Land Degredation

4. the act or practice of cultivating land to an excessive degree
7. the organic component of soil, formed by the decomposition of leaves and other plant material
8. an arid area or region with low rainfall
9. the destruction of forests for lumber and other purposes
11. the supply of water to land or crops to help growth typically by means of channels
12. in which the value of the biophysical environment is affected by a combination of human-induced processes acting upon the land.
13. reduction in the number or quantity of something

1. the presence of more than one type of vegetation in an ecosystem
2. the cultivation of a single crop in a given area
3. a chemical or natural substance added to soil or land to increase its fertility
5. the clearing of natural vegetation for farming or housing
6. eroded matter which often makes up the bottom of bodies of water, usually made of rock particles
10. overexposure and use of grassland by grazing animals
14. the process of eroding or being eroded by wind, water, or other natural agents