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Transmission lines are an under-acknowledged conservation threat to the Brazilian Amazon
Biological Conservation ( IF 4.9 ) Pub Date : 2018-12-01 , DOI: 10.1016/j.biocon.2018.10.027
Jacy L. Hyde , Stephanie A. Bohlman , Denis Valle

Abstract The environmental impacts of energy generation plants, especially those with large dams, have been widely discussed in the Amazon region, but little attention has been paid to the impacts of the associated transmission lines. These impacts are likely to be substantial given the wide geographic extent of the lines and the relatively high forest cover in the traversed areas. Publicly available information about the location and extent of the transmission line network in the Amazon is neither accurate nor current, and its environmental impacts on terrestrial ecosystems have not been assessed on a large scale. This study estimates the scale of the impact of the current and planned transmission and distribution line network using a hand-digitized dataset and the predicted impact area determined from Environmental Impact Assessments. The Legal Amazon region contains 39,625 km of verified transmission and distribution lines, estimated to directly impact 23,467 km2 of land. We find that the transmission line network directly impacts double the area flooded by hydroelectric reservoirs in the Legal Amazon. Of the direct impact area, 5.1% is within protected areas and 10.3% overlaps with intact forest. By 2026, the transmission line network is estimated to grow by 37% in the Legal Amazon, increasing the direct impact to forests by 70% and to protected lands by 29%. Transmission lines are impacting enough land to be considered a serious conservation threat and should be treated as such in research and environmental planning in the Amazon region.

中文翻译:

输电线路是对巴西亚马逊的一个未被充分承认的保护威胁

摘要 能源发电厂,尤其是大型水坝对环境的影响,在亚马逊地区已被广泛讨论,但对相关输电线路的影响却鲜有关注。鉴于这些线路的地理范围很广,而且所穿越地区的森林覆盖率相对较高,这些影响可能很大。关于亚马逊输电线路网络位置和范围的公开信息既不准确也不及时,并且尚未大规模评估其对陆地生态系统的环境影响。本研究使用手动数字化数据集和根据环境影响评估确定的预测影响区域来估计当前和计划中的输配电线路网络的影响规模。合法亚马逊地区包含 39,625 公里经过验证的输配电线路,估计直接影响 23,467 平方公里的土地。我们发现输电线路网络直接影响到合法亚马逊地区被水电站淹没的面积的两倍。在直接影响区域中,5.1% 位于保护区内,10.3% 与完整森林重叠。到 2026 年,预计合法亚马逊地区的输电线路网络将增长 37%,对森林的直接影响将增加 70%,对受保护土地的直接影响将增加 29%。输电线路影响的土地足以被视为严重的保护威胁,因此在亚马逊地区的研究和环境规划中应如此对待。我们发现输电线路网络直接影响到合法亚马逊地区被水电站淹没的面积的两倍。在直接影响区域中,5.1% 位于保护区内,10.3% 与完整森林重叠。到 2026 年,预计合法亚马逊地区的输电线路网络将增长 37%,对森林的直接影响将增加 70%,对受保护土地的直接影响将增加 29%。输电线路影响的土地足以被视为严重的保护威胁,因此在亚马逊地区的研究和环境规划中应如此对待。我们发现输电线路网络直接影响到合法亚马逊地区被水电站淹没的面积的两倍。在直接影响区域中,5.1% 位于保护区内,10.3% 与完整森林重叠。到 2026 年,预计合法亚马逊地区的输电线路网络将增长 37%,对森林的直接影响将增加 70%,对受保护土地的直接影响将增加 29%。输电线路影响的土地足以被视为严重的保护威胁,因此在亚马逊地区的研究和环境规划中应如此对待。据估计,合法亚马逊地区的输电线路网络将增长 37%,对森林的直接影响增加 70%,对受保护土地的直接影响增加 29%。输电线路影响的土地足以被视为严重的保护威胁,因此在亚马逊地区的研究和环境规划中应如此对待。据估计,合法亚马逊地区的输电线路网络将增长 37%,对森林的直接影响增加 70%,对受保护土地的直接影响增加 29%。输电线路影响的土地足以被视为严重的保护威胁,因此在亚马逊地区的研究和环境规划中应如此对待。
更新日期:2018-12-01
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