Open AccessEffects of Cropping Pattern on Carbon Sequestration And Aggregate Stability of Soil in Long Term Agricultural Fields in Khulna, Bangladesh
Author(s) -
Md. Tareq Bin Salam,
Md. Tipu Sultan,
Mokter Hossain,
Masudur Rahman
Publication year - 2021
Publication title -
bangladesh journal of botany
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.152
H-Index - 17
eISSN - 2079-9926
pISSN - 0253-5416
DOI - 10.3329/bjb.v50i4.57069
Subject(s) - carbon sequestration , cropping , soil carbon , environmental science , aggregate (composite) , agriculture , carbon fibers , cropping system , agronomy , total organic carbon , soil water , mathematics , soil science , chemistry , nitrogen , environmental chemistry , biology , ecology , materials science , organic chemistry , algorithm , composite number , composite material
Effects of cropping pattern on soil carbon sequestration and their aggregate stability in long term agricultural fields was investigated in 2018. Four cropping patterns were selected that have been cultivated for last ten years. Results showed that Soil organic carbon (SOC) value was improved for vegetable field from 4.06 to 9.11 g/kg and carbon stock (20.14 Mg C ha/yr) as well as soil carbon sequestration rate was the highest in vegetable field (1.12 Mg C ha/yr). The logarithmic relationship between the C input and C sequestration rate showed the strong correlation (r = 0.72, p 0.05). The straight-line relation between aggregate stability and Cstock established that they are strongly correlated (r = 0.81, p < 0.05). Finally, results indicated that Vegetable-Vegetable-Vegetable cropping pattern was the best soil carbon sequester along with the best aggregate stability.Bangladesh J. Bot. 50(4): 1029-1034, 2021 (December)