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Keyword: vegetation treatment

History of watershed research in the Central Arizona Highlands

Publications Posted on: August 01, 2018
The Central Arizona Highlands have been the focus of a wide range of research efforts designed to learn more about the effects of natural and human induced disturbances on the functioning, processes, and components of the region's ecosystems.

Burning questions for managers: Fuels management practices in riparian areas

Publications Posted on: August 29, 2012
Vegetation treatment projects for fuel reduction in riparian areas can pose distinct challenges to resource managers. Riparian areas are protected by administrative regulations, many of which are largely custodial and restrict active management. Like uplands, however, riparian areas have been affected by fire suppression, land use, and multiple types of disturbance.

Chapter 8: The future

Publications Posted on: June 12, 2009
Research in the vegetation types of the Central Arizona Highlands has evolved, for the most part, from single resource evaluations (increased water yield) to evaluations that consider the multiple benefits of vegetation management treatments. The papers presented in this publication have demonstrated that vegetation can be managed to increase water yields, while providing timber, forage, recreation, wildlife, and other amenities.

Chapter 7: Changing values of riparian ecosystems

Publications Posted on: June 12, 2009
Riparian ecosystems in the Central Arizona Highlands, and throughout the Southwest in general, provided the necessary water for humans, livestock, and agricultural crops during settlement by Europeans in the late 1800s. Other resources available in these moist environments included wildlife and fish, livestock and wildlife forage, and shade. Trees were often used for fuel, poles, and building materials.

Chapter 6: Creating a basis for watershed management in high elevation forests

Publications Posted on: June 12, 2009
Higher mountains and plateaus in the Central Arizona Highlands generally support southwestern mixed conifer forests, associated aspen and spruce-fir forests, and a small acreage of grasslands interspersed among the forested areas.

Chapter 5: Interdisciplinary land use along the Mogollon Rim

Publications Posted on: June 12, 2009
The amount of water stored in the Salt River Project reservoirs during the middle 1950s was low and, as a consequence, apprehension arose among some residents of the Salt River Valley that a serious water shortage would soon occur. Groundwater supplies in the Valley were also being rapidly depleted, and pumping costs were steadily rising.

Chapter 4: Managing chaparral in Yavapai County

Publications Posted on: June 12, 2009
Yavapai County in central Arizona supports extensive stands of chaparral in the Bradshaw Mountains, Mingus Mountain, and the Santa Maria Range. Chaparral occupies about 400,300 acres of the Prescott National Forest (Anderson 1986). These chaparral communities provide a wide range of benefits including watershed protection, grazing for wildlife and domestic animals, recreational opportunities, and wildlife habitat.

Chapter 3: Providing water and forage in the Salt-Verde River Basin

Publications Posted on: June 12, 2009
The Salt-Verde River Basin, covering about 8.4 million acres of the Central Arizona Highlands, supplies most of the water for the Salt River Valley in addition to providing other multiple use values. Mixed conifer, ponderosa pine forests, and a portion of the pinyon-juniper woodlands predominantly occupy the higher-elevation watersheds.

Chapter 2: Beginning of water studies in the Central Arizona Highlands

Publications Posted on: June 12, 2009
Water has been recognized as an important resource in central Arizona and has affected populations occupying the Salt River Valley for centuries. Water related activities have been documented since about 200 before the common era, when Hohokam Indians settled the Valley and constructed canals to irrigate their fields.

Chapter 1: Central Arizona Highlands

Publications Posted on: June 12, 2009
The Central Arizona Highlands are a distinct biogeographic, climatic, and physiographic province that forms a diverse ecotone between the larger Colorado Plateau to the north and the Sonoran Desert ecoregions to the south (figure 1). The Highlands coincide approximately with the Arizona Transition Zone identified by ecologists, geologists and others.