Please use this identifier to cite or link to this item: http://hdl.handle.net/1893/31427
Appears in Collections:Biological and Environmental Sciences Journal Articles
Peer Review Status: Refereed
Title: Conservation set-asides improve carbon storage and support associated plant diversity in certified sustainable oil palm plantations
Author(s): Fleiss, Susannah
Waddell, Emily H
Bala Ola, Bernadus
Banin, Lindsay F
Benedick, Suzan
Bin Sailim, Azlin
Chapman, Daniel S
Jelling, Ahmad
King, Henry
McClean, Colin J
Yeong, Kok Loong
Hill, Jane K
Keywords: Climate mitigation
Conservation set-aside
Forest fragment
Oil palm
Sustainable agriculture
Tropical forest
Issue Date: Aug-2020
Citation: Fleiss S, Waddell EH, Bala Ola B, Banin LF, Benedick S, Bin Sailim A, Chapman DS, Jelling A, King H, McClean CJ, Yeong KL & Hill JK (2020) Conservation set-asides improve carbon storage and support associated plant diversity in certified sustainable oil palm plantations. Biological Conservation, 248, Art. No.: 108631. https://doi.org/10.1016/j.biocon.2020.108631
Abstract: Maintaining forest conservation set-asides is a key criterion of sustainability certification of many crops that drive tropical deforestation, but their value for carbon storage and associated biodiversity is unclear. We conducted vegetation measurements to examine the benefits of set-asides for aboveground carbon stocks (AGC) in certified oil palm plantations on Borneo, and whether their AGC is positively associated with plant diversity. The mean estimated AGC of live trees and palms ≥10 cm diameter in set-asides in certified oil palm plantations (52.8 Mg ha−1) was >1.5-times that of oil palm (30.3 Mg ha−1), with some plots supporting similar AGC to primary forest. For lowland Borneo, we estimate that the average AGC of oil palm plantations with 10% coverage of set-asides is up to 20% greater than the average AGC of oil palm plantations without set-asides, newly demonstrating carbon storage as a benefit of conservation set-asides. We found positive relationships between AGC and plant diversity, highlighting the carbon–biodiversity co-benefits of set-asides. However, set-asides had a lower density of tree seedlings than continuous primary forest, indicating potential suppression of future tree regeneration and AGC. Our findings support the application of zero-deforestation during agricultural development, to conserve areas of remaining forest with high AGC and high biodiversity. We recommend management practices that boost regeneration in existing set-asides (e.g. enrichment planting), which would be most effective in larger set-asides, and could substantially increase the AGC of agricultural landscapes without removing land from production, and help conserve forest-dependent biodiversity.
DOI Link: 10.1016/j.biocon.2020.108631
Rights: © 2020 The Author(s). Published by Elsevier Ltd. This is an open access article under the CC BY license (http://creativecommons.org/licenses/BY/4.0/).
Licence URL(s): http://creativecommons.org/licenses/by/4.0/

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