A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Natural Vegetation of Casa Grande Ruins National Monument, Arizona
The report presents the results of a survey of the abiotic environment and natural vegetation of Casa Grande Ruins National Monument. The monument is located on a desert plain in the Gila River basin in south-central Arizona that has been irrigated by both prehistoric peoples and modern man. The monument itself has not been cultivated in modern times and thus represents a landmark of comparison with the surrounding agricultural landscape. Permanent vegetation monitoring plots were established, and a checklist of native and naturalized non-cultivated plants was produced as a baseline for future studies of vegetation change. Plantings near the visitor center were not inventoried. A comparison of vegetation on the monument through matched historic and recent photographs shows that composition of vegetation has not changed significantly; however, the same plant species have redistributed over time. The most significant change is the reduction of mesquite (Prosopis velutina) trees, attributed to the drastically lowered groundwater levels during the century.
Natural Vegetation of Casa Grande Ruins National Monument, Arizona
The report presents the results of a survey of the abiotic environment and natural vegetation of Casa Grande Ruins National Monument. The monument is located on a desert plain in the Gila River basin in south-central Arizona that has been irrigated by both prehistoric peoples and modern man. The monument itself has not been cultivated in modern times and thus represents a landmark of comparison with the surrounding agricultural landscape. Permanent vegetation monitoring plots were established, and a checklist of native and naturalized non-cultivated plants was produced as a baseline for future studies of vegetation change. Plantings near the visitor center were not inventoried. A comparison of vegetation on the monument through matched historic and recent photographs shows that composition of vegetation has not changed significantly; however, the same plant species have redistributed over time. The most significant change is the reduction of mesquite (Prosopis velutina) trees, attributed to the drastically lowered groundwater levels during the century.
Natural Vegetation of Casa Grande Ruins National Monument, Arizona
K. Reichhardt (author)
1992
66 pages
Report
No indication
English
Education, Law, & Humanities , Botany , Vegetation , Gila River Basin , Monuments , Surveys , Deserts , Plains , Land use , Planting , Monitoring , Comparison , Anthropology , History , Ecology , Photographs , Arizona , Casa Grande Ruins National Monument , Prosopis Velutina , Mesquite trees , Larrea tridentata , Creosota bush
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