Effect of soil salinity on the distribution of plant species in arid and semi-aridEffect of soil salinity on the distribution of plant species in arid and semi-arid

Kashi Zenouzi, Leila; Banjshafee, Shahram

doi:10.22059/jrwm.2017.215624.1048

Document Type : Research Paper

Authors

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https://doi.org/10.22059/jrwm.2017.215624.1048

Abstract

This study aimed to investigate the relationship between expression of soil salinity factors and vegetation cover in Foojerd watershed. To this end, the vegetation types in the region and the formation of relatively homogeneous in terms of soil and topography, soil and vegetation were sampled by a systematic random sampling. The samples according to the area consists of homogenous units were determined. In each plot characteristics of range species and percentage of vegetation cover were recorded and soil profiles were dug. Depending on the depth of the soil profile and the depth of the roots of the plants were sampled and conductivity, exchangeable sodium, sodium absorption ratio and absorption of sodium in each of the soil samples were measured. Pearson correlation coefficient of salinity and vegetation type and percentage of vegetation cover were calculated using SPSS18.0 software. The results showed that vegetation has a negative correlation with soil salinity factors. Based on analysis of variance and Duncan were revealed that test the type of plant species were depended on soil electrical conductivity and sodium absorption rate and the percentage of canopy cover was affected by soil electrical conductivity and exchangeable sodium content. So soil sodality is the most important limiting factor to grow vegetation in Foojerd watershed.

Keywords

References

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Journal of Range and Watershed Managment

Effect of soil salinity on the distribution of plant species in arid and semi-aridEffect of soil salinity on the distribution of plant species in arid and semi-arid

References

References

Volume 70, Issue 3
December 2017
Pages 751-762

Effect of soil salinity on the distribution of plant species in arid and semi-aridEffect of soil salinity on the distribution of plant species in arid and semi-arid

References

References

Volume 70, Issue 3December 2017Pages 751-762

Volume 70, Issue 3
December 2017
Pages 751-762