Socioeconomic dimensions, migration, and deforestation: An integrated model of territorial organization for the Brazilian Amazon
Socioeconomic dimensions, migration, and deforestation: An integrated model of territorial organization for the Brazilian Amazon
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DOI：
10.1016/j.ecolind.2006.08.003
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发表时间：
2007-07-01
影响因子：
6.9
通讯作者：
Sawyer, Diana Oya
中科院分区：
文献类型：
--
作者：
Garcia, Ricardo Alexandrino;Soares-Filho, Britaldo Silveira;Sawyer, Diana Oya
巴西亚马逊地区的地域组织被理解为一个城市的社会经济网络，反映了人类住区的多样性及其对环境变化，特别是对森林砍伐的潜在影响。本文描述了巴西亚马逊地区的城市网络，通过一个模型，整合了城市的社会经济组织水平及其相互关系，通过移民运动确定。地域组织模式包括五个组成部分：（一）由城市专业服务集中所建立的中心地（极点）等级，（二）中心极点与其他中心之间的地理距离，（三）极点人口，（四）极点之间的移徙流动，（五）社会经济层面指数。这些组成部分结合成一个重力模型，以产生巴西亚马逊的社会经济市政网络的措施和地图。因此，在巴西亚马逊地区的792个城市中，有9个被列为大极点，29个被列为中极点，48个被列为微极点。这些极点的影响范围是根据三个层次来确定的。亚马逊地区网络由不受州边界限制的城市嵌套空间模式组成。社会经济空间和人口流动影响着毁林边界的流动性。这一分析为预测森林砍伐以及指导制定适合每个区域具体情况的可持续发展政策提供了见解。(C)2006爱思唯尔有限公司保留所有权利。
The territory organization of the Brazilian Amazon, understood as a socioeconomic network of municipalities, reflects the diversity of human settlements and their potentials for environmental changes, especially deforestation. This paper characterizes the urban network in the Brazilian Amazon through a model that integrates the levels of socioeconomic organization of municipalities and their interrelationships, as determined through migratory movements. The model of territorial organization combines five components: (i) the hierarchy of central places (poles) established by the concentration of urban specialized services, (ii) the geographical distance between central poles and other centers, (iii) the poles' populations, (iv) the migratory movements among them, and (v) a socioeconomic dimension index. These components are combined into a gravitational model to produce measures and maps of the socioeconomic municipality network of the Brazilian Amazon. As a result, out of 792 municipalities in the Brazilian Amazon, 9 were classified as macro-poles, 29 were classified as meso-poles and 48 as micropoles. The areas of influence of these poles were determined according to the three hierarchy levels. The Amazon region network comprises a nested spatial pattern of municipalities not constrained by the state boundaries. Socioeconomic space and population movements influence the mobility of the deforestation frontier. This analysis provides insights to predict deforestation as well as to guide formulation of sustainable development policies suitable for each region's specificity. (C) 2006 Elsevier Ltd. All rights reserved.