Abstract

This study aimed to assess the carbon storage in cashew plantations in the Sudano-Sahelian zone of Cameroon. Quantification of stocks of biomass and carbon dioxide contained in agroforestry systems has become an international priority within the framework of the implementation of REDD + mechanism. Three cashew plantations were selected according to age classes (0–10 years; 10–20 years and over 20 years) in the four subdivisions (Bénoué, Faro, Mayo-Louti and Mayo-Rey). The experimental device installed is a complete random Fisher block with five repetitions. A 100 m × 20 m transect method was undertaken to assess the biomass. Allometric equations were used to assess carbon stock in biomass and laboratory analysis was used to assess soil carbon stock. Carbon stocks varied following the subdivisions and ranged from 69.29 to 96.67; 62.24 to 82.61; 59.00 to 90.64 and 66.14 to 84.03 tC/ha respectively in Bénoué, Faro, Mayo-Louti and Mayo-Rey. Soil carbon stock varied following the subdivisions and ranged from 22.03 to 30.33; 20.12 to 25.43; 19.21 to 25.73 and 21.06 to 24.51 tC/ha respectively in Bénoué, Faro, Mayo-Louti and Mayo-Rey. The highest total carbon stock was recorded in Bénoué subdivision (81.85 ± 13.55 t C/ha). The cashew plantation is actively sequestering carbon showing the potentiality to mitigate global climate change. Finally, these results are also an important economic, ecological and dynamic informative value to serve as a basis for guiding any program of action aimed at the conservation and sustainable management of this species.

摘要

这项研究旨在评估喀麦隆Sudano-Sahelian地区腰果种植园的碳储量。在实施REDD +机制的框架内，量化农林业系统所含生物量和二氧化碳的储量已成为国际优先事项。根据四个年龄段（贝努瓦，法鲁，梅奥-露蒂和梅奥-里）的年龄等级（0-10年； 10-20年和20年以上），选择了三个腰果种植园。安装的实验设备是一个完整的随机Fisher块，具有五次重复。采用100 m×20 m的样带法评估生物量。异速方程用于评估生物量中的碳储量，而实验室分析则用于评估土壤碳储量。碳储量随细分而变化，范围为69.29至96.67；62.24至82.61；59。贝努瓦，法鲁，马约-鲁蒂和马约-雷伊分别为00至90.64和66.14至84.03 tC / ha。土壤碳储量随细分而变化，范围从22.03到30.33；20.12至25.43；贝努瓦，法鲁，马约-鲁蒂和马约-雷伊分别为19.21至25.73和21.06至24.51 tC / ha。在贝努瓦（Bénoué）细分中记录到最高的总碳储量（81.85±13.55 t C / ha）。腰果种植园正在积极隔离碳，显示出缓解全球气候变化的潜力。最后，这些结果也是重要的经济，生态和动态信息价值，可作为指导旨在保护和可持续管理该物种的任何行动计划的基础。土壤碳储量随细分而变化，范围从22.03到30.33；20.12至25.43；贝努瓦，法鲁，马约-鲁蒂和马约-雷伊分别为19.21至25.73和21.06至24.51 tC / ha。在贝努瓦（Bénoué）细分中记录到最高的总碳储量（81.85±13.55 t C / ha）。腰果种植园正在积极隔离碳，显示出缓解全球气候变化的潜力。最后，这些结果也是重要的经济，生态和动态信息价值，可作为指导旨在保护和可持续管理该物种的任何行动计划的基础。土壤碳储量随细分而变化，范围从22.03至30.33；20.12至25.43；贝努瓦，法鲁，马约-鲁蒂和马约-雷伊分别为19.21至25.73和21.06至24.51 tC / ha。在贝努瓦（Bénoué）细分中记录到最高的总碳储量（81.85±13.55 t C / ha）。腰果种植园正在积极隔离碳，显示出缓解全球气候变化的潜力。最后，这些结果也是重要的经济，生态和动态信息价值，可作为指导旨在保护和可持续管理该物种的任何行动计划的基础。腰果种植园正在积极隔离碳，显示出缓解全球气候变化的潜力。最后，这些结果也是重要的经济，生态和动态信息价值，可作为指导旨在保护和可持续管理该物种的任何行动纲领的基础。腰果种植园正在积极隔离碳，显示出缓解全球气候变化的潜力。最后，这些结果也是重要的经济，生态和动态信息价值，可作为指导旨在保护和可持续管理该物种的任何行动计划的基础。