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Mohadeseh Ghanbari Motlagh Sasan Babaie Kafaky Asadollah Mataji Reza Akhavan 《Environmental monitoring and assessment》2018,190(6):352
Hyrcanian forests of North of Iran are of great importance in terms of various economic and environmental aspects. In this study, Spot-6 satellite images and regression models were applied to estimate above-ground biomass in these forests. This research was carried out in six compartments in three climatic (semi-arid to humid) types and two altitude classes. In the first step, ground sampling methods at the compartment level were used to estimate aboveground biomass (Mg/ha). Then, by reviewing the results of other studies, the most appropriate vegetation indices were selected. In this study, three indices of NDVI, RVI, and TVI were calculated. We investigated the relationship between the vegetation indices and aboveground biomass measured at sample-plot level. Based on the results, the relationship between aboveground biomass values and vegetation indices was a linear regression with the highest level of significance for NDVI in all compartments. Since at the compartment level the correlation coefficient between NDVI and aboveground biomass was the highest, NDVI was used for mapping aboveground biomass. According to the results of this study, biomass values were highly different in various climatic and altitudinal classes with the highest biomass value observed in humid climate and high-altitude class. 相似文献
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Ataei Seyed Milad Aghayan Iman Pouresmaeili Mohammad Amin Babaie Meisam Hadadi Farhad 《Environmental science and pollution research international》2022,29(4):5105-5123
Environmental Science and Pollution Research - The drive mode is an important factor that affects the adjustment requirements for emission factors of the conventional simulation methods in... 相似文献
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