ECOPERSIA
ECOPERSIA
ECOPERSIA
Basic Sciences
http://ecopersia.modares.ac.ir
1
admin
2322-2700
2538-2152
10.22034/ecopersia
en
jalali
1395
3
1
gregorian
2016
6
1
4
2
online
1
fulltext
en
Impact of Dominant Shrub Species on Soil Organic Matter Content in Dry Grassland Habitats
The effects of dominant shrub species on soil organic matter (SOM), including total soil carbon (SC), total nitrogen (N) and particulate organic matter (POM) were studied in three stands differing in the type of shrub species, i.e. <em>Astragalus microcephalus </em>(shrub), <em>Pteropyrum aucheri</em> (shrub) and <em>Prangus uloptera </em>(non-shrub).The stands were located in arid grasslands of north-western Iran. For this purpose, 18 soil samples from each stand were systematic-randomly collected (by auger) from each depth of 0-15cm and15-30cm, along 6 transect in each stand.The results showed that the stands with the highest abundance of <em>P. aucheri</em>and <em>A. microcephalus</em>had the highest values for SC (0.99% and 0.98%) in both depths, and the highest values for N (0.13% and 0.12%), respectively. The highest POM percentage for carbon (0.24%) and nitrogen (0.03%) were observed in the stands with the highest abundance of <em>A. microcephalus</em>. The proportion of micro-aggregates (28.48%) was significantly higher than macro-aggregates (20.46%) in the upper soil layer of the stand with the highest abundance of <em>A. microcephalus </em>as compared to the others, while no significant difference detected in micro- and macro-aggregate contents of the lower soil layer between the stands. Therefore, the type of shrub species in the grassland communities had important effect on soil organic matter.
Grasslands,Shrub invasion,Soil organic carbon,Vegetation type
1379
1393
http://ecopersia.modares.ac.ir/browse.php?a_code=A-24-1000-7015&slc_lang=en&sid=24
Reza
Erfanzadeh
Reza
Erfanzadeh
100319475328460063831
100319475328460063831
Yes
Associate Professor, Department of Rangeland Management, Faculty of Natural Resources, Tarbiat Modares University, Noor, Iran
Associate Professor, Department of Rangeland Management, Faculty of Natural Resources, Tarbiat Modares University, Noor, Iran
Behnam
Bahrami
Behnam
Bahrami
100319475328460063832
100319475328460063832
No
MSc. Student, Department of Rangeland Management, Faculty of Natural Resources, Tarbiat Modares University, Noor, Iran
MSc. Student, Department of Rangeland Management, Faculty of Natural Resources, Tarbiat Modares University, Noor, Iran
Javad
Motamedi
Javad
Motamedi
100319475328460063833
100319475328460063833
No
Assistant Professor, Department of Rangeland Management, Faculty of Natural Resources and Agriculture, Urmia University, Urmia, Iran
Assistant Professor, Department of Rangeland Management, Faculty of Natural Resources and Agriculture, Urmia University, Urmia, Iran
Ghasem Ali
Dianati Tilaki
Ghasem Ali
Dianati Tilaki
100319475328460063866
100319475328460063866
No
Associate Professor, Department of Rangeland Management, Faculty of Natural Resources, Tarbiat Modares University, Noor, Iran
Associate Professor, Department of Rangeland Management, Faculty of Natural Resources, Tarbiat Modares University, Noor, Iran
Mehdi
Abedi
Mehdi
Abedi
100319475328460063958
100319475328460063958
No
Assistant Professor, Department of Rangeland Management, Faculty of Natural Resources, Tarbiat Modares University, Noor, Iran
Assistant Professor, Department of Rangeland Management, Faculty of Natural Resources, Tarbiat Modares University, Noor, Iran