Chapter 13 Rangeland Management Flashcards
What are the types of rangelands?
grasslands, tropical savannas, tundra, desert shrublands, shrub woodlands, temperate forests, tropical forests.
occuur in temperate regions and are made up of a mixture of grasses and some forbs, typically free of trees or shrubs. develop in areas with 25-75cm of annual rainfall
grasslands
occur mostly in Africa, none in US, mixture of grasses, shrubs, and scattered trees.
tropical savanna
found in very cold areas in the Arctic or as meadows at high mountain elevations, uses mostly by wild animals
tundra
largest area of the world’s grasslands, have an arid climate less than 25cm rainfall, poorly developed soils and sparse vegetation dominated by low growing shrubs
desert shrublands
same rainfall belt as grasslands, but have low growing trees and dense shrubs for vegetation
shrub woodlands
naturally occuring open stands, areas with with plenty of open sunny land for grasses to grow, timber cutting opens up for grasses to grow
temperate forests
provide little vegetation under their dense canopies and are of little relative importance to grazing
tropical forests
the first federal effort to regulate grazing on federal public lands. The Act establishes grazing districts and uses a permitting system to manage livestock grazing in the districts in order to improve rangeland conditions and regulate their use.
Taylor Grazing Act 1934
what does the Taylor Grazing Act do?
establish grazing districts of vacant, unappropriated and unreserved land from any parts of the public domain and which are valuable chiefly for grazing and raising forage crops
responsible for protecting, administering, regulating, and improving of the grazing districts
to preserve the land and resources from destruction or unnecessary injury, and provide for orderly improvement and development of the range
Nutritious, tasty, decrease w little grazing pressure
Decreasers
Nutritious, less tasty, increase w moderate grazing
Increasers
Not very nutritious, unappealing, even poisonous or harmful
Invaders
the maximum number of animals that can graze each year on a given area of range, for a specific number of days without causing a downward trend in forage production, quality, or or soil quality.
Grazing carrying capacity
continued heavy grazing that exceeds the carrying capacity of the community and results in a deteriorated range
overgrazing