Assessing the Contribution of Citrus Orchards in Climate Change Mitigation through Carbon Sequestration in Sargodha District, Pakistan

Sustainability

Shafeeq Ur Rahman¹  Muhammad Ijaz¹  Sadaf Gul²  Aansa Rukya Saleem³  Ghulam Yasin⁴  Ihsan Qadir⁵  Muhammad Zubair⁵  Muhammad Farrakh Nawaz⁶  Abdur Rehim⁷  Muhammad Amjad Bashir⁷  Zhenjie Du⁸ 

[1] College of Agriculture, Bahauddin Zakariya University Multan, Bahadur Sub-Campus, Layyah 31200, Pakistan;Department of Botany, University of Karachi, Karachi 74200, Pakistan;Department of Earth and Environmental Sciences, Bahria University, Islamabad 44000, Pakistan;Department of Forestry Range Wildlife Management, The Islamia University Bahawalpur, Bahawalpur 63100, Pakistan;Department of Forestry and Range Management, FAS &T, Bahauddin Zakariya University, Multan 61000, Pakistan;Department of Forestry and Range Management, University of Agriculture Faisalabad, Faisalabad 38000, Pakistan;Department of Soil Science, Faculty of Agricultural Sciences and Technology, Bahauddin Zakariya University, Multan 60800, Pakistan;Farmland Irrigation Research Institute, Chinese Academy of Agricultural Sciences, Xinxiang 453000, China;

关键词: agroforestry;    allometric equations;    biomass;    carbon stock;    organic carbon;   

DOI  :  10.3390/su132212412

来源: DOAJ

【 摘 要 】

Adopting agroforestry practices in many developing countries is essential to combat climate change and diversify farm incomes. This study investigated the above and below-ground biomass and soil carbon of a citrus-based intercropping system in six sites (subdivisions: Bhalwal, Kot Momin, Sahiwal, Sargodha, Shahpur and Silanwali) of District Sargodha, Southeast Pakistan. Tree biomass production and carbon were assessed by allometric equations through a non-destructive approach whereas, soil carbon was estimated at 0–15 cm and 15–30 cm depths. Above and below-ground biomass differed significantly, and the maximum mean values (16.61 Mg ha⁻¹ & 4.82 Mg ha⁻¹) were computed in Shahpur due to greater tree basal diameter. Tree carbon stock fluctuated from 6.98 Mg C ha⁻¹ to 10.28 Mg C ha⁻¹ among selected study sites. The surface soil (0–15 cm) had greater bulk density, organic carbon, and soil carbon stock than the subsoil (15–30 cm) in the whole study area. The total carbon stock of the ecosystem ranged from 25.07 Mg C ha⁻¹ to 34.50 Mg C ha⁻¹ across all study sites, respectively. The above findings enable us to better understand and predict the carbon storage potential of fruit-based agroforestry systems like citrus. Moreover, measuring carbon with simple techniques can produce trustworthy outcomes that enhance the participation of underdeveloped nations in several payment initiatives such as REDD+.

【 授权许可】

Unknown