Much of the water used for irrigation has a high salt and mineral content. As this water is taken in by plants or evaporates it leaves behind the salts and minerals. Eventually, the soil becomes so contaminated that it will support no plants.
the main causes for the land degradation in the punjab is theintensive cultivation.
Land degradation refers to the deterioration of the quality of land, making it less productive for agriculture, forestry, or other uses. This can be due to human activities such as deforestation, overgrazing, and improper irrigation, leading to loss of biodiversity, soil erosion, and desertification. Addressing land degradation is crucial for sustainable land management and to ensure food security and environmental health.
H. J. Maker has written: 'Soil associations and land classification for irrigation, McKinley County' -- subject(s): Classification, Irrigation, Land use, Soils 'Soil associations and land classification for irrigation, Mora County' -- subject(s): Classification, Irrigation, Land use, Soils 'Soil associations and land classification for irrigation, Socorro County' -- subject(s): Classification, Irrigation, Land use, Soils 'Soil associations and land classification for irrigation, Catron County' -- subject(s): Classification, Irrigation, Land use, Soils 'Soil associations and land classification for irrigation, Lea County' -- subject(s): Irrigation, Land use, Soils 'Soil associations and land classification for irrigation, Otero County' -- subject(s): Classification, Irrigation, Land use, Soils
Land degradation in Punjab is primarily caused by intensive agricultural practices, including overuse of chemical fertilizers and pesticides, which deplete soil nutrients and harm soil structure. Additionally, excessive groundwater extraction for irrigation has led to declining water tables and soil salinization. Urbanization and industrialization further contribute to land degradation by encroaching on arable land and increasing pollution. These factors combined threaten the long-term sustainability of Punjab's agricultural productivity.
Irrigation canals do not expand from land. They expand from water into the land.
Irrigation enhances agricultural productivity by providing a consistent water supply, enabling crops to grow in areas with insufficient rainfall. Additionally, it helps manage soil salinity and prevents land degradation, promoting sustainable farming practices and improving food security.
Roy S. Rauschkolb has written: 'Nitrogen management in irrigated agriculture' -- subject(s): Crops and nitrogen, Irrigation farming, Management, Nitrogen in agriculture 'Land degradation'
Irrigation is the artificial application of water to the land or soil.
To help slow degradation of the plastic from the ultraviolet wavelength of sunlight.
The total process of land surface reduction is called land degradation. It refers to the decline in the quality of land, including its productivity, due to various factors such as deforestation, soil erosion, and pollution. Land degradation can have negative impacts on ecosystems, agriculture, and human livelihoods.
Common causes of soil degradation include deforestation, overgrazing, agricultural practices such as excessive tilling and heavy pesticide/fertilizer use, urbanization, and industrial activities. These activities lead to soil erosion, nutrient depletion, salinization, compaction, and contamination, ultimately reducing the soil's ability to support plant growth and ecosystem functions.
Go to google images and type 'effects of land degradation' or just 'land degradation' and you should get what you want. You can also type in things like removal of topsoil & mudslides because they come under soil erosion and soil erosion. Soil erosion is a factor of land degradation. http://en.wikipedia.org/wiki/Land_degradation This website has effects of land degradation. You can also type a few of those effects in google images.