The document discusses water logging and salinity issues affecting agriculture in Pakistan. It states that 50% of irrigated lands in Pakistan are affected by water logging and salinity, reducing crop yields and farmer incomes. Drainage systems are needed to control water logging by allowing excess irrigation water to drain away and leach out salts. Biological controls and choosing tolerant crop species can also help reduce the impact of water logging on agricultural production.
Following slides helps the fresher to understand the aspect of water logging and salinity of the soil and their control and management strategies for sustainable agriculture
Waterlogging Types & Causes of Waterlogging Effects & its control Salinity Ef...Denish Jangid
waterlogging with figures water resource engineering by DJ sir unit 4 WRE
Water logging, effects & its control salinity, effects & its control water logging types & causes of waterlogging
Effects of waterlogging on plant growth causes of salinity effects of salinity measures to control salinity preventive measures curative measures
How to Prevention of water logging.
Water Logging: Causes, preventive and curative measures, drainage of
irrigated lands, saline and alkaline lands, types of channels lining and design
of lined channel.
In this presentation a brief description is given about salinity, types of salinity. What is water salinity and soil salinity. And also a small brief note on source of salts.
Following slides helps the fresher to understand the aspect of water logging and salinity of the soil and their control and management strategies for sustainable agriculture
Waterlogging Types & Causes of Waterlogging Effects & its control Salinity Ef...Denish Jangid
waterlogging with figures water resource engineering by DJ sir unit 4 WRE
Water logging, effects & its control salinity, effects & its control water logging types & causes of waterlogging
Effects of waterlogging on plant growth causes of salinity effects of salinity measures to control salinity preventive measures curative measures
How to Prevention of water logging.
Water Logging: Causes, preventive and curative measures, drainage of
irrigated lands, saline and alkaline lands, types of channels lining and design
of lined channel.
In this presentation a brief description is given about salinity, types of salinity. What is water salinity and soil salinity. And also a small brief note on source of salts.
Strategic Analysis on Water Resources in Pakistan.
Water Resources of Pakistan. Pakistan water resources.
Strategic Analysis of Water Resources in Pakistan.
Water logging and salinity in Pakistan is very complex and diverse topic for students ,students usually seems difficulty to find out authentic and concise material about that ,so here is very strong effort for all science students specially for Botany,zoology,chemistry and BS students,insha allah you will definitely be happy to find it out,wish you huge best of luck abluntaly.
Hello Dear,
I'm an Engineer Aamir Khasru Mohammad Chowdhury. Nick name Aryan Khasru. I'm a Civil Engineer (B.Sc In Civil Engineering). But I am also working or interested as like as Architecture, Interior Design, Exterior Design, Event Management and made Model Making Idea, Handicraft & Handmade Design Idea for Home Decorate & Life Style etc. I come from Chittagong, Bangladesh. That's all about myself.
The Formation of a particular type of soil depends upon the physico-chemical properties of the parent rock, intensity and duration of weathering, climatic and other parameters. This module highlights these aspects for a basic understanding.
Soil formation or pedogenesis is the combined effect of human impact on the environment, physical, chemical and biological processes working on soil parent material.
This presentation on "Importance of plants" in human life. There have mention all of the importance of plants for human, animals and others environments.
Thanks..
www.leadmoneymedia.com
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Strategic Analysis on Water Resources in Pakistan.
Water Resources of Pakistan. Pakistan water resources.
Strategic Analysis of Water Resources in Pakistan.
Water logging and salinity in Pakistan is very complex and diverse topic for students ,students usually seems difficulty to find out authentic and concise material about that ,so here is very strong effort for all science students specially for Botany,zoology,chemistry and BS students,insha allah you will definitely be happy to find it out,wish you huge best of luck abluntaly.
Hello Dear,
I'm an Engineer Aamir Khasru Mohammad Chowdhury. Nick name Aryan Khasru. I'm a Civil Engineer (B.Sc In Civil Engineering). But I am also working or interested as like as Architecture, Interior Design, Exterior Design, Event Management and made Model Making Idea, Handicraft & Handmade Design Idea for Home Decorate & Life Style etc. I come from Chittagong, Bangladesh. That's all about myself.
The Formation of a particular type of soil depends upon the physico-chemical properties of the parent rock, intensity and duration of weathering, climatic and other parameters. This module highlights these aspects for a basic understanding.
Soil formation or pedogenesis is the combined effect of human impact on the environment, physical, chemical and biological processes working on soil parent material.
This presentation on "Importance of plants" in human life. There have mention all of the importance of plants for human, animals and others environments.
Thanks..
www.leadmoneymedia.com
please follow me here :
https://www.behance.net/rubel570
https://plus.google.com/u/0/+MdRubelHossain570
https://www.facebook.com/rubel570
Constrains in Crop Production in saline soil & its Management.pptxSarthakMoharana
Some of the constrains in crop production in Saline soil & its Management. Salinization cause major factor which decline the soil fertility and leads to reduction of productivity of cultivable lands.
But there measures which can be taken to prevent it or rather reduce it to minimum.
Scientist are working on various techniques to prevent the Salinization problem in soil such as production of salt resistant crops, etc.
Leaching is one of the easiest method to counter this issue.
SOIL EROSION AND CONSERVATION Copy.pptxDAMINI SAHA
It is my very fast ppt presentation. I gathered all the information from internet. Hope this will helps you to understand the whole topic in simple manner.
Alkaline Soils
Clay soils with a pH of more than 8.5 are classified as alkaline soils. The higher pH is caused by high quantities of salt, magnesium, and calcium. Furthermore, hard water can cause the pH of soils to rise to alkaline proportions. On the other hand, sodium carbonate is the dominant component in alkaline soil. Therefore, alkaline soils inflate when exposed to sodium carbonate.
Saline Soils
When there is an overabundance of sodium ions in the clay and soil complex that still includes exchangeable calcium, the soil is referred to as saline soil, brown alkali soil, or white alkali soil. This soil continues to be flocculated or granulated. As a result, it has air and water permeability.
Agriculture on Saline and Alkaline Soils
Coconut trees may be found in abundance in coastal settings. In addition, as previously stated, farming salt-tolerant crops such as dhaincha, berseem, and other grain legume crops may aid in the reclamation of these soils. Moreover, some of the suitable agriculture on saline-alkaline soil is mentioned below:
Suitable Crops: Barley, Cotton, Sugar beet, Sugarcane, Rice, Mustard, Maize, Green Gram, Red Gram, Sunflower, Sesame, Linseed, Sorghum, Bajra, etc.
Suitable Vegetables: Tomato, Cauliflower, Cabbage, Cucumber, Bitter guard, Pumpkin, Spinach, etc.
Suitable Fruits: Guava, Beetroot, Asparagus, Coconut, Banana, Grape, Pomegranate, Date palm, etc.
Features of Saline and Alkaline Soils
The topsoil of Saline and Alkaline Soil is permeated (saturated or soaked with a material) with alkaline and saline efflorescences.
Weathering produces calcium salts, magnesium, sodium, and sulfurous acid from inert rock pieces.
In areas with a lower water table, salts permeate the subsurface, but in areas with high drainage, salts are washed away by running water.
Certain salts are delivered in suspension by rivers.
In places with a higher subsoil surface water, harmful salts are carried below by capillary forces during the summer months due to evaporation.
Water with a high salt content becomes stationary in places with inadequate drainage and accumulates all of the salt contents in the soil layer as it dissipates.
Alkaline and Saline Soil Areas in India
Saline and Alkaline Soil covers an area of 68,000 square kilometers. These soils are formed in canal rinsed lands and locations with a higher subsurface water table. This type of soil may be found in parts of Karnataka, Telangana, Andhra Pradesh, Uttar Pradesh, Bihar, Punjab, Haryana, Rajasthan, Punjab, and Maharashtra. However, the build-up of the salts leaves the soil unproductive and unsuited for cultivation.
The sea tides transporting salt-laden sediments damage the lands near the Khambhat Gulf of Gujarat. As a result, vast portions of the Mahi, Tapi, Narmada, and Sabarmati rivers are unproductive. When severe storms, salty sea waves invade coastal locations, rendering the soil unsuitable for farming.
This presentation deals with Watershed Management In India and areas where there is scope of development. It also talks about a solution and our urges that our approach should be based on sustainability.
Wastelands refer to degraded lands that are currently underutilized, and are deteriorating for lack of appropriate soil & water management or on account of natural causes.
Wastelands develop naturally or due to influence of environment, chemical and physical properties of the soil or management constraints.
The classification scheme adopted for monitoring of wasteland on 1:50,000 scale.
On the other hand, the Wasteland Development Board and some other institutions have considered all those categories of land as wastelands which are not under the use of forest pasture and cultivation.
From the utilization point of view, wastelands are classified as forest wasteland and non-forest wasteland, cultivated wasteland and non-cultivated wasteland .
In the wasteland classification scheme followed by Department of Land Resources, Ministry of Rural Development and National Remote Sensing Centre, Indian Space Research Organization, Department of Space, Govt. of India during 2003 for Wastelands Atlas of India 2005, 28 categories of wastelands were identified which have been now brought down to 23 categories in the wasteland classification scheme followed in 2006 for the preparation of Wastelands Atlas of India 2010.
Following thirteen categories of lands were classified under wastelands in India.
Gullied and/or ravenous land
Upland with or without scrub.
Water logged and marshy land.
Land affected by salinity/alkalinity-coastal /inland.
Shifting cultivation area.
Underutilized /degraded notified forest land.
Degraded pastures/grazing land.
Sands-deserted/coastal
Mining-industrial wastelands.
Barren rocky/stony waste/ sheet rocky area.
Steep sloping areas.
Snow covered land/or glacial area.
Degraded land under plantation crops
Similar to water logging and salinity in pakistan by Musadiq Rehmani (20)
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4. Water Logging and Salinity in
Pakistan
• Water logging represents the situation
whereby the underground water comes
on the surface of the land and in certain
cases it gathers on the ground level of
the lands and it may assume the shape of
streams.
5. Water Logging and Salinity in
Pakistan
• As a result, the lands become uncultivable. In
some cases, the underground water does not
reach the upper level of lands but remains
slightly lower and the land salts gather near
the roots of the plants such situation is called
Salinity. In this case, the sufficient amount of
water is not available for irrigation, hence the
salts are not absorbed in the land after having
mixed.
6. Water Logging and Salinity in
Pakistan
• These salts gather in the form of a layer in the
upper level of land. Thus due to water logging
and salinity the water retains itself on the
surface of land and salts gather themselves in
the zones of roots of plants. This leads to
decrease the efficiency and productivity of
lands and finally lands become uncultivable.
7.
8.
9. Effected areas
• The experts accord water logging and
salinity as a major problem of agri. sector
of Pakistan. According to an estimate the
50% of irrigated lands have been affected
by water logging and salinity, while 30 lac
acres of lands have become uncultivable.
10. Effected areas
• Again, one lac acre of land is being
affected by water logging and salinity
each year. In case of Punjab, every year
70,000 acres of lands are being affected
by water logging and salinity.
11.
12. Effected areas
• All those areas of lands which occur in
Indus Basin system like Gujranwala,
Shekupura, Faisalabad, Shapur, Jhang,
Multan, Muzafar Garh and Khairpur have
wrostly been affected by water logging
and salinity.
13.
14.
15. Effect
• Effect on farmer
Because of water logging and
salinity the agri. crops are being
affected. As a result, the
uncultivable area is increasing
along with fall in incomes of
farmers. They are becoming poor.
According to a view that the water
logging and salinity are becoming
responsible for increasing rural
inequalities.
16. Effect on farmer
• As the farmers whose land are being
affected by water logging and salinity’
they are selling their lands to big
farmers at the reduced prices. These
big farmers, on the basis of their
financial, political and social position,
improve these affected lands.
Consequently, they are becoming rich.
17. Effect on plants
• crops need air (specifically, oxygen) to a
greater or lesser depth in the soil. Water
logging of the soil stops air getting in. How
near the water table must be to the surface
for the ground to be classed as waterlogged,
varies with the purpose in view. A crop's
demand for freedom from water logging may
vary between seasons of the year, as with the
growing of rice.
18. Effect on food
• The water logging and salinity will result
in food shortages due to fall in agri.
production. As a result, agri. goods will
have to be imported having a negative
effect on our nation.
19. Effect on water
• These two menaces are also
resulting in environmental
degradation as water logging and
salinity are becoming responsible for
water pollution.
20. Effect on road
• The water logging and salinity are
also affecting the means of
transportation as it becomes difficult
to construct the roads in the affected
areas along with deterioration of
existing roads etc.
21.
22. Salinity
• Salinity is the concentration of dissolved salts
found in water. It is measured as the total
amount of dissolved salts in parts per
thousand (sometimes called PSU or Practical
Salinity Units by scientists). Ten parts per
thousand is equal to one percent.
23. salinity control
• Soil salinity control relates to
controlling the problem of soil
salinity and reclaiming Stalinized
agricultural land.
24. salinity control
• The aim of soil salinity control is to
prevent soil degradation by salivation
and reclaim already salty (saline) soils.
Soil reclamation is also called soil
improvement, rehabilitation,
remediation, recuperation, or
amelioration.
25. salinity control
• The primary man-made cause of
Stalinization is irrigation. River water or
groundwater used in irrigation contains
salts, which remain behind in the soil
after the water has evaporated.
26. salinity control
The primary method of controlling soil salinity
is to permit 10-20% of the irrigation water to
leach the soil, be drained and discharged
through an appropriate drainage system. The
salt concentration of the drainage water is
normally 5 to 10 times higher than that of the
irrigation water, thus salt export matches salt
import and it will not accumulate.
27.
28. water logging
• Water logging refers to the saturation of soil
with water. Soil may be regarded as
waterlogged when the water table of the
groundwater is too high to conveniently
permit an anticipated activity, like agriculture.
29. Control of water logging
• Biological control
A literature review was carried out on
investigations from around the world into
the effectiveness of biological drainage. The
review covers the impact of different types
of trees, bushes and crops on water table
and the control of water logging.
30. Drainage
• Drainage is usually the best way of
reducing water logging. Other
management options to reduce the
impact of water logging include:
choice of crop, seeding, fertilizer
and weed control.
31. Choice of crop species
• Some species of grains crop are more
tolerant than others. Grain legumes
and canola are generally more
susceptible to water logging than
cereals and fiber beans.
32. Choice of crop species
• Crop damage is particularly severe if plants
are waterlogged between germination and
emergence. Plant first those paddocks that are
susceptible to water logging. However, if
water logging delays emergence and reduces
cereal plant density to fewer than 50
plants/m2, reshow the crop.
33.
34. Nitrogen fertilizer
• Crops tolerate waterlogging better with a
good nitrogen status before waterlogging
occurs. Applying nitrogen at the end of a
waterlogging period can be an advantage if
nitrogen was applied at or shortly after
seeding because it avoids loss by leaching or
gentrification. However, nitrogen cannot
usually be applied from vehicles when soils
are wet, so consider aerial applications
35. Nitrogen fertilizer
• If water logging is moderate (7–30 days water
logging to the soil surface), then nitrogen
application after water logging events when
the crop is actively growing is recommended
where basal nitrogen applications were 0–
50kg N/ha. However, if water logging is severe
(greater than 30 days to the soil surface), then
the benefits of nitrogen application after
water logging are questionable.
36. Nitrogen fertilizer
• But this recommendation requires verification
in the field at a range of basal nitrogen
applications using a selection of varieties.