USDA Forest Service Research Paper RM.


Book Description




Chaparral Conversion Potential in Arizona


Book Description

This research paper compares the costs of converting 139 chaparral areas to grass and maintaing the conversion over a 50-year period with the benefits to society in terms of increased water yield and forage for livestock, and reduced firefighting costs.




Range Management in the Chaparral Type and Its Ecological Basis


Book Description

Chaparral in Arizona is used far below its potential. Conversions to grass can greatly increase water and grass production, and improve wildlife habitat. Management options include conversion to grass, maintaining shrubs in a sprout stage, changing shrub composition, reseeding, and using goats to harvest shrub forage.







Vegetation Dynamics on the Mountains and Plateaus of the American Southwest


Book Description

The book provides information essential for anyone interested in the ecology of the American Southwest, including land managers, environmental planners, conservationists, ecologists and students. It is unique in its coverage of the hows and whys of dynamics (changes) in the major types of vegetation occurring on southwestern mountains and plateaus. It explains the drivers and processes of change, describes historical changes and provides conceptual models that diagrammatically illustrate past, present, and potential future changes. All major types of vegetation are covered: spruce-fir, mixed conifer, and ponderosa pine forests, pinyon-juniper vegetation, subalpine-montane grassland, and Gambel oak and interior chaparral shrublands. The focus is on vegetation that is relatively undisturbed, i.e., in natural and near-natural condition, and how it responds to natural disturbances such as fire and drought, as well as to anthropogenic disturbances such as fire exclusion and invasive species