Mixed plantations composed of Eucalyptus intercropped with a high diversity of native tree species are a promising option for combining biodiversity recovery with wood production during forest landscape restoration. The viability of this approach relies not only on its potential to offset implementation costs but also on the capacity of native trees to perform well when intercropped with Eucalyptus. We investigated competition for light and nutrients in these mixed plantations in the Atlantic Forest of Brazil. We compared (1) Eucalyptus monocultures, (2) plantations composed of native species for restoration, and (3) mixed plantations intercropping Eucalyptus with native tree species, in which Eucalyptus replaced native pioneers. We found no evidence of competition for nutrients or facilitation. Native species plots intercepted more Photosynthetically Active Radiation than Eucalyptus monocultures or mixtures. Our results add to the previous studies on these experiments and altogether suggest that well-managed mixed plantations of Eucalyptus and a high diversity of native tree species are a viable silvicultural solution for offsetting the costs of forest landscape restoration in the tropics.

在森林景观恢复过程中，由桉树与多种多样的原生树种组成的混合人工林是将生物多样性恢复与木材生产结合起来的有前途的选择。这种方法的可行性不仅取决于其抵消实施成本的潜力，还取决于与桉树套种时本地树的良好性能。我们调查了巴西大西洋森林中这些人工林中光和养分的竞争。我们比较了（1）桉树单一文化，（2）由本地物种组成的人工林以进行恢复，以及（3）间作种植桉树与本地树种的混合人工林，其中桉树取代了本地先驱。我们没有发现竞争营养或促进作用的证据。与桉树单一栽培或混合栽培相比，本地物种所截获的光合作用活性辐射更多。我们的结果增加了对这些实验的先前研究，并总体表明，管理良好的桉树混合人工林和高度多样性的本地树种是抵消热带地区森林景观恢复成本的可行造林解决方案。