Doctoral Dissertation Research: Environmental Degradation and Agricultural Change in Western Sao Paulo, Brazil, 1900-1980

9508433-1980年威斯康星大学麦迪逊分校的论文改进研究：巴西圣保罗西部的环境退化和农业变化本论文改进研究的目的是从地方和区域空间尺度上理解人地相互作用的变化。这将通过研究特定流域的最新变化来实现，以解释定居者和小所有者如何创造、感知和反应不断变化的土壤资源。当地进程将与圣保罗和巴西S政治经济的更广泛变化有关。将进行环境分析和经验性历史研究，以确定土壤退化的社会后果。将从不同的景观位置采集土壤和河流沉积物样本，以确定沉降后的土壤流失和泥沙堆积。历史文献将被用来重建该地区的土地利用和土地保有权模式，收集的口头叙述将有助于了解人类对环境和社会变化的感知。这项研究将有助于理解人类导致的环境退化的社会影响

SBR-9508433 Carl S. Zimmerer Christian Brannstrom University of Wisconsin - Madison Dissertation Improvement Research: Environmental Degradation and Agricultural Change in Western Sao Paulo, Brazil,1900-1980 The objective of this dissertation improvement research is to understand changes in human -environment interactions from local and regional spatial scales. This will be accomplished throughthe study of recent changes in specific watersheds to explain how settlers and small-holders created, perceived, and reacted to changing soil resources. Local processes will be related to broader changes in Sao Paulo and Brazil s political economy. Environmental analysis and empirical historical research will be conducted to determine the social consequences of soil degradation. Soil and fluvial sediment samples will be taken from different landscape positions to determine post-settlement soil loss and sediment accumulation. Historical documents will be used to reconstruct patterns of land use and land tenure in the area, and collected oral narratives will help to understand human perceptions of enviro nmental and social changes. The research will contribute to understanding the social implications of human-induced environmental degradation