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

Carl S. Zimmerer Christian Brannstrom威斯康星大学麦迪逊分校论文改进研究：巴西圣保罗西部的环境退化和农业变化，1900-1980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与环境相互作用的变化。这将通过研究特定流域最近的变化来实现，以解释定居者和小农如何创造、感知和应对不断变化的土壤资源。地方进程将与圣保罗和巴西政治经济的更广泛变化有关。将进行环境分析和实证历史研究，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沉积物积聚。历史文献将用于重建该地区的土地使用和土地保有模式，收集的口头叙述将有助于了解人类对环境和社会变化的看法。这项研究将有助于理解人类引起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 Historical documents will be used to reconstruct patterns of land use and land tenure in the area, and collected oral narratives will help to understand human perceptions of enviro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