Soil Resources Crossword

The uppermost layer of earth's crust, which supports terrestrial plants, animals, and microorganisms
The horizontal layers into which many soils are organized, from the surface to the underlying parent material
important environmental benefits that ecosystems provide to people
The pathway of various nutrient minerals or elements from the environment through organisms and back to the environment
the wise use of soil resources, without a reduction in the amount of fertility of soil, so that it is productive for future generations
the wearing away or removal of soil from the land
The gradual accumulation of salt in a soil, often as a result of improper irrigation methods
degradation of once-fertile rangeland, agricultural land, or tropical dry forest into nonproductive desert
A method of cultivation in which residues from previous crops are left in the soil, partially covering it and helping to hold it in place until the newly planted seeds are established
the planting of a series of different crops in the same field over a period of years
plowing that matches the natural contour of the land
a row of trees planted as a windbreak to reduce soil erosion of agricultural land
concurrent use of forestry and agricultural techniques on the same land area to improve degraded soil and offer economic benefits