a glance, reflects the various water sources and their locations.