USING VEGETATION INDICES FOR ESTIMATION OF CANOPY COVER PERCENTAGE OF RANGELAND VEGETATION (IN PROTECTED AREA OF JAHAN – NAMA, GORGAN)

Q: How can I download an article?

To download an article from SID, first log in to the site, search for the article title, and click on the 'Download Article' option.

Q: How can I download an ISI article?

To download an ISI article on SID, enter the keyword or article title in the search bar, view the relevant results, click on the desired article, and select the 'Download Article' option.

Q: How can I access the SID database?

To access the SID database, visit SID.ir, create an account, and log in to access scientific resources.

Q: Is downloading articles from SID free?

Some articles on SID are available for free, while others require payment. Details are specified on the article's page.

SEPEHR ADEL; MOTTAGHI M.R.

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Journal Paper

Paper Information

Journal: IRANIAN JOURNAL OF NATURAL RESOURCES Year:2002 | Volume:55 | Issue:2 Page(s): 259-271

Download Full-Text

Persian Verion

View:

1,237

Download:

Cites:

Information Journal Paper

Title

USING VEGETATION INDICES FOR ESTIMATION OF CANOPY COVER PERCENTAGE OF RANGELAND VEGETATION (IN PROTECTED AREA OF JAHAN – NAMA, GORGAN)

Author(s)

SEPEHR ADEL | MOTTAGHI M.R. | Issue Writer Certificate

Keywords

LANDSATQ4

THEMATIC MAPPERQ4

NDVIQ2

CANOPY COVERQ2

BIOMASSQ2

VEGETATION INDEXQ2

REGRESSION ANALYSISQ4

RANGELANDQ4

JAHAN-NAMAQ4

Abstract

Application of vegetation indices derived from LANDSAT THEMATIC MAPPER imagery to estimate RANGELAND vegetation CANOPY COVER percentage of JAHAN-NAMA protected area was assessed. Stratified random sampling was designed and 370 sample plots on 37 sample units were allocated in the field using Global positioning System (GPS). LANDSAT THEMATIC MAPPER image, dated on 1998, was geometrically corrected with RMS error of less than 0.98-pixel size. Corresponding mean values of 9-pixel elements belonging to sample units for all created indices were extracted. Corresponding field measurements have been regressed against TM data, as an independent variable, and 69 VEGETATION INDEX values created by different combination of TM bands as dependent varibables. Their statistical models have been developed. Results show that if CANOPY COVER percentage without its arrangement in classes is entered in the REGRESSION ANALYSIS, LANDSAT data are unable to detect their changes. The results also show that LANDSAT data are capable of detecting high CANOPY COVER percentage classes when field data are categorized. Regression analyses show promising results in estimating CANOPY COVER percentage of RANGELAND vegetation. The index, (TM5- TM3)/(TM5+TM3), shows high correlation (0.99) with the first CANOPY COVER class (71.9- 88.1%), (TM3-TM7)/(TM3+TM7) and (TM6)/(TM3+TM5) show high correlation with the second class (58.6-71.9%). Having more than 0.85 regression coefficient. (TM6)/(TM7-TM2) demonstrates high correlation with the third canopy class having 45.2-58.6 percent CANOPY COVERage. For the last class, no index is introduced, because of any significant correlation between CANOPY COVER and all involved indices.

Cites

References

کاربرد اطلاعات داده های رقومی ماهواره لندست TM در تخمین تولید و پوشش گیاهی

Cite

APA: Copy

SEPEHR, ADEL, & MOTTAGHI, M.R.. (2002). USING VEGETATION INDICES FOR ESTIMATION OF CANOPY COVER PERCENTAGE OF RANGELAND VEGETATION (IN PROTECTED AREA OF JAHAN – NAMA, GORGAN). IRANIAN JOURNAL OF NATURAL RESOURCES, 55(2), 259-271. SID. https://sid.ir/paper/361931/en

Vancouver: Copy

SEPEHR ADEL, MOTTAGHI M.R.. USING VEGETATION INDICES FOR ESTIMATION OF CANOPY COVER PERCENTAGE OF RANGELAND VEGETATION (IN PROTECTED AREA OF JAHAN – NAMA, GORGAN). IRANIAN JOURNAL OF NATURAL RESOURCES[Internet]. 2002;55(2):259-271. Available from: https://sid.ir/paper/361931/en

IEEE: Copy

ADEL SEPEHR, and M.R. MOTTAGHI, “USING VEGETATION INDICES FOR ESTIMATION OF CANOPY COVER PERCENTAGE OF RANGELAND VEGETATION (IN PROTECTED AREA OF JAHAN – NAMA, GORGAN),” IRANIAN JOURNAL OF NATURAL RESOURCES, vol. 55, no. 2, pp. 259–271, 2002, [Online]. Available: https://sid.ir/paper/361931/en

Related Journal Papers