Across
- 4. the preservation of arid and semi-arid lands into deserts by wrong farming exercises or overgrowing
- 7. a silviculture method where most or all trees from a certain area are taken out
- 8. a higher layer of soil that holds nutrients and organic matter
- 9. any chemical that is used to destroy or manage the populations of not wanted fungi, animals or plants
- 10. the rearing of aquatic animals or the cultivation of aquatic plants for food
- 11. a process where organisms, like worms, insects and bacteria break up organic material
- 14. plants a plant that has been developing in nature in an ecosystem with any activity last or present, from humus
- 15. forestry the enduring preparation, planting and repairs of forests, trees, and green spaces in urban environments
- 16. a material that can be spread around or over a plant to improve or protect the soil
Down
- 1. wood used for construction and carpentry
- 2. profile a sequence of parallel layers of soil
- 3. a silviculture method involving taking out and cutting older trees or mature trees by themselves or in small groups every 10-20 years
- 5. an ecosystem where the main plants are trees
- 6. Rotation the exercise of planting diverse crops at altered times on the same piece of land
- 12. Product a product that has been duplicated in line with the standards defined by government of independent organizations
- 13. organic matter as the result of the breakdown of plant and animal remains