Enhancing the ecological value of oil palm agriculture through set-asides
Enhancing the ecological value of oil palm agriculture through set-asides
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DOI：
10.1038/s41893-022-01049-6
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发表时间：
2023-02-06
影响因子：
27.6
通讯作者：
Davies, Zoe G.
中科院分区：
文献类型：
--
作者：
Bicknell, Jake E.;O'Hanley, Jesse R.;Davies, Zoe G.
农业扩张是整个热带地区生态退化的主要驱动力。农业景观中未开垦的部分，通常是在陡坡上和河边，可能会减轻环境影响，但会减少耕地面积。在这里，我们模拟了一种方法来配置设置，旨在优化生态结果（生物多样性，地上碳储存和养分循环），而不减少净种植面积。我们比较设置asides在油棕景观中，所有种植园采用相同的配置（“统一”的方法）的情况下，种植园之间的配置（“可变”的方法）可以有变化。我们发现，所有预留配置支持大量的生态价值，但最好的策略涉及设置，特别是沿河流，这是空间上有针对性的和可变的种植园。这种“可变”的方法可以增加生态结果的两倍以上的“统一”的方法，而不减少净种植面积。我们的研究结果强调了精心策划的调整对提高农业可持续性的潜在重要性。农业是热带生态系统的最大威胁。这项研究发现，有针对性地为自然留出土地，特别是在河流沿岸，可以增加生物多样性和生态系统服务，而不会减少净耕地面积。
Agricultural expansion is the primary driver of ecological degradation across the tropics. Set-asides-uncultivated parts of agricultural landscapes, often on steep slopes and alongside rivers-may alleviate environmental impacts but can reduce the area cultivated. Here we model an approach to configuring set-asides aimed at optimizing ecological outcomes (biodiversity, above-ground carbon storage and nutrient cycling) without reducing net cultivation area. We compare set-asides in an oil palm landscape where all plantations adopt the same configuration ('uniform' approach) with a scenario where there can be variation in configuration among plantations ('variable' approach). We find that all set-aside configurations support substantial ecological values but that the best strategies involve set-asides, particularly alongside rivers, that are spatially targeted and variable among plantations. This 'variable' approach can increase ecological outcomes twofold over the 'uniform' approach without reducing net cultivation area. Our findings underscore the potential importance of well-planned set-asides for enhancing agricultural sustainability.Agriculture is the largest threat to tropical ecosystems. This study finds that setting aside land for nature in targeted fashion, especially alongside rivers, can increase biodiversity and ecosystem services without reducing the net area cultivated.