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There are many positive impacts of irrigation on the environment. Among the negative impacts which appear in the mentioned spheres prevalent impacts is the danger of waterlogging and salinization of soils and waters, rise in groundwater table, spread of water born diseases, pollution of waters and many others.
- What are some positive impacts of irrigation?
- What are the positive impact of irrigation on human environment?
- What is irrigation and its effects?
- What are the negative effects of irrigation?
- Which one of the following is a negative impact of over-irrigation?
- What is a bad consequence of irrigation with groundwater regarding its water quality?
- How does irrigation affect water quality?
- What is the effect of irrigation on the environment?
- How does irrigation affect agriculture?
- How does irrigation affect the economy?
- How does irrigation affect food production?
- How does irrigation affect aquifers?
- Why irrigation is important in the economy of any country?
- What is the role of irrigation development in the economy of the Philippines?
What are some positive impacts of irrigation?
Irrigation has contributed significantly to poverty alleviation, food security, and improving the quality of life for rural populations. However, the sustainability of irrigated agriculture is being questioned, both economically and environmentally.
What are the positive impact of irrigation on human environment?
Hydrological or direct effects of doing this include reduction in downstream river flow, increased evaporation in the irrigated area, increased level in the water table as the ground water recharge in the area is increased and flow increase in the irrigated areas Likewise irrigation has immediate impact on the ...
What is irrigation and its effects?
An irrigation scheme often draws water from the river and distributes it over the irrigated area. As a hydrological result it is found that: the downstream river discharge is reduced. the evaporation in the scheme is increased. the groundwater recharge in the scheme is increased.
What are the negative effects of irrigation?
There are many positive impacts of irrigation on the environment. Among the negative impacts which appear in the mentioned spheres prevalent impacts is the danger of waterlogging and salinization of soils and waters, rise in groundwater table, spread of water born diseases, pollution of waters and many others.
Which one of the following is a negative impact of over-irrigation?
Answer: Over-irrigation leads to water loss, increases energy use for pumping, causes leaching of nitrogen and other micro nutrients, and wastes time. Crop nitrogen needs, fertilizer costs, and nitrogen losses to groundwater also result from over-irrigation.
What is a bad consequence of irrigation with groundwater regarding its water quality?
Owing to drainage of surface and groundwater in the project area, which waters may be salinized and polluted by agricultural chemicals like biocides and fertilizers, the quality of the river water below the project area can deteriorate, which makes it less fit for industrial, municipal and household use.
How does irrigation affect water quality?
Excessive irrigation can affect water quality by causing erosion, transporting nutrients, pesticides, and heavy metals, or decreasing the amount of water that flows naturally in streams and rivers. It can also cause a buildup of selenium, a toxic metal that can harm waterfowl reproduction.
What is the effect of irrigation on the environment?
Irrigation, even with water of high quality, often represents a large increase in the amount of water which would pass through a soil profile under natural conditions and has the capacity to accelerate mineral weathering, to transport and leach soluble and colloidal material, to change soil structure and to raise the ...
How does irrigation affect agriculture?
In areas that have irregular precipitation, irrigation improves crop growth and quality. By allowing farmers to grow crops on a consistent schedule, irrigation also creates more reliable food supplies. ... Modern irrigation systems use reservoirs, tanks, and wells to supply water for crops.
How does irrigation affect the economy?
The economic value created by irrigated agriculture will continue to grow as the world works to double agricultural output between now and 2050. Investments in efficient irrigation products, technology and services also lead to significant cost savings associated with water use for consumers.
How does irrigation affect food production?
Irrigation allows you to: grow more pastures and crops. ... produce higher quality crops/pastures as water stress can dramatically impact on the quality of farm produce. lengthen the growing season (or start the season at an earlier time)
How does irrigation affect aquifers?
This is particularly true in many alluvial aquifers in arid regions where much of the irrigated land is in valleys. ... To prevent excessive buildup of salts in the soil, irrigation water in excess of the needs of the crops is required to dissolve and flush out the salts and transport them to the ground-water system.
Why irrigation is important in the economy of any country?
Land irrigation improves the water−salt balance of the soil and sustains its economic fertility. Irrigation farming involves a higher level of agricultural production standards, as compared to dry farming. ... Therefore, the economics of IS is closely related to the economics of water management and agriculture.
What is the role of irrigation development in the economy of the Philippines?
It raises land productivity by providing sufficient water to crops to increase yield and ensure the stability of production, even under extreme weather conditions.
