Question

Contour gully control of watershed management

Answer 1

Answer:

A watershed can be defined as an area demarcated by the ridgeline separating one

drainage basin from another. In other words a watershed is the drainage basin or

catchment area of a particular stream or river, and the catchment area is that from which

rainwater drains into a reservoir, pond, lake or stream. The concept of watershed as a

small unit for management and development of land and water resources was introduced

by the Ministry of Agriculture of the Govt. of India in 1974. Since then the concept has

been used for natural resource management together with judicious utilization of all

natural resources. Watershed management is an integrated technological approach carried

out within the natural boundaries of a drainage area for optimum development of land,

water and plant resources. The management of natural resources through this approach

leads to conservation of soil, increase in water retention capacity of soil, recharging of

ground water levels and increase in vegetative cover. For convenience of planning and

treatment, macro watersheds are further divided into micro and sub-micro watersheds.

The main components of watershed development include the following:

1) Soil and Water Conservation (SWC) which includes

a) Contour bunding

b) Gully plugging

c) Land leveling

d) Diversion channels

e) Drainage ditches.

2) Water Harvesting Structures (WHS) which includes

a) Check dams

b) Percolation tanks and wells

c) Direct well recharge

3) A forestation and pasture development

4) Agricultural development by introducing suitable crops and inputs for enrichment

of soil.

Answer 2

What is gully disintegration?

Gorge disintegration is the expulsion of soil along seepage lines by surface water spillover. Once began, crevasses will keep on moving by headward disintegration or by drooping of the side dividers except if steps are taken to balance out the unsettling influence.

Fix work done in the beginning times of recently framed crevasses is simpler and more conservative than releasing the issue unchecked for a really long time. Huge chasms are troublesome and expensive to fix.

Control measures:-

To be viable, gorge control should be handled in two different ways: by fixing the issues in the catchment and by settling the chasm itself.

The area of numerous provincial networks in Victoria has been dictated by the accessibility of water for use by horticulture, which at present utilize 52 percent of Victoria's water.

The dairy business -

Victoria's greatest fare worker -

depends on great quality water, utilizing it for water system of yearly and enduring fields, watering stock and cleaning dairy sheds. Great water quality is likewise fundamental for fruitful domesticated animals creation.

The key water related test confronting agribusiness is expanded challenge for the limited amount of good quality water that is accessible in Victoria.

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