Agro-forestry - A land-use management system in which trees and shrubs are grown around or among crops or grazing land., Buffer zone - An area in which some human use of the forest is allowed. Buffer zones are used to protect a central conservation zone., Desertification - A process that turns areas of semi-arid grassland into desert. It is caused by drought, the removal of trees and shrubs and/or the use of unsuitable farming techniques., Ecotourism - Small-scale tourist projects that create money for conservation as well as creating local jobs., Fallow - A field left to naturally regain its nutrients after growing crops for a number of years., Gulley erosion - Narrow, V-shaped channels formed by soil erosion on poorly vegetated slopes., Monoculture - A type of agriculture (farming) in which only one crop is grown over very large areas of land., Non-renewable - Finite resources that will run out because people are using them faster than it takes for them to be formed., Sahel - A region in north-central Africa south of the Sahara Desert in an area with unreliable rainfall and drought., Renewable - Resources that are never-ending or replenish quickly enough so they can be used again and again and will not run out., Sustainable - Using ecosystems to meet people’s current and future needs without damaging the environment., Wildlife corridor - Strips of habitat that allow wild animals to move from one ecosystem to another.,

Ecosystems Key Words [2]

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