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Information Journal Paper

Title

Identification of Vegetation-Vulnerable Areas to Drought Using Remote Sensing (Case study: Boushehr Province)

Pages

  341-354

Abstract

 The complexity of Drought phenomenon hinders our full understanding of its impact. Field sampling, Geographic Information Systems, SPI and NDVI, EVI and SAVI indices derived from 16-day interval MODIS images during 2000-2015 were used to better understand the effects of Drought on vegetation In recent study, ground true map was prepared by sampling and field surveys and vegetation cover data was obtained from 32 sampling units in 320 plots over the entire study area. Then, the Correlation between field sampling data and Vegetation Indices was estimated and vegetation cover models were produced for different indices. In this study, precipitation data of 14 stations within and around the study area were used and SPI was calculated at the same time scales with the Vegetation Indices to study the effect of Drought on vegetation. The results showed that NDVI has had the highest Correlation coefficient (R2=0. 56) amongst the indices so it was selected for vegetation cover percentage mapping. Investigating NDVI rates and Drought index in different temporal periods, 9-month SPI was found to have the best Correlation with NDVI. On the basis of SPI analysis, it was found that the study area had the most severe Drought in 2012 and the best wet condition in 2004. The similar trend was observed in NDVI. The comparison of classified images between 2004 and 2012 (with 42 % changes in poor vegetation) indicates the effect of Drought on vegetation in the study area.

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    APA: Copy

    BAHREINI, FATEMEH, PANAHI, FATEMEH, JAFARI, MOHAMMAD, & MALEKIAN, ARASH. (2018). Identification of Vegetation-Vulnerable Areas to Drought Using Remote Sensing (Case study: Boushehr Province). JOURNAL OF RANGE AND WATERSHED MANAGEMENT (IRANIAN JOURNAL OF NATURAL RESOURCES), 71(2 ), 341-354. SID. https://sid.ir/paper/162511/en

    Vancouver: Copy

    BAHREINI FATEMEH, PANAHI FATEMEH, JAFARI MOHAMMAD, MALEKIAN ARASH. Identification of Vegetation-Vulnerable Areas to Drought Using Remote Sensing (Case study: Boushehr Province). JOURNAL OF RANGE AND WATERSHED MANAGEMENT (IRANIAN JOURNAL OF NATURAL RESOURCES)[Internet]. 2018;71(2 ):341-354. Available from: https://sid.ir/paper/162511/en

    IEEE: Copy

    FATEMEH BAHREINI, FATEMEH PANAHI, MOHAMMAD JAFARI, and ARASH MALEKIAN, “Identification of Vegetation-Vulnerable Areas to Drought Using Remote Sensing (Case study: Boushehr Province),” JOURNAL OF RANGE AND WATERSHED MANAGEMENT (IRANIAN JOURNAL OF NATURAL RESOURCES), vol. 71, no. 2 , pp. 341–354, 2018, [Online]. Available: https://sid.ir/paper/162511/en

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