Soil Conservation and Traditional/Sustainable Agriculture Flashcards
Soil erosion is affected by the following factors…
1) climate, 2) slope steepness, 3) type of vegetation
Methods of soil conservation
terracing, contour plowing, strip cropping, and shelterbelt
terracing
step like ridges are built and arranged sideways on a hill; slows down water erosion
contour plowing
cultivated rows run sideways, rather than up and down; slows down water erosion
strip cropping
different crops regrown on the same pice of land and rotated the next year; catches soil eroded from other crops
shelterbelt
rows of trees are planted close together to help force wind moving upward away from the ground
traditional agriculture techniques
slash and burn, clear-cutting, tillage, monoculture, fertilizer, pesticide/herbicide/insecticide
slash and burn
the cutting and burning of plants in forests or woodlands to create fields
clearcutting
most or all trees in an area are uniformly cut down
tillage
preparing a field by diffing, stirring, or overturning soil
monoculture
growing a single crop or plant species over a wide area and for many consecutive years
sustainable agriculture techniques
crop rotation, cover crops, soil enrichment, integrated pest management
crop-rotation
growing different crops in succession in the same field to replenish soil nutrients
cover crops
prevent soil erosion and suppress weeds (*dust bowl)
soil enrichment
adding a layer of manure, mulch, or compost