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Gendered Species Preferences Link Tree Diversity and Carbon Stocks in Cacao Agroforest in Southeast Sulawesi, Indonesia

1
Soil Science Department, Faculty of Agriculture, Universitas Brawijaya, Malang 65145, Indonesia
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Plant Production Systems Group, Wageningen University and Research, 6708 PB Wageningen, The Netherlands
3
Centre for Crop Systems Analysis, Wageningen University and Research, 6708 PB Wageningen, The Netherlands
4
World Agroforestry Centre, ICRAF Southeast Asia, Bogor 16001, Indonesia
*
Author to whom correspondence should be addressed.
Land 2020, 9(4), 108; https://doi.org/10.3390/land9040108
Received: 4 March 2020 / Revised: 27 March 2020 / Accepted: 2 April 2020 / Published: 3 April 2020
(This article belongs to the Special Issue Agroforestry-Based Ecosystem Services)
The degree to which the maintenance of carbon (C) stocks and tree diversity can be jointly achieved in production landscapes is debated. C stocks in forests are decreased by logging before tree diversity is affected, while C stocks in monoculture tree plantations increase, but diversity does not. Agroforestry can break this hysteresis pattern, relevant for policies in search of synergy. We compared total C stocks and tree diversity among degraded forest, complex cacao/fruit tree agroforests, simple shade-tree cacao agroforestry, monoculture cacao, and annual crops in the Konawe District, Southeast Sulawesi, Indonesia. We evaluated farmer tree preferences and the utility value of the system for 40 farmers (male and female). The highest tree diversity (Shannon–Wiener H index 2.36) and C stocks (282 Mg C ha−1) were found in degraded forest, followed by cacao-based agroforestry systems (H index ranged from 0.58–0.93 with C stocks of 75–89 Mg ha−1). Male farmers selected timber and fruit tree species with economic benefits as shade trees, while female farmers preferred production for household needs (fruit trees and vegetables). Carbon stocks and tree diversity were positively related (R2 = 0.72). Adding data from across Indonesia (n = 102), agroforestry systems had an intermediate position between forest decline and reforestation responses. Maintaining agroforestry in the landscape allows aboveground C stocks up to 50 Mg ha−1 and reduces biodiversity loss. Agroforestry facilitates climate change mitigation and biodiversity goals to be addressed simultaneously in sustainable production landscapes. View Full-Text
Keywords: carbon storage; cacao agroforestry; farmer tree preference; utility value carbon storage; cacao agroforestry; farmer tree preference; utility value
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Sari, R.R.; Saputra, D.D.; Hairiah, K.; Rozendaal, D.M.A.; Roshetko, J.M.; van Noordwijk, M. Gendered Species Preferences Link Tree Diversity and Carbon Stocks in Cacao Agroforest in Southeast Sulawesi, Indonesia. Land 2020, 9, 108.

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