What is land degradation and its causes?

Land degradation is the decline in the productive capacity of land due to various factors. Its primary causes include deforestation, overgrazing, unsustainable agricultural practices (e.g., excessive tilling, monoculture, overuse of chemicals), industrial pollution, improper waste disposal, urbanization, and climate change. Natural factors like droughts, floods, and wind erosion also contribute, but human activities significantly accelerate the process. It leads to reduced soil fertility, loss of biodiversity, and diminished ecosystem services.

How does land degradation affect agriculture?

Land degradation severely impacts agriculture by reducing soil fertility, organic matter, and water retention capacity. This leads to lower crop yields, increased input costs (for fertilizers and irrigation), and greater vulnerability to pests and diseases. Salinization, waterlogging, and chemical contamination render vast tracts of land unproductive, threatening food security and farmer livelihoods. It also reduces the resilience of agricultural systems to climate variability, making farming more precarious.

What are the types of land degradation?

Land degradation is broadly classified into physical, chemical, and biological types. Physical degradation includes soil erosion (by wind and water), compaction, crusting, and waterlogging. Chemical degradation involves salinization, acidification, nutrient depletion, and contamination by pollutants (pesticides, heavy metals). Biological degradation refers to the loss of soil organic matter, reduction in soil biodiversity, and decline in vegetation cover. These types often occur simultaneously and interact with each other.

How to prevent land degradation in India?

Preventing land degradation in India requires a multi-faceted approach. Key strategies include promoting sustainable land management practices like agroforestry, organic farming, contour bunding, and minimum tillage. Implementing integrated watershed development programs, afforestation drives, and strict pollution control measures are crucial. Government schemes like PMKSY, National Afforestation Programme, and policies promoting efficient water use also play a vital role. Community participation and awareness campaigns are essential for long-term success.

What is the difference between desertification and land degradation?

Land degradation is a broad term referring to any decline in land quality. Desertification is a specific form of land degradation occurring in arid, semi-arid, and dry sub-humid areas, resulting from various factors, including climatic variations and human activities. Essentially, desertification is the process by which fertile land becomes desert, typically as a result of drought, deforestation, or inappropriate agriculture. All desertification is land degradation, but not all land degradation is desertification.

Which states in India face severe land degradation?

According to ISRO's 2016-17 report, states like Rajasthan, Maharashtra, Gujarat, Karnataka, and Ladakh (UT) exhibit a high percentage of degraded land. Other states facing significant challenges include Madhya Pradesh (due to gully erosion), Punjab (waterlogging/salinization), and parts of the Northeastern states (shifting cultivation, soil erosion). The specific types and causes of degradation vary regionally, from desertification in the west to water erosion in the Himalayas and chemical degradation in intensively farmed areas.

What are the government schemes for land restoration?

Several government schemes aim at land restoration in India. Key initiatives include the Pradhan Mantri Krishi Sinchayee Yojana (PMKSY) - Watershed Development Component, National Afforestation Programme (NAP), Green India Mission, Soil Health Card Scheme, and various programs under the National Mission for Sustainable Agriculture (NMSA). These schemes focus on watershed development, afforestation, soil conservation, and promoting sustainable farming practices to reverse degradation and enhance land productivity.

How does climate change cause land degradation?

Climate change exacerbates land degradation through several mechanisms. Increased frequency and intensity of extreme weather events like droughts lead to desiccation and desertification. Heavy rainfall events intensify water erosion and landslides. Rising temperatures increase evaporation, contributing to salinization and reduced soil moisture. Changes in rainfall patterns disrupt natural vegetation, making land more vulnerable to degradation. Climate change also alters ecosystems, affecting soil biodiversity and organic matter content.

What is Land Degradation Neutrality (LDN)?

Land Degradation Neutrality (LDN) is a state where the amount and quality of land resources necessary to support ecosystem functions and services and enhance food security remain stable or increase within specified spatial and temporal scales and ecosystems. It's a concept promoted by the UNCCD, aiming to balance anticipated land degradation with land restoration. Achieving LDN involves avoiding new degradation, reducing existing degradation, and reversing past degradation through restoration efforts.

What is the role of the National Green Tribunal (NGT) in addressing land degradation?

The NGT plays a crucial role in enforcing environmental laws related to land degradation. It hears cases concerning environmental protection, including those involving industrial pollution, illegal mining, and unscientific waste disposal that lead to soil and land contamination. The NGT can issue directives, impose penalties, and order remedial actions, holding polluters accountable and ensuring compliance with environmental norms. Its expeditious disposal of cases helps in timely intervention against degradation.

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Land Degradation

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Version 1Updated 9 Mar 2026

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The Constitution of India, while not explicitly defining 'land degradation', provides a robust framework for environmental protection that implicitly covers land health. Article 48A, inserted by the 42nd Amendment in 1976, states: 'The State shall endeavour to protect and improve the environment and to safeguard the forests and wild life of the country.' This Directive Principle of State Policy ma…

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Land degradation is a critical environmental issue defined as the decline in the productive capacity of land, affecting its ability to provide essential ecosystem services. It's a multifaceted problem encompassing various forms, primarily driven by unsustainable human activities like deforestation, overgrazing, intensive agriculture, and industrial pollution, alongside natural factors such as droughts and floods.

The main types include soil erosion (by wind and water), salinization (salt accumulation), waterlogging (excess water saturation), chemical degradation (contamination by pollutants or nutrient depletion), and physical degradation (compaction, crusting, mining damage).

In India, approximately 29.32% of the total geographical area is affected, with water erosion being the dominant form. The consequences are severe, leading to reduced agricultural productivity, food insecurity, biodiversity loss, water scarcity, increased climate vulnerability, and socio-economic impacts like rural migration.

India has a robust legal framework, including Articles 48A and 51A(g) of the Constitution, the Environment (Protection) Act, 1986, and the National Green Tribunal Act, 2010, to combat this challenge. Internationally, India is committed to the UNCCD, SDG 15.

3 (Land Degradation Neutrality), and the Bonn Challenge, pledging to restore 26 million hectares of degraded land by 2030. Mitigation strategies involve sustainable land management practices, afforestation, watershed development, and strict pollution control, requiring integrated efforts from government, communities, and individuals.

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<ul><li>Land degradation: decline in productive capacity of land.</li><li>Key types: Soil erosion (water/wind), salinization, waterlogging, chemical, physical.</li><li>Causes: Deforestation, overgrazing, unsustainable agriculture, industrial pollution.

</li><li>India: ~29.32% degraded land (ISRO 2016-17).</li><li>Legal: Art 48A, 51A(g), EPA 1986, NGT Act 2010.</li><li>International: UNCCD (LDN), SDG 15.3, Bonn Challenge (India: 26 Mha by 2030).</li><li>Mnemonic: Rehabilitate, Educate, Sustain, Technology, Organize, Regulate, Empower.

RESTORE Rehabilitate degraded lands Educate communities and stakeholders Sustain through sustainable land management practices Technology for monitoring and intervention Organize integrated watershed development Regulate harmful practices and enforce laws Empower local communities and institutions

Land Degradation

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