Vegetation cover change detection using RS and GIS in Chaharbagh rangelands of Golestan province for a period of 30-years

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Shahidi Khosro; TAVILI ALI; JAVADI SEYED AKBAR

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Journal: Journal of Rangeland Year:2021 | Volume:15 | Issue:2 Page(s): 180-194

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Information Journal Paper

Title

Vegetation cover change detection using RS and GIS in Chaharbagh rangelands of Golestan province for a period of 30-years

Author(s)

Shahidi Khosro | TAVILI ALI | JAVADI SEYED AKBAR | Issue Writer Certificate

Keywords

Vegetation classesQ1

Remote sensingQ2

NDVI indexQ1

Chaharbagh rangelandQ1

Abstract

Using accurate and low-cost methods to monitor quantitative changes in vegetation cover play an important role in the efficient and sustainable management when the area is too large. In this study, the changes of vegetation cover were investigated using satellite data of TM (Landsat_5) and oli (Landsat_8) sensors for a 30-year period (1988-2018) in Chaharbagh rangeland of Golestan province. To detect the vegetation changes, the numerical values of NDVI index were classified in to 4 different cover categories, good, medium, poor and very poor for the study period 1988-2018, and the changes were determined using the CROSSTAB technique. Accuracy was assessed by comparing satellite imagery and ground information using the kappa coefficient. The results well showed the changes, decreasing, increasing and unchanged Vegetation classes so that the overall accuracy and kappa coefficient of the maps were 90% and 0. 86, respectively for 2018. For the course of the study land areas with good vegetation were increased from 2025. 5 ha to 2323. 7 ha. The highest reduction of very poor cover was 22/7 hectares and the poor cover classes has decreased from 376. 1 to 103. 18 ha. The good cover class has decreased from 530. 1 to 527. 3 ha in 2018. Evaluations showed that the application of Remote sensing has the ability to detect minor changes in Vegetation classes under environmental and managerial factors in semi-arid regions over time.

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APA: Copy

Shahidi, Khosro, TAVILI, ALI, & JAVADI, SEYED AKBAR. (2021). Vegetation cover change detection using RS and GIS in Chaharbagh rangelands of Golestan province for a period of 30-years. RANGELAND, 15(2 ), 180-194. SID. https://sid.ir/paper/402672/en

Vancouver: Copy

Shahidi Khosro, TAVILI ALI, JAVADI SEYED AKBAR. Vegetation cover change detection using RS and GIS in Chaharbagh rangelands of Golestan province for a period of 30-years. RANGELAND[Internet]. 2021;15(2 ):180-194. Available from: https://sid.ir/paper/402672/en

IEEE: Copy

Khosro Shahidi, ALI TAVILI, and SEYED AKBAR JAVADI, “Vegetation cover change detection using RS and GIS in Chaharbagh rangelands of Golestan province for a period of 30-years,” RANGELAND, vol. 15, no. 2 , pp. 180–194, 2021, [Online]. Available: https://sid.ir/paper/402672/en

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