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农艺学或有争议的土地变化?来自巴西东部亚马逊地区的纵向分析。

Agronomic or contentious land change? A longitudinal analysis from the Eastern Brazilian Amazon.

机构信息

Department of Earth and Environmental Systems, Indiana State University, Terre Haute, IN, United States of America.

Department of Geography, University of Florida, Gainesville, FL, United States of America.

出版信息

PLoS One. 2020 Jan 27;15(1):e0227378. doi: 10.1371/journal.pone.0227378. eCollection 2020.

Abstract

Since 1984, nearly 1,000 people have been killed in the Brazilian Amazon due to land conflicts stemming from unequal distribution of land, land tenure insecurity, and lawlessness. During this same period, the region experienced almost complete deforestation (< 8% forest cover by 2010). Land conflict exacts a human toll, but it also affects agents' decisions about land use, the subject of this article. Using a property-level panel dataset covering the period of redemocratization in Brazil (1984) until the privatization of long-term leases in the Eastern Amazon (2010), we show that deforestation is affected by land conflict, particularly in cases of expropriation of property for agrarian reform settlement formation and when that conflict involves fatalities. Deforestation on agrarian reform settlements is much greater when soils are poor for agriculture and when the land has been the object of past conflict. Deforestation and conflict are episodic, and both agronomic drivers and contentious drivers of land change are active in the region. Ultimately, the outcome of these processes of contentious and agronomic land change is substantial deforestation, regardless of who was in possession and control of the land.

摘要

自 1984 年以来,由于土地分配不均、土地保有权无保障和无法无天,巴西亚马逊地区已有近 1000 人因土地冲突而死亡。在此期间,该地区经历了几乎完全的森林砍伐(到 2010 年森林覆盖率不到 8%)。土地冲突不仅造成了人员伤亡,还影响了利益相关者的土地利用决策,这也是本文的主题。本文使用了一个涵盖巴西民主化时期(1984 年)到亚马逊东部长期租约私有化时期(2010 年)的财产层面面板数据集,结果表明,土地冲突会影响森林砍伐,特别是在为土地改革安置而没收财产以及土地冲突涉及死亡的情况下。在农业改革安置点上的森林砍伐量更大,当土壤不利于农业生产,且土地曾发生过冲突时。森林砍伐和冲突是周期性的,土地变化的农业驱动因素和争议驱动因素在该地区都很活跃。最终,无论谁拥有和控制土地,这些有争议和农业土地变化的过程都会导致大量的森林砍伐。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/3451/6984708/6305c1573565/pone.0227378.g001.jpg

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