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2022-03-04
摘要翻译:
热带地区的森林退化往往与为选择性伐木而修建的道路有关。保护公路无法到达的完整森林景观是生物多样性保护议程上的一项重要内容,这是森林管理委员会(FSC)认证的伐木特许权面临的一项挑战。一个经常提倡的保护目标是最大限度地保留“无路空间”,这个概念是基于从任何一点到最近道路的距离。我们开发了一种新的空空间函数--一种基于随机几何和随机集理论的通用统计工具--来计算刚果盆地部分地区的无路空间,那里的道路网络最近迅速扩大。我们比较了2000年被宣布为IFL的地区内外有证和无证伐木特许区无道路空间的时间发展情况。1999年至2007年间,快速的道路网络扩张导致了IFL无路空间的明显损失。2007年后,由于新建道路和重新植被的废弃道路之间的平衡,这一轨迹在大多数地区变平了。然而,自2007年左右以来,FSC认证的IFL内的特许权显示无路空间持续减少,因此达到了与所有其他特许权相当的水平。只有国家公园仍然没有道路。我们建议森林管理政策通过有效监测----和限制----可永久通行的道路对空间的占用,将保护大片相连的森林地区作为最高优先事项。
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英文标题:
《Roadless space is greatly diminished by logging in intact forest
  landscapes of the Congo Basin》
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作者:
Fritz Kleinschroth, John R. Healey, Sylvie Gourlet-Fleury, Frederic
  Mortier, Radu S. Stoica
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最新提交年份:
2016
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分类信息:

一级分类:Quantitative Biology        数量生物学
二级分类:Other Quantitative Biology        其他定量生物学
分类描述:Work in quantitative biology that does not fit into the other q-bio classifications
不适合其他q-bio分类的定量生物学工作
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英文摘要:
  Forest degradation in the tropics is often associated with roads built for selective logging. The protection of Intact Forest Landscapes (IFL) that are not accessible by roads is high on the biodiversity conservation agenda, a challenge for logging concessions certified by the Forest Stewardship Council (FSC). A frequently advocated conservation objective is to maximise the retention of "roadless space", a concept that is based on distance to the nearest road from any point. We developed a novel use of the empty space function - a general statistical tool based on stochastic geometry and random sets theory - to calculate roadless space in a part of the Congo Basin where there has recently been rapid expansion of road networks. We compared the temporal development of roadless space in certified and non-certified logging concessions inside and outside areas declared as IFL in the year 2000. Between 1999 and 2007, rapid road network expansion led to a marked loss of roadless space in IFL. After 2007, this trajectory levelled out in most areas, due to an equilibrium between newly built roads and abandoned roads that became revegetated. However, concessions within IFL that have been certified by FSC since around 2007 showed continued decreases in roadless space, thus reaching a level comparable to all other concessions. Only national parks remained road-free. We recommend that forest management policies make the preservation of large connected forest areas a top priority by effectively monitoring - and limiting - the occupation of space by roads that are permanently accessible.
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PDF链接:
https://arxiv.org/pdf/1602.01436
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