volume 29 issue 4 (december 2009) : 279-282
REHABILITATION OF ABANDONED AND DENUDED LAND THROUGH ENERGY PLANTATION
1Rain Forest Research Institute,
Deovan, P.Box-136, Jorhat-785 001, India.
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Agricultural Science Digest
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volume 29 issue 4 (december 2009) : 279-282
REHABILITATION OF ABANDONED AND DENUDED LAND THROUGH ENERGY PLANTATION
1Rain Forest Research Institute,
Deovan, P.Box-136, Jorhat-785 001, India.
ABSTRACT
Rehabilitation of abandoned and denuded land by plantation of multipurpose tree species
(MPT) was done at Golaghat district of Assam. Composite soil samples were collected before
plantation and after every six months from 14 non-legume and 6 legume plantation sites at three
soil depths i.e. 0-25, 25-50 and 50-100 cm. Soil physical properties showed no significant change
with chemical properties showing much variation. Five years after plantation, surface and
subsurface soil pH decreased from initial values under both legume and non-legume. While soil
organic carbon showed an increasing trend after an initial decrease in all species. Higher soil
organic carbon was recorded under non-legume than legume. Total nitrogen in soil increased
uniformly under all species. At lower depth, it showed much variation among the species.
Subsurface soils contained high amount of available phosphorous. Leguminous tree contributed
more available soil phosphorous than non-leguminous trees. Drastic decline in case of
exchangeable potassium in every plantation site was observed although it later increased.
Exchangeable Ca and Mg content decreased sharply from the initial values.
(MPT) was done at Golaghat district of Assam. Composite soil samples were collected before
plantation and after every six months from 14 non-legume and 6 legume plantation sites at three
soil depths i.e. 0-25, 25-50 and 50-100 cm. Soil physical properties showed no significant change
with chemical properties showing much variation. Five years after plantation, surface and
subsurface soil pH decreased from initial values under both legume and non-legume. While soil
organic carbon showed an increasing trend after an initial decrease in all species. Higher soil
organic carbon was recorded under non-legume than legume. Total nitrogen in soil increased
uniformly under all species. At lower depth, it showed much variation among the species.
Subsurface soils contained high amount of available phosphorous. Leguminous tree contributed
more available soil phosphorous than non-leguminous trees. Drastic decline in case of
exchangeable potassium in every plantation site was observed although it later increased.
Exchangeable Ca and Mg content decreased sharply from the initial values.
REFERENCES
- Contractor, R.M. and Badanur, V. P. (1996). J. Indian Soc. Soil Sci. 44:510- 511.
- Chavan, K.N. et al. (1995). J. Indian Soc. Soil Sci. 43:43-46.
- Das. P.K. et al. (1989). J. Indian Soc. Soil Sci. 37:164-166.
- Singh, S.B. et al. (1987). J. Indian Soc. Soil Sci 35:232-237.
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In this Article
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Published In
Agricultural Science Digest