Effect of trees on chemical properties of soil

1. WELCOME

2. Effect Of Trees On Chemical
Properties Of Soil
Alex K George
BSF-10-002

3. MOJOR EFFECT OF TREES
Improve the soil organic carbon content
Improve nutrient recycling
Maintain soil fertility
Uniform distribution of nutrients
Increase in soil nutrient content
Maintains pH

4. SOIL PROPERTIES IN TEAK, BOMBAX AND
EUCALYPTS PLANTATIONS OF TRICHUR FOREST
DIVISION, KERALA
• soil pH, organic carbon, exchangeable bases and exchange
acidity,
• relatively low values for pH, organic carbon, exchangeable
bases and exchange acidity in teak and eucalypt (un
coppiced and coppiced) in relation to teak and bombax
plantations
• In the teak plantation, soil pH increased while organic
carbon and exchange acidity decreased with depth
• In the teak and bombax plantation, soil pH increased
whereas organic carbon and exchange acidity declined with
depth
Balagopalan. M. et al.,

5. Effect of tree plantations on the soil characteristics and
microbial activity of coal mine spoil land
• Organic carbon and total nitrogen concentrations
were higher in the plantation stands in comparison
to the bare overburdendumps.
• Available nitrogen (NO3 – N and NH4 – N) was
highest in the plots of Eucalyptus hybrid in all the
three seasons. Soil microbial biomass C, N and P
were highest in the plots of Gravellia pteridifolia
and lowest in Cassia siamea plots
• The organic carbon content was maximum in the
plots of A. auriculiformis (0.60%) and minimum in
C. siamea (0.47%) plots.
-Raman Kumar Dutta & M. Agrawal

6. Effects of Trees on Soils - Special
Supplement on Agro Forestry
• maintain soil organic matter and physical
properties;
• increase nutrient inputs, through nitrogen
fixation and uptake from deep soil horizons;
• promote more closed nutrient cycling.
Dr. Anthony Young

7. THE EFFECT OF
EUCALYPTS CAMALDULENSIS
ON SOIL PROPERTIES AND FERTILITY
• pH of both depths were alkaline. EC of the samples
ranged form 0.08 to 0.35dSm–1. The organic matter
content was low in both the depths.
• various soil properties, pH, EC, O. M., P and K
decreased with distance from the trees in the surface
soil, while in the subsoil, O.M. and P decreased with
distance pH, EC and K increased.
Syed Baber et.al.,

8. *The soil containig poplar plants get enriched with
organic carbon and minral nutrients
*Soil pH get increased as the soil depth increases
*Soil under plantation has higher amount of
available nutrient than the soil under barren area.
-Gupta and Sharma

9. THE EFFECT OF EUCALYPTUS ON CROP
PRODUCTIVITY, AND SOIL PROPERTIES IN THE KOGA
WATERSHED, WESTERN AMHARA REGION, ETHIOPIA
• Eucalyptus trees significantly affect available
phosphorus, exchangeable calcium, total nitrogen
• decreasing TN, avail. P and exch. Ca
• making soil unfertile (8%)
• Eucalyptus trees did not affect organic matter
content in the soil significantly.
• The available P content calculated was in the very
low range (< 5 mg kg-1).
-Tilashwork Chanie Alemie

10. REFERENCES
• M. Balagopalan, et, al.,199, Soil properties in teak, bombax and
eucalyptsplantations of trichur forest division, kerala, journal of tropical
forest science 5(1): 35-43 35.
• Raman kumar dutta & m. AGRAWAL, 2002, effect of tree plantations on
the soil characteristics and microbial activity of coal mine soil land, tropical
ecology 43(2): 315-324.
• Dr. Anthony young, 2002, effects of trees on soils-special supplement on
agroforestry, the natural farmer.
• Syed baber, mian furqan ahmad and amanullah bhatti, 2000 the effect of
eucalypts camaldulensis on soil properties and fertility, journal of
agricultural and biological science vol. 1, no. 3.
• Gupta.M.K and S.D. Sharma,2009, Effect of tree plantations on soil
properties, profile morphology and productivity index, Ann. For 17(1).
• Tilashwork Chanie Alemie, 2009, The effect of eucalyptus on crop
productivity, and soil properties in the koga watershed, western amhara
region, ethiopia, Cornell University.

11. THANK YOU