Irrigation

Image & Content Courtesy: SANDRP

In fifteen years from 1991-92 to 2006-07 (the latest year for which figures are available), there is been absolutely no addition to net irrigated areas by canals from Major and Medium Irrigation Projects as per official data from the Union Ministry of Agriculture, based on actual field data from states. From April 1991 to March 2007, the country has spent over Rs 130 000 crores on Major and Medium Irrigation Projects with the objective of increasing canal irrigated areas.But the official data shows that this whole expenditure of over Rs 130 000 crore has not led to addition of a single ha in the net irrigated area by canals in the country for the whole of this fifteen year period. In fact the areas irrigated by such projects have reduced by a massive 2.44 million ha during this period.

This status report prepared by Development Alternatives contains brief background information about the Bundelkhand region, details about the physical profle (topography, drainage and river systems, land usage, climate, rainfall), water resources information (water demand, availability, supply and accessibility) and information on sanitation practices (toilets, personal  hygiene, solid waste management, liquid waste disposal, availability of water for sanitation).

- State government promises 5.6 lakh hectares more land under irrigation in the next 5 years.

 All the above papers and more resources on this subject, are available at this link: http://groups.google.co.in/group/irrigation-power-energy/files?hl=en

Are Pumped Storage Schemes Beneficial For Harnessing The Krishna River Water Further (1995)

These 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.

Bunds 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.

In places where the land is too degraded for agriculture and the soil is too shallow for bunding, rocks can be used to protect existing stumps from browsing and allow regeneration. Rock fences can also be used to protect areas planted with fodder species. Hardy, drought tolerant trees such as neem, tamarind, custard apple, acacia, and eucalyptus can be planted.

It is similar to drip irrigation, but less expensive to install. The pitchers are the round earthen containers used in rural areas for water storage, ranging from 10 to 20 liters in capacity. This kind of irrigation is ideal for spreading plants such as gourd, pumpkin, and melon because few pitchers are needed per unit area. It is also very good irrigation for saplings, promoting deep root growth.

Soil and water conservation measures consist of agronomical and mechanical methods. Agronomic methods are supported with mechanical measures where land slope exceeds permissible limits and runoff gains erosive velocities.

The following boxes explain the nature of agronomic measures which are essential in inter-bunded or terraced areas. These practices enhance the utility value of all kinds of mechanical structures.

 Perhaps 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.