Comparison of NDVI and SAVI in three plant communities with different sampling intensity  (Case Study: Choghakhour Lake Rangelands in Charmahal & Bakhtiri)

Imani, Jamal; Ebrahimi, Ataollah; Gholonejad, Bahram; Tahmasebi, Pezhman

doi:10.22092/ijrdr.2018.116233

Document Type : Research Paper

Authors

¹ PhD Student of Rangeland Science, Department of Natural Resources and Geology, Shahrekord University, Iran

² Associate Professor, Department of Natural Resources and Geology, University of Shahrekord, Iran

³ استادیار، دانشکده منابع طبیعی، دانشگاه کردستان، سنندج، ایران

https://doi.org/10.22092/ijrdr.2018.116233

Abstract

Identifying and evaluating rangeland ecosystems is the first step in managing these resources. Without knowledge of rangeland condition, no management plan can be developed for it. For this purpose, three sites with different dominant species were selected for sampling. In each site, 30 sampling units of 900 m² were determined along three transects and sampling quadrates were established in these units. After correction and processing, the NDVI and SAVI indices were extracted from Landsat 8 images, and their correlation with vegetation cover percentage and production was calculated. The results showed that the correlation of indices with the vegetation cover percentage and production was significant in each of the three sites. In each site, the NDVI had the most correlation with dominant vegetation form, while SAVI reduced the effect of soil and was more related with low vegetation cover species. This is related to the SAVI equation and this index could reduce the effect of soil. The broadleaf species had the highest correlation with the NDVI index due to the plant structure and more reflection.

Keywords

References

- Anderson, G. L., Hanson, J. D. and Hass, R. H., 1993. Evaluation of landsat thematic mapper derived vegetation indices for estimating above- ground biomass on semiarid rangelands. Journal of Remote Sensing of Environment, 45: 165-175.

- Arzani, H., Kaboli, H., Mirdavoudi, H. R., Farahpour, M. and Azimi, M., 2008. Assessment TM and ETM+ for estamting plant cover. Iranian Journal of Range and Desert, 15(3):320-347.

- Behbehani, N., Falah Shams, S. R., Farzadmehr, J., Arfanifard, S. Y. and Ramazani Gesk, M., 2010. Using plant indices ASTER-L1B to estimating tree cover in arid rangelands. Rangeland Journal, 1: 93-103.

- Cottam, G., Curtis, J. T. and Hale, B. W., 1953. Same samplig characteristics of papulation of randomly dispersed individuals. Journal of Ecology, 3:132-145.

- Duncan, J., Stow, D., Franklin, J. and Hope, A., 1993. Assessing the relationship between spectral vegetation indices and shrub cover in the Jornada Basin, New Mexico. International Journal of Remote Sensing, 14: 3395- 3416.

- Farzadmehr, G., Arzani, H., Darvishsefat, A. A. and Jafari, M., 2004. An Investigation of the Capability of Data of Landsat-7 Satellite in Estimating Vegetation Cover and Production (Case study: Semi-arid Region Hana- Semirom). Iranian Journal of Natural Resource, 57(2): 339-351.

- Houseini, Z., Khajedin, J., Azarnivan, H., Farahpour, M. and Khalilpourm, E., 2007. Estimation plant cover and preparation plan of plants by using of ETM+ image. Rangeland Journal, 1: 79-90.

- Huete, A. R., Post, D. F. and Jackson, R. D., 1984. Soil spectral effects and 4-space vegetation discrimination. Journal of Remote sensing of Environment, 15:155-165.

- Moleele, N. M. and Arnberg, W., 1997. Color infRared aerial PhotogRaphy vs panchromatic PhotogRaphy in monitoring browse availability to cattle. In Proceedings of the Botswana Institution of Engineers.

- Moleele, N., Ring rose, S., Arenberg, W., Lunden, B. and Vanderpost, C., 2001. Assessment of egetation Indexes useful for browse production in semi-arid ranglands, Journal of International Remote Sensing, 22(5): 41-756.

- Pairanj, J., Ebrahimi, A., Ranjbar, A. and Hassanzadeh, M., 2011. Definition of available production by using of RS and GIS, Rangeland and Desert Journal, 18: (4): 593-607.

- Pickup, G., Chewings, V. and Nelson, D. J., 1993. Estimating changes in vegetation cover over time in ardi rangelands using Landst MSS data, Journal of Remote sensing Environment, 43: 243-263.

- Pickup, G., 1989. New land degradation survey techniques for arid Australia: problems and prospects. Aust, Rang, 11: 74-82. DOI: 10.1071/RJ9890074.

- Rouse, J. W., Haas, J. A., Schell, D. W. and Harlan, J. C., 1974. Monitoring the vernal advancement and retrogradation (greenware effect) of natural vegetation. Greenbelt, MD, USA, NASA/GSFCT, Type 3, Final Report.

- Seperhi, A., 2003. Using Vegetation indices for estimate rangeland vegetation cover in Jahan nama refuge, Iran. Journal of Natural Resources, 55(2): 20-31.

Iranian Journal of Range and Desert Research

Comparison of NDVI and SAVI in three plant communities with different sampling intensity (Case Study: Choghakhour Lake Rangelands in Charmahal & Bakhtiri)

References

References

Volume 25, Issue 1 - Serial Number 70
April 2018
Pages 152-169

Comparison of NDVI and SAVI in three plant communities with different sampling intensity (Case Study: Choghakhour Lake Rangelands in Charmahal & Bakhtiri)

References

References

Volume 25, Issue 1 - Serial Number 70April 2018Pages 152-169

Volume 25, Issue 1 - Serial Number 70
April 2018
Pages 152-169