This topic will provide an overview of rangelands, their significance, characteristics, types of rangeland resources, and the importance of managing these resources sustainably.
Introduction to Rangeland Resources
Key concepts, components, and management considerations
| Aspect | Description |
|---|---|
| Definition | Land dominated by native vegetation (grasses, forbs, shrubs, trees) that is primarily used for grazing livestock, wildlife, and other ecosystem services. |
| Typical Climate | Semi‑arid to arid; precipitation 200–800 mm yr⁻¹, with high variability. |
| Geographic Examples | Great Plains (USA), Patagonian steppe (Argentina), Australian outback, African savannas, Mongolian steppes. |
| Primary Uses | Livestock production, wildlife habitat, recreation, carbon sequestration, watershed protection, cultural values. |
| Resource | Main Attributes | Ecological Role | Economic/Social Value |
|---|---|---|---|
| Vegetation | • Grasses, forbs, shrubs, occasional trees • Seasonal growth patterns |
Primary producers; provide forage, soil stabilization, habitat structure | Source of livestock feed; forage for wildlife; raw material for honey, medicinal plants |
| Soil | • Often shallow, low organic matter • Susceptible to erosion & compaction |
Nutrient cycling, water infiltration, root anchorage | Supports plant productivity; influences water quality downstream |
| Water | • Surface water (streams, ponds) • Subsurface water (aquifers, perched water tables) |
Regulates plant growth, wildlife drinking, microbial activity | Critical for livestock watering points; affects land value |
| Wildlife | • Large herbivores (elk, antelope), predators (coyotes, wolves), birds, insects | Maintains biodiversity, pollination, seed dispersal, pest regulation | Hunting, ecotourism, cultural significance |
| Landscape Features | • Ridges, valleys, dunes, riparian corridors | Provide microclimates, refuge areas, migration pathways | Recreational trails, scenic value, cultural heritage sites |
| Cultural & Social Assets | • Indigenous knowledge, historic sites, grazing rights | Shape land‑use practices, stewardship ethic | Community identity, tourism, education |
| System | Basis of Classification | Typical Classes |
|---|---|---|
| U.S. Soil Conservation Service (SCS) Land Capability | Soil depth, texture, slope, climate, erosion potential | Classes I–VIII (I = highest capability). |
| FAO Global Ecological Zones (GEZ) | Climate, vegetation, landform | Desert, semi‑desert, steppe, savanna, montane rangeland. |
| National Resources Inventory (USDA) | Land cover |