Intro to Rangelands/Types Flashcards
What are the 5 stages of range mgmt history?
- Pre Industrial
- exploitation (i.e. range problem)
- steady state mgmt (max sustainable yield of most valued good)
- ecosystem mgmt (planning for integrated ecosystems-more diverse stakeholder feedback)
- resilience based mgmt (multiple ecosystem and services to society)
Launchbaugh’s def’n of Rangeland Mgmt
use and stewardship or rangeland resources to meet goals/desires of humans
Holecheck’s def’n of Rangeland Mgmt
manipulation of rangeland components to obtain optimum combo of goods/services for society on a sustained basis
practical def’n of Rangelenad Mgmt
planning –> implementing –> assessing –> start over…
adaptive mgmt def’n
allows us to examine different options to implement then assess for best future outcome (we decide what’s best via: tradition, wants, needs, qualitative, quantitative)
7 Types of Rangelands
- Desert
- Tundra
- Wetlands
- Savannas
- Shrublands
- Forests
- Grasslands (40%)
Cultivated Pastures vs. Range
Pasture:
cultivated to maintain vegetation
pasture has non native vegetation
irrigation/fertilization
agronomic, not ecological
Range: used land, wild open spaces, very diverse
*not all rangelands are grazed by livestock but all are grazed by something (wildlife)
4 common factors that influence rangeland
limited precipitation
sandy/saline/wet soil
steep topography
rocks
What percent globally are rangelands
47%-70% (depending on who you ask)
what percent of the US is rangeland?
36%
What percent of the west is Rangeland?
53%
What percent of MT is rangeland?
70% or 68 million acres
8 multiple uses of Rangelands
- livestock production
- recreation
- open space
- forage
- renewable energy
- water
- wildlife habitat
- cultural significance
Rangeland Challenges are…
unsustainable grazing practices
fire damage
invasive plants
climate change
human development
Difference between Grasslands/Rangelands/Drylands
Grasslands (40%) - ID by vegetation
Drylands (45%) - ID by moisture
Rangelands (47-70%) - umbrella term, land use based