Journal of Natural Environment

Investigating the balance and amount of organic carbon sequestered in different parts of plants in different land uses in Behbahan city, Khuzestan province

Document Type : Research Paper

Authors

1 Department of Soil Science, Faculty of Agriculture, Shahid Chamran University of Ahvaz, Khuzestan, Iran.

2 Department of Civil Engineering, Faculty of Engineering, Technical University of Khatam-al-Anbia, Behbahan, Khuzestan, Iran.

Abstract

During photosynthesis, plants secrete atmospheric mineral carbon into their biomass, which is eventually stored in the soil through plant debris. It was used and finally the organic carbon balance was calculated. The area has three land uses, including agriculture (wheat, canola, beans and alfalfa), pasture and palm grove. From each land use, 5 plant samples in quadrats with dimensions of 1m ×1m were taken. Samples were milled and the percentage of carbon in the total plant biomass and each part of the plants (stem, leaf, and root) was calculated. The amount of gases emitted from the soil surface was also measured by a closed chamber. The results showed that the percentage of carbon in the total plant biomass of the studied land uses is significant at 99% confidence level, so that the average percentage of carbon in rapeseed, wheat and beans is the highest and in rangeland and palm crops is the lowest. Also, the percentage of carbon in different parts of plants (stem, leaf, and root) in each cultivation was performed according to a factorial experiment based on a completely randomized block design with 2 replications in SAS software. The results showed that the highest percentage of carbon was present in the stems, roots and leaves of the plants of each use, and the organic carbon balance was the highest in the agricultural use and the lowest in the pasture land use.

Keywords

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Journal of Natural Environment
Volume 76, Issue 1
May 2023
Pages 161-171