Amazonian Deforestation and the Structure of Households

描述（申请人提供）：该项目涉及亚马逊流域人口与环境之间的相互关系。我们认为，不断变化的人口的家庭对土地利用的影响和生物物理环境的影响，家庭成员的生育和迁移行为的空间明确的方式。已发现若干变量在人口与环境之间起中介作用，需要详细审查这一复杂的相互关系。在这个项目中，我们将调查952户在两个相邻的研究领域，阿尔塔米拉和圣塔伦，帕拉州，巴西，使我们能够研究不仅是第一代定居者在边境（阿尔塔米拉）的行为，但也第二代和第三代动态（桑塔雷姆）。我们密集使用的Landsat卫星数字数据的时间序列从1972年到现在;地理信息系统覆盖的财产边界在该地区，允许一对一的家庭土地利用的变化，以及交通，水文和地形信息;和地理参考调查的952个家庭，审查土地利用和森林砍伐的决定和家庭的人口。该研究将涉及代际人口与环境动态，气候变化对森林砍伐选择的影响，以及农村和城市居民在土地使用和劳动力分配选择方面的差异。

DESCRIPTION (provided by applicant): This project addresses the reciprocal relationship between population and environment in the Amazon Basin. We consider the influences of the changing demography of households on land use and the influences of the biophysical environment on the fertility and migration behaviors of household members in a spatially-explicit fashion. A number of variables have been found to mediate between population and environment, requiring detailed examination of this complex, reciprocal relationship. In this project we will survey 952 households in two adjacent study areas, Altamira and Santarem, Para State, Brazil that allows us to study not just the behavior of the first generation of settlers in the frontier (Altamira) but also second and third generation dynamics (Santarem). We make intensive use of Landsat satellite digital data time series from 1972 to the present; a GIS overlay of the property boundaries in the region that permits a one-to-one relating of households to land use changes, as well as transportation, hydrologic, and topographic information; and a georeferenced survey of the 952 households that examines land use and deforestation decisions and the demography of households. The research will address intergenerational population-and-environment dynamics, the impact of climate changes on deforestation choices, and the differences in land use and labor allocation choices made by rural and urban residents.