Extended families and demographic explanations for land use-cover change in the Brazilian Amazon

IF 3.2 3区 社会学 Q1 DEMOGRAPHY
Julia Corrêa Côrtes, Álvaro de Oliveira D’Antona, Stephen Perz
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Abstract

The Household Life Cycle framework relates family demographic processes to land use-cover change, but also revealed limitations. We propose several modifications, featuring a focus on extended families instead of single households, to broaden the applicability to land use systems. In the process, we pay particular attention to temporal dynamics and the spatial distribution of families concerning demographic processes, going beyond fertility to focus on population distribution. To evaluate the extended family model’s explanatory value, we apply it to the Transamazon Highway region in Brazil. The analysis includes 330 families, which are often multi-generational and multi-sited, based on data from 402 lots (1997/8–2005). We present models for forest, secondary succession, annual crops, perennials and pasture. Explanatory variables feature nine demographic factors with five others controlling for exogenous forces. The findings show strong effects for family dynamics and spatial distribution variables in many equations. Time on lot (cohort effect), the complexity of family structure (age effect) and social integration into urban fabric (spatial effect) are demographic processes that deserve further attention in land use studies.

Abstract Image

巴西亚马逊地区土地使用覆盖变化的大家庭和人口解释
家庭生命周期框架将家庭人口过程与土地利用覆盖变化联系起来,但也暴露出其局限性。我们提出了几项修改建议,重点放在大家庭而不是单个家庭上,以扩大其对土地利用系统的适用性。在此过程中,我们特别关注与人口过程有关的时间动态和家庭的空间分布,超越了生育率而关注人口分布。为了评估大家庭模型的解释价值,我们将其应用于巴西的 Transamazon 高速公路地区。根据 402 个地段(1997/8-2005 年)的数据,分析包括 330 个家庭,这些家庭通常是多代同堂和多地居住。我们提出了森林、次生演替、一年生作物、多年生植物和牧场模型。解释变量包括九个人口因素和五个控制外力的因素。研究结果表明,在许多方程中,家庭动态和空间分布变量具有很强的效应。在地块上的时间(队列效应)、家庭结构的复杂性(年龄效应)和融入城市结构的社会性(空间效应)是值得在土地利用研究中进一步关注的人口过程。
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来源期刊
CiteScore
5.80
自引率
6.10%
发文量
18
期刊介绍: Population & Environment is the sole social science journal focused on interdisciplinary research on social demographic aspects of environmental issues. The journal publishes cutting-edge research that contributes new insights on the complex, reciprocal links between human populations and the natural environment in all regions and countries of the world. Quantitative, qualitative or mixed methods contributions are welcome. Disciplines commonly represented in the journal include demography, geography, sociology, human ecology, environmental economics, public health, anthropology and environmental studies. The journal publishes original research, research brief, and review articles.
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