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Soil carbon stock in different land-use systems in the hilly terrain of Mizoram, Northeast India.

Authors :
Manpoong, Chowlani
Wapongnungsang
Tripathi, S. K.
Source :
Journal of Applied & Natural Science. 2021, Vol. 13 Issue 2, p723-728. 6p.
Publication Year :
2021

Abstract

Soil carbon is one of the most affected variables to land-use change in tropics. The soil carbon flux plays a major role in regulating microbial activities and nutrient distribution in soil. This study aimed to evaluate the soil carbon stock in various land uses at different depths in the hilly terrain of Mizoram, Northeast India. Soil samples at 0-10 cm, 10-20 cm and 20-30 cm soil depths were collected from Rubber plantation (RP), Oil palm plantation (OPP), Teak plantation (TP), Bamboo Forest (BF), 5 years fallow (5YF), 10 years fallow (10YF), Tephrosia candida plantation (TCP), Horticulture garden (HORT), Homegarden (HG) and Natural forest (NF). Soil carbon stock varied significantly (p <0.05) across the land uses and depths. The soil under Tephrosia candida stand had significantly (p <0.05) higher values of C stock (73.66 Mg ha-1) which may be due to high biomass, dense vegetative cover and high C in root exudates. The minimum C stock estimated in Horticulture garden (43.28 Mg ha-1) is probably due to reduced soil organic matter. Soil carbon stock in Homegarden, Teak plantation, Bamboo forest and Rubber plantation ranged from 46.82 Mg ha-1 to 59.34 Mg ha-1 whereas 5 years and 10 years fallow land, Natural forest and Oil palm plantation ranged from 61.35 Mg ha-1 to 73.35 Mg ha-1. The study indicated that the land use change in the mountainous region significantly affected the carbon stock in the soil. A proper land use management strategies to increase the soil organic matter is recommended to enhance the carbon stock in this region. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
09749411
Volume :
13
Issue :
2
Database :
Academic Search Index
Journal :
Journal of Applied & Natural Science
Publication Type :
Academic Journal
Accession number :
150920298
Full Text :
https://doi.org/10.31018/jans.v13i2.2615