Greener Journal of Social Sciences

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Mayani et al

Greener Journal of  Social Sciences Vol. 3 (9), pp. 467-471, November 2013

  ISSN: 2276-7800 © 2011 GJSS

Research Paper

Manuscript Number: 100613888


Afforestation Effect with Conifer and Hard Wood Species on some Physical and Chemical Soil Characteristics


Nina Mayani*1, Hamid Payam2, Vahid Hemati3,

Sayed Yousef Torabiyan4


1Msc Forestry, Department of Frostry, Lahijan Branch, Islamic Azad University Lahijan, Iran.

2, 3, 4Department of Frostry, Lahijan Branch, Islamic Azad University Lahijan, Iran.


*Corresponding Author’s Email: nina.mayani @


In long periods, afforestations have great effects on the physical and chemical soil characteristics. Preserving nutritions elements density of the soil in a balanced quantity in afforestated areas in order to consider the constant development principle is necessary and considerable negative changes shouldn’t take place in soil characteristics.
This research compares the pure Pinus teada and blended local conifer afforestations on some soil characteristics in Azbarm Siyahkal area. Soil sample taking method was random-systematic and12 blended samples from hardwood afforestation and 12 blended samples also from conifer afforestations were prepared from the depth of 0 to 30 cm and were transferred to the laboratory to determine the physical and chemical parameters (including: soil tissue, special apparent and superficial mass, pH, electrical conductivity, soil saturation humidity percentage, nitrogen, phosphor, potassium. calcium). The results showed that the amount of humidity saturation percentage, Carbon ratio to nitrogen and phospher among pinus teada species, Ace insigne and Alnus substrata and Quercus castaneifolia at the confidence level of 95% is significant. The humidity saturation percentage and phospher in hardwood stand was more in comparison with conifer and Carbon ratio to nitrogen in hardwood stand was less in comparison with conifer.

Keyword: Pinus teada afforestation, local hardwood afforestation, chemical and physical characteristics, Guilan province.

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