Exploring land cover change after prolonged droughts at the global level

Area of Science:

• Environmental Science
• Climate Science
• Geography

Background:

• Anthropogenic climate change exacerbates drought frequency and intensity.
• Droughts accelerate land degradation, impacting ecosystems and water security.
• Global impacts of prolonged droughts on land cover remain understudied.

Purpose of the Study:

• To analyze the global impact of prolonged droughts on land cover changes.
• To investigate the relationship between drought conditions and land cover dynamics.
• To explore variations in this relationship across country, income, and climatic levels.

Main Methods:

• Analysis of precipitation data to identify drought conditions (1992-2021).
• Comparison of identified drought conditions with land cover datasets.
• Examination across country, income, and climatic levels.

Main Results:

• A strong correlation exists between drought events and land cover changes.
• Low-income countries exhibit the most significant land cover alterations due to droughts.
• Trees, cropland, and sparse vegetation are most affected in drought-prone areas.

Conclusions:

• Droughts significantly alter land cover globally, with disproportionate impacts on low-income countries.
• Understanding these changes is crucial for effective water security and livelihood management.
• Proactive strategies like sustainable land management are vital for mitigation.