Impact of Different Land-Use Types on Soil Physical, Chemical and Biological Properties in Alandan Forest- Sari

Document Type : Research Paper

Authors

1 Master of Forestry, Sari Agricultural Sciences and Natural Resources University, Sari, I.R. Iran

2 Assistant Professor, Sari Agricultural Sciences and Natural Resources University, Sari, I.R. Iran

3 Associate Professor, Sari Agricultural Sciences and Natural Resources University, Sari, I.R. Iran

Abstract

Nowadays, natural ecosystems degradation and its conversion to other land uses can create
considerable changes in soil properties. The present study was conducted to investigate impact of land
use change on soil physical, chemical and biological properties in five common types of land-uses in
the mountain forest area in the north of Iran (in a part of Alandan district, Mazandaran– Sari), namely
arable land, pine plantation, ash plantation, beech stand and destructed forest stand. The soil samples
were taken from soil depths 0-10, 10-20 , 20-30 cm with using coring method (8 cm diameter) in each
site randomly (n=6). The moisture content of soil, pH, EC, bulk density, available K and Ca, organic
carbon and total N, NH4
+ and NO3
- concentration was measured in the laboratory and Net N
mineralization, net ammonification and net nitrification was calculated. Results showed significant
difference (P<0.05) in soil physical and chemical properties between different land-uses types. As, the
higher pH, available Ca, total nitrogen and ammonium were observed in ash plantation and lowest
total nitrogen, pH amount and litter decomposition rate (highest C/N ratio) was found in pine
plantation. Also, net N mineralization and ammonification were occurred just in the soil of Ash
plantation. Results of this study indicate a significant impact of different land use type on soil
properties.

Keywords


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