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Glossary


A B C D E F G H I J K L M N O P Q R S T U V W X Y Z


L

Land cover

 

The physical coverage of land, usually expressed in terms of vegetation cover or lack of it. Influenced by but not synonymous with land use.

 
Land degradation

 

The loss of biological or economic productivity and complexity in croplands, pastures and woodlands. It is due mainly to climate variability and unsustainable human activity.

 
Landfills / Landfill site

 

Places like quarries and mines, used for disposing household and industrial waste, and hazardous waste.

 
Landscape

 

The patterns and structure of a specific geographic area or place, including its natural, built and socio-economic environments.

 
Land use

 

The human use of land for a certain purpose. Influenced by, but not synonymous with, land cover.

 
Leaf area index

 

The area of leaves exposed over a unit area of land surface.

 
Legume

 

Plants that fix nitrogen from the air through a symbiotic relationship with bacteria in their soil and root systems (e.g., soybean, peas, beans, lucerne, clovers).

 
Lignin

 

Complex organic material deposited within the cell walls of plants associated with cellulose, especially in wood and fibers.