AN INVESTIGATION OF SPECIES RICHNESS AND LIFE FORMS IN VARIOUS LAND UNITS (CASE STUDY: HOSSEIN-ABAD SEMI-ARID RANGELANDS, TAKESTAN)

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KHALIFEHZADEH R.; MESDAGHI MANSOUR; SEPEHR ADEL

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Journal: Journal of Rangeland Year:2010 | Volume:3 | Issue:4 Page(s): 546-558

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Information Journal Paper

Title

AN INVESTIGATION OF SPECIES RICHNESS AND LIFE FORMS IN VARIOUS LAND UNITS (CASE STUDY: HOSSEIN-ABAD SEMI-ARID RANGELANDS, TAKESTAN)

Author(s)

KHALIFEHZADEH R. | MESDAGHI MANSOUR | SEPEHR ADEL | Issue Writer Certificate

Keywords

SPECIES RICHNESSQ2

WHITTAKER'S PLOTQ3

LIFE FORMSQ3

LAND UNITSQ3

GROUP REGRESSIONQ3

HOSSEIN-ABADQ3

Abstract

Topography is one of the most important factors that affects on vegetation cover. LAND UNITS are the homogeneous units which are classified using the topographic and soil factors. In this research, the SPECIES RICHNESS and life form species in key area of two LAND UNITS (with the same vegetation type) of HOSSEIN-ABAD winter rangelands at Qazvin province were studied by using WHITTAKER'S PLOTs. After determining of key areas on LAND UNITS, two WHITTAKER'S PLOTs of 0.1-ha were established in LAND UNITS. In each of Whittaker’s plots, from 0.1 to 1000 m2, the name and the number of each species and their LIFE FORMS were recorded. Applying PCA ordination method, four Whittaker’s plots were grouped. By using linear regression models, two appropriate regression equations were calculated for each of LAND UNITS. In order to comparing the regression coefficients, the GROUP REGRESSION model was used. The results showed that the SPECIES RICHNESS in land unit of 2.1 has a significant different in comparing to land unit of 3.3 (P<0.05) and the SPECIES RICHNESS in the first unit is higher than the second unit. Comparing of LIFE FORMS composition in 2.1 and 3.3 LAND UNITS implied that the utilization rate in the first unit is less than the second unit.

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APA: Copy

KHALIFEHZADEH, R., MESDAGHI, MANSOUR, & SEPEHR, ADEL. (2010). AN INVESTIGATION OF SPECIES RICHNESS AND LIFE FORMS IN VARIOUS LAND UNITS (CASE STUDY: HOSSEIN-ABAD SEMI-ARID RANGELANDS, TAKESTAN). RANGELAND, 3(4), 546-558. SID. https://sid.ir/paper/136268/en

Vancouver: Copy

KHALIFEHZADEH R., MESDAGHI MANSOUR, SEPEHR ADEL. AN INVESTIGATION OF SPECIES RICHNESS AND LIFE FORMS IN VARIOUS LAND UNITS (CASE STUDY: HOSSEIN-ABAD SEMI-ARID RANGELANDS, TAKESTAN). RANGELAND[Internet]. 2010;3(4):546-558. Available from: https://sid.ir/paper/136268/en

IEEE: Copy

R. KHALIFEHZADEH, MANSOUR MESDAGHI, and ADEL SEPEHR, “AN INVESTIGATION OF SPECIES RICHNESS AND LIFE FORMS IN VARIOUS LAND UNITS (CASE STUDY: HOSSEIN-ABAD SEMI-ARID RANGELANDS, TAKESTAN),” RANGELAND, vol. 3, no. 4, pp. 546–558, 2010, [Online]. Available: https://sid.ir/paper/136268/en

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