Application Of Plants As The Index For Categorizing Of Climatic Classes
2007
By: Farmahini Farahani, A.,, Research Expertise of Agricultural and Natural Resources Research Center of Markazi Province. | Mahdavi, M.,, Prof. of Natural Resources College of Tehran University.
Some of the plants in the nature always distribute in the specific region and could rarely be observed in other climates. These plants can be used as the index for recognizing and categorizing of climates. In this research at first the climate of Markazi province were classified by using the methods of Koppen, Stenze, Emberge, Thornth waite (1948 and 1933), adjusted Demarton and Gorszinsky. For this purpose the 20 years climate data were collected and dependency relationships of climate factors with elevation were determined. In order to relocating obtained relationship in climate equations as well as establishing the classified system. In next step, were recognize the key plant species in the area. With study of 550 key plant species, 54 plant sp. were recognized as a climatic discriminates. After that the comparison of plant discriminate of climate and climatic classes of classification systems for each plant carried out. For this purpose, the methods of census correct observation and scoring them according to their importance were applied. The results showed that the obtained climatic classes of adjusted Demarton, Thornth weite, Emberge were respectively more precise than other systems in the study area. Finally the results were examined using the none-parametric test of Man-Vitni. On the basis of this analysis, significant differences also were observed between the treatments.
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