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In Pakistan, about 6.30 million hectares of land are salt-affected and of which 1.89 hectare is saline, 1.85 million hectare is permeable saline-sodic, 1.02 million hectare is impermeable saline-sodic and 0.028 million hectare is sodic in nature. It is estimated that out of 1.89 million hectares saline patches, 0.45 million hectares present in Punjab, 0.94 million hectares in Sindh and 0.5 million hectares in NWFP. Out of 19.3 mha area available for farming, irrigated agriculture is practised on about 16 mha. The irrigation water is mainly supplied through the worlds largest canal system arranged through dams. Intensive and continuous use of surface irrigation has altered the hydrological balance of the irrigated areas, specially Indus basin. The substantial rise in the water table has caused salinity and water logging in large areas of Sindh, Punjab, NWFP and Balochistan. The magnitude of the problem can be gauged from the fact that the area of productive land was being damaged by salinity at a rate of about 40000 hectares annually.
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How tube wells are used to treat salinated soils?
0Tubewells help treat the salinated soil by bringing down the water table as it sort of sucks up water from underground. This extra water is then flushed down the affected area. It carries the salt, which is now diluted, to canals and rivers. The area does not have a layer of salt on it anymore and the water table is also lowered to prevent salination from occuring again.
Can ghaf trees live in rainy area?
Yes, although they prefer well drained soils. Their range is through the Middle East, along the Arabian Gulf and into Pakistan and Northern India.
Saline area in Pakistan?
saline area in Pakistan
What percent of Pakistan does the Taliban control and how will that change with the February 16 truce with Pakistan?
The area around the Pakistan Afganistan border is one affected by the Taliban, but the Taliban does not actually control any part of Pakistan. Pakistan has complete control over it's country, but it is fighting against the Taliban who are trying to gain control.
If you salt a weeded area how far will it leach?
Salting a weeded area can inhibit plant growth by causing dehydration and disrupting nutrient uptake. The leaching of salt primarily depends on factors like soil type, rainfall, and irrigation, but typically, salt can migrate several inches to a few feet into the soil. In sandy soils, leaching occurs more rapidly, while clay soils retain salt longer. However, excessive salinity can lead to long-term soil degradation and affect nearby plants and ecosystems.
What are the characteristics of soil in coastal area?
Soil in coastal areas typically has high salt content due to proximity to the ocean. It may have low fertility levels due to salt accumulation, erosion, and weathering. Coastal soils are often sandy in texture, well-drained, and have a lower organic matter content compared to inland soils.
What is the area of Pakistan?
The area of Pakistan is 803,940 square km
Core area of Pakistan?
The core area of Pakistan is Punjab.
Is Pakistan in the southern area?
No, Pakistan is in the middle east.
What is the telephone area code for Nazimabad Karachi Pakistan?
The area code for Karachi, Pakistan, including Nazimabad, is +92 21. Within Pakistan, dial 021.
What is the country code and area code of Pakpattan Pakistan?
The country code and area code of Abottabad, Pakistan is 92, (0)992.
Pakistan area in miles and km?
Pakistan has a total area of 796,095 km2 / 307,374 square miles. About 3.1% of that area is water.
