EFFECTS OF CROPPING PATTERN ON CARBON SEQUESTRATION AND AGGREGATE STABILITY OF SOIL IN LONG TERM AGRICULTURAL FIELDS IN KHULNA, BANGLADESH

被引：0
|
作者：
Bin Salam, Md Tareq [1 ]
Sultan, Md Tipu [1 ]
Hossain, Mehjabin [1 ]
Rahman, Must Alima [2 ]
机构：
[1] Khulna Univ, Soil Water & Environm Discipline, Khulna 9208, Bangladesh
[2] Sher E Bangla Agr Univ, Agr Chem Dept, Dhaka 1207, Bangladesh
来源：
BANGLADESH JOURNAL OF BOTANY | 2021年 / 50卷 / 04期
关键词：
Soil carbon sequestration; Soil organic carbon; Aggregate stability; Carbon input; Carbon stock; ORGANIC AMENDMENTS;
D O I：
10.3329/bjb.v50i4.57069
中图分类号：
Q94 [植物学];
学科分类号：
071001 ;
摘要：
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). In terms of aggregate stability, vegetable field put the best result (0.41 mm) (p > 0.05). The straight-line relation between aggregate stability and C-stock 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.
引用
收藏
页码：1029 / 1034
页数：6
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