Land-sharing versus land-sparing logging: reconciling timber extraction with biodiversity conservation
Land-sharing versus land-sparing logging: reconciling timber extraction with biodiversity conservation
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DOI：
10.1111/gcb.12353
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发表时间：
2014-01-01
影响因子：
11.6
通讯作者：
Wilcove, David S.
中科院分区：
文献类型：
--
作者：
Edwards, David P.;Gilroy, James J.;Wilcove, David S.
选择性砍伐是整个热带雨林退化的主要驱动力。提出了两种相互竞争的伐木战略，以满足木材需求，同时对生物多样性的影响最小：土地共享，将木材开采与整个特许区的生物多样性保护相结合;土地节约，将更高强度的伐木与保护完整的原始森林保护相结合。我们评估这些策略，通过比较鸟类，蜣螂和蚂蚁在婆罗洲的丰度和物种丰富度，使用协议，使我们能够控制木材产量和净利润的战略。在每一个分类组，更多的物种有较高的丰度与土地保留比土地共享伐木，这转化为显着更高的物种丰富度内的土地保留特许权。我们的研究结果是相似的，当只集中在原始森林中发现的物种，并限制在范围内孙达兰，他们是独立的采样规模。对于每一个分类群体，节约土地的伐木是最有希望最大限度地发挥伐木作业的生物价值的战略。
Selective logging is a major driver of rainforest degradation across the tropics. Two competing logging strategies are proposed to meet timber demands with the least impact on biodiversity: land sharing, which combines timber extraction with biodiversity protection across the concession; and land sparing, in which higher intensity logging is combined with the protection of intact primary forest reserves. We evaluate these strategies by comparing the abundances and species richness of birds, dung beetles and ants in Borneo, using a protocol that allows us to control for both timber yield and net profit across strategies. Within each taxonomic group, more species had higher abundances with land-sparing than land-sharing logging, and this translated into significantly higher species richness within land-sparing concessions. Our results are similar when focusing only on species found in primary forest and restricted in range to Sundaland, and they are independent of the scale of sampling. For each taxonomic group, land-sparing logging was the most promising strategy for maximizing the biological value of logging operations.