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Assessment of Existing Carbon Stock in Soils of Aezs in Bangladesh

Pranesh Kumar Saha
Principle Scientific Officer
Soil Science Division, BRRI Gazipur

A. T. M. Sakhawat Hossain
Senior Scientific Officer
Soil Science Division, BRRI Gazipur

M.Abdul Saleque
Principal Scientific Officer
Soil Science Division, BRRI Gazipur

Abstract/ Executive Summary:

The carbon stock of soil is decreasing with increasing soil depth irrespective of high and medium high land in both locations. But the scenario of carbon stock of soil in low land condition increased up to 10 cm soil depth at Haripur and up to 15 cm depth at Ranisankail. However, the overall carbon stock of soil in low land condition was higher than that of high and medium high land in both locations. In low land situation only Boro rice was grown but in high and medium high land situation T.Aman and Rabi crops were grown. It means the tillage operation was more in high and medium high land situation than low land condition might be the probable reason of having low soil carbon stock. On the other hand in low land situation having higher soil carbon stock may be the cause of lower elevation (deposition of top soil through run off) and comparatively longer period of submergence.

Keywords: Soil Carbon , AEZ, High land and Low land

Location: Bangladesh Rice Research Institute (BRRI), Gazipur

Start Date: 01-07-2010

End Date: 30-06-2011

Program Area: Crop-Soil-Water Management

Non-commodity: Carbon sequestration

Objectives:

To document existing carbon stock in soils of 10 AEZs in Bangladesh.

Methodology:

Survey study and soil sample collections were conducted by the Soil Science Division, Bangladesh Rice Research Institute (BRRI), Gazipur. During the reporting period BRRI had collected soil samples covering AEZs 7 (1, 2, 3, 4, 5, 6 & 10) out of 10. However, the report of AEZ-1 presented here.

Source of Information: Proceedings of BRRI Annual Internal Research Review, 2010- 2011

Article Link (Online Journal):

Funding Source:

1. Bangladesh Agricultural Research Council

Budget:

Total Budget (Tk.) :

Achievement/Findings:

It appears from the results that the carbon stock in low land soil was higher than that of high land and medium high land soil.

Knowledge Management: Report/Proceedings