2006-12-02 23:09:48 · 6 answers · asked by lucky c 1 in Environment
Example of Irrigation:
You are irrigating, if you add water to a potted rose plant. Farmers are doing so on large scale since Hindus valley and other older civilisations.
There are good and bad impacts. Both depends on the system used.
Good impact:
You do not have to depend on nature 100% of the time.
You can have many more crops, of various varieties in a year.
......... now you can use your imagination and come up with some more.
Bad impacts:
It is possible to avoid Them by using common sense and technology. But here are some.
Depending on the quality of water, the ground, get saturated with unwanted, substances, like calcium....... which can make ground useless for farming after few crops.
The ground can get over worked in that case soil get so poover that nothing grows in it after a while.
2006-12-02 23:33:17 · answer #1 · answered by minootoo 7 · 0⤊ 0⤋
Irrigation has been around since farming started. Orientals have been irrigating rice by building ponds for thousands of years. The second most common method is trench irrigation. Troughs are dug along rows of crops. Water from a stored source is then allowed to flow into the trenches when water is needed.
Modern farming uses pump and spray irrigation.
2006-12-03 07:16:00 · answer #2 · answered by regerugged 7 · 0⤊ 0⤋
Irrigation is very important for us humans to get enough supply of food. We have to use our available land for atleast two crops which is presently being used for only one in regions which do not have enough / good irrigation facilities.
Now every thing has its pros and cons. While irrigation is good for increasing crops and securing our future and also saving more and more forest from being cut for making farm lands it also has many negatives.
The way we are using underground water without caring of recharges it is creating water scarcity. Water table is going down and with more and more chemicals going down with water even quality of underground water is going down.
We certainly need irrigation but it should be used in a just way without wasting precious water.
2006-12-07 05:30:51 · answer #3 · answered by nature_luv 3 · 0⤊ 0⤋
Ancient Egypt could not have flourished as it did without irrigation from the Nile
2006-12-03 07:17:27 · answer #4 · answered by rdenig_male 7 · 0⤊ 0⤋
Check out the Aral Sea. It has been severely affected by irrigation. If you have Encarta then look it up, otherwise Google it.
2006-12-03 08:04:23 · answer #5 · answered by Bad bus driving wolf 6 · 0⤊ 0⤋
.There are various impacts of irrigation.
Excess water can result in water supply can result in water logging and also make the soil salty and infertile
2006-12-03 07:59:06 · answer #6 · answered by Gibran 1 · 0⤊ 0⤋