No description available.

No description available.

This study explores aspects of the development and organization of a mid-thirteenth through fourteenth-century, ancestral Hopi settlement cluster at Homol'ovi, located in the central Little Colorado River valley in north-central Arizona. The Homol'ovi cluster has been the subject of an intensive, 20-plus year program of excavation and survey by the Arizona State Museum's Homol'ovi Research Program. Homol'ovi I, an 1100-room pueblo occupied from approximately A.D. 1290 to 1400, was excavated between 1994 and 1999 and yielded deeply stratified, intact cultural deposits. The present study develops an internal, ceramic-based chronology of deposits at Homol'ovi I; establishes temporal relationships between occupational components at Homol'ovi I and other Pueblo IV period sites in the Homol'ovi cluster; and explores spatial and temporal variation in ritual activities within the Homol'ovi cluster through the lens of zooarchaeology.The Homol'ovi I chronology developed in this study is based on frequency seriation of imported Jeddito Yellow Ware pottery; stylistic, formal, and technological analysis of Jeddito Yellow Ware; ceramic cross-dating; and high-precision AMS radiocarbon dating. These dating techniques make it possible to seriate cultural deposits at Homol'ovi I, and to tie deposits from other local sites into the Homol'ovi I sequence. Additionally, some of the techniques potentially can be applied to date sites in other regions where Jeddito Yellow Ware pottery is found. This chronological research establishes a framework for tracking behavioral and organizational changes within the village of Homol'ovi I, and for situating events and processes in the life history of this community within a broader, regional context.One potential application of this chronological framework is explored through a zooarchaeological study that addresses temporal and site-to-site variation in the use and deposition of ritually sensitive categories of fauna at Homol'ovi I and other nearby villages, including Homol'ovi II, III, and IV. The fauna of interest include birds, carnivores, artiodactyls, and certain reptiles and amphibians. This study identifies a number of temporal trends that may be related to a major, late-fourteenth century reorganization of the Homol'ovi cluster and its external relations. In doing so, it lays a foundation for further research into the ritual organization of the Homol'ovi cluster.

This dissertation examines the negotiation of language ideologies and identity construction amongst university intermediate level Spanish Heritage Language (SHL) learners in the U.S. Southwest. Combining sociolinguistic and ethnographic methods with discourse analysis, this study seeks to provide deeper insight into the linguistic practices and the negotiation of language ideologies that takes place amongst SHL learners. Data from participant observation of interaction in the SHL classroom throughout the semester, questionnaires, interviews with students and instructor, and student focus group discussions were used to analyze discourses about language and the multiple values placed on English and Spanish in general, and on standard and local varieties of Spanish in particular. More specifically, this study analyzes, through the application of Bourdieu's (1991) notions of linguistic capital and symbolic power, how SHL learners negotiate these values and discourses as they study their heritage language. In addition, this study examines performances of identity observed during interactions within this group of SHL learners, recognizing the construction of multiple social identities, including bilingual, heritage learner and ethnic identities, as a dynamic and complex process that is recurrently shaped by interaction and the negotiation of competing language ideologies.

As Athapaskan-speaking people with a lifestyle distinct from other Southwestern groups, Navajos, upon entering the Southwest in the sixteenth century, are thought to have begun a process of culture change that persists to this day. The anthropological view of Navajo culture is that it is a synthesis of Athapaskan and Puebloan culture traits, and early archaeological studies of Navajo culture reinforced this view. Navajo archaeology continues to suffer from a general lack of Navajo perspectives on their own history andarchaeological record. I examine Navajo identity expressed in the built environment and the negotiation of intrusive federal Indian policies in the late nineteenth and early twentieth centuries using narratives from a ceremony called the Blessingway and theories of agency, practice, history, and structuration. Environmental, architectural, dendrochronological, artifactual, and historical data collected from 393 hogan sites recorded in the Four Corners area during the Navajo Land Claim Project in the 1950s comprise the basis for my study. Data analyses indicate that in spite of the imposition of policies designed to alter Navajo lifeways and relationships with the landscape, American colonial interactions did not dramatically alter the core of nineteenth and twentieth century Navajo culture. The dialectic between colonial policy and traditional Dine culture resulted in persistent architecture, settlement patterning, and decision making about movement over landscapes in spite of conflicts over land and water. Historically, theories and methods arising from the Western tradition have been the main avenues through which archaeologists interpret and make sense of the Indigenous past in North America. The growing body of modern literature in Indigenous archaeology now consciously includes, and often takes as its starting point, Indigenous perspectives on the past, and the practice of archaeology in America. Practitioners of Indigenous archaeology seek to strike a balance between Western perspectives and Indigenous worldviews and to increase the participation of Indigenous people in the discipline. My study is an attempt to weave together Indigenous and Western philosophies in a mutually beneficial manner.

No description available.

Agricultural land in China is being degraded, with soil erosion becoming an increasing problem. In Yunnan Province, south-west China, there is a long history of soil erosion due to soil type, climate, anthropogenic influence and because 95% of the Province is mountainous. Population pressure and lack of flat land necessitate cultivation of steep slopes. The Yunnan Government prohibits cultivation of slopes >25°, however policy enforcement would result in food shortages in the Province, due to a lack of suitable land <25°. Therefore, the most appropriate way to curb soil erosion in Yunnan is to devise affordable agronomic means of reducing soil loss, which do not decrease crop productivity on sloping land currently under cultivation. At present, very little research has addressed these issues. A research project, building on existing work from 1993-1996, was initiated in 1998. The aim was to test the hypothesis that contour cultivation and contour cultivation plus straw mulch decrease runoff and soil erosion rates on sloping land in Yunnan Province under maize cultivation and to assess the impact of these conservation measures on maize productivity and soil nutrient status. Thirty runoff plots, located on three different slope angles (I 3°, II 10° and III 27°), in three groups of 10, were used to examine three cropping treatments in a replicated plot design in 1998 and 1999. Treatments were downslope cultivation (control), contour cultivation and contour cultivation plus straw mulch. In addition, there was an unreplicated bare plot in each group. Runoff and soil loss were measured on a storm-by-storm basis. Soil nutrient status was measured at the beginning and end of each cropping season. Crop growth parameters and soil physical properties were measured throughout the cropping seasons (21/05–7/10 in 1998 and 22/05–2/10 in 1999). In 1998, seasonal rainfall was 1024 mm, ~28% greater than the 30-year mean. Soil loss was significantly reduced by contour cultivation on Slopes I and II. On Slope I, downslope cultivation produced 3.07 t ha-1 soil loss and contour cultivation reduced this by 81.4 %. On Slope II, downslope cultivation produced 19.11 t ha-1 and contour cultivation reduced this by 58.0%. The addition of straw mulch gave a further, nonsignificant, reduction on both slopes. On Slope III, downslope cultivation and contour cultivation produced 6.92 and 6.29 t ha-1 of soil loss, respectively, with contour cultivation plus straw mulch having 99.4% less erosion than downslope cultivation. In the much drier 1999 season, no treatment significantly reduced soil loss on Slope I. Contour cultivation significantly reduced soil loss on Slopes II and III. On Slope II, downslope and contour cultivation produced 11.52 t ha-1 of soil loss and contour cultivation reduced this by 85.8%. On Slope III, downslope and contour cultivation produced 8.62 and 0.23 t ha-1, respectively; a reduction of 97.3% by contour cultivation. The addition of straw mulch did not further decrease soil loss. Treatment effects on soil nutrient status varied between the two years. At the end of the 1998 season, there was significantly higher soil available N under contour cultivation plus straw mulch on all three slopes (Slopes I and II P <0.001, Slope III P <0.05), an effect that was not found in 1999. At the end of the 1999 season, soil available K was significantly (P <0.001) higher under contour cultivation plus straw mulch on Slope III. In both years, contour cultivation plus straw mulch significantly reduced soil temperature. However, this did not result in yield reductions in comparison with the control. There was an increase in soil moisture content under contour cultivation plus straw mulch during dry periods, which was particularly noticeable in 1999. In 1998, there were no significant treatment effects on grain or shoot yield. In 1999, on Slope II, contour cultivation plus straw mulch significantly increased grain yield by 50.3% compared with the downslope treatment (P <0.05). In 1999, contour cultivation plus straw mulch also significantly increased leaf plus stem yield on Slopes I and II by 12.4 and 36.8%, respectively. It is concluded that on ≤10° slopes, contour cultivation alone is a suitable soil conservation measure. However, use of straw mulch would benefit soil moisture and nutrient status and could, therefore, increase crop yield. On ≥27° slopes, it is recommended that contour cultivation plus straw mulch be used as a soil conservation measure to ensure maximum soil conservation, even in extreme rainfall conditions.

Thesis--Southwest Texas State University, 1967. / Includes bibliographical references (leaves 149-156).

Thesis (M.A.)--University of California, Dec. 1919. / Typewritten (carbon copy). Bibliography: p. 234-245.

Thesis (Ph. D.)--University of Washington, 1997. / Vita. Includes bibliographical references (leaves [238]-250).