Climate On Drylands Flashcards
What is the main factor influencing the distribution and characteristics of dryland landscapes?
Climate
True or False: Dryland landscapes are defined by their high levels of precipitation.
False
What type of climate is typically associated with dryland landscapes?
Arid or semi-arid climate
What is the primary control on the type and extent of vegetation in dryland landscapes?
Water availability
What term refers to the process by which dryland landscapes experience long-term reductions in water availability?
Desertification
True or False: Dryland landscapes cover approximately 40% of the Earth’s land surface.
True
What is the term for the process by which dryland landscapes become less productive over time?
Land degradation
What are some common features of dryland landscapes?
Sparse vegetation, erosion, and high temperatures
What is the term for the soil and water conservation practice used in dryland landscapes to retain moisture and reduce erosion?
Terracing
How does climate change impact dryland landscapes?
By altering precipitation patterns and increasing temperatures
What are some potential consequences of climate change on dryland landscapes?
Increased desertification, decreased water availability, and loss of biodiversity
What is the term for the process by which dryland landscapes lose their ability to support vegetation?
Degradation
What are some strategies for sustainable management of dryland landscapes?
Water conservation, reforestation, and sustainable agriculture practices
How can human activities contribute to land degradation in dryland landscapes?
Through overgrazing, deforestation, and improper irrigation practices
What role do local communities play in the conservation of dryland landscapes?
They are key stakeholders in sustainable land management and conservation efforts
What are some potential solutions to combat desertification in dryland landscapes?
Afforestation, sustainable land management, and soil conservation practices
What is the term for the process of restoring degraded dryland landscapes to their natural state?
Rehabilitation
How does vegetation cover impact the resilience of dryland landscapes to climate change?
Vegetation cover can enhance water retention and soil stability, increasing resilience
What is the term for the process of converting dryland landscapes into more productive land for agriculture?
Reclamation
What is the primary challenge in managing dryland landscapes sustainably?
Balancing resource use with conservation to prevent degradation
What are some key indicators of land degradation in dryland landscapes?
Loss of vegetation, soil erosion, and decreased water availability
How can sustainable land management practices benefit dryland landscapes?
By improving soil fertility, reducing erosion, and enhancing water availability
What is the term for the process by which dryland landscapes lose their ability to support vegetation?
Land degradation
What role do traditional knowledge and practices play in the sustainable management of dryland landscapes?
They can inform effective and sustainable land management strategies