EFFECT OF SOIL PROPERTIES ON PLANT DIVERSITY OF ECOLOGICAL GROUPS IN THE RESERVED FOREST OF NORTHERN KHORASAN

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JAFARI JAVAD; TABARI MASOUD; HOSSEINI SEYED MOHSEN; KOOCH YAHYA

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Journal: Journal of Plant Research Year:2015 | Volume:28 | Issue:1 Page(s): 79-90

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Title

EFFECT OF SOIL PROPERTIES ON PLANT DIVERSITY OF ECOLOGICAL GROUPS IN THE RESERVED FOREST OF NORTHERN KHORASAN

Author(s)

JAFARI JAVAD | TABARI MASOUD | HOSSEINI SEYED MOHSEN | KOOCH YAHYA | Issue Writer Certificate

Keywords

JOEZAK-DARKESH FORESTQ2

SPECIES DIVERSITYQ2

RICHNESSQ2

SPIQ2

ECOLOGICAL GROUPQ2

Abstract

In order to investigate the influence of soil factors on plant diversity and ECOLOGICAL GROUPs in the North Khorasan province, an area of 220 hectares of JOEZAK-DARKESH FOREST was studied. At first, 55 sample plots each of 20 m×20 m were selected to determine the vegetation. Then, 18 samples from superficial layer of the soil (from 0- 10, 10-20 and 20-30 cm depths) were taken and their electric conductivity, pH, organic matter (OC), total nitrogen, available phosphorus, soil texture, K and C: N ratio were measured. ECOLOGICAL GROUPs of indicator species were detected using TWINSPAN (two way indicator species analysis) and the study area was divided into five different ecological units Cotoneaster integeryma (A), Fraxinus excelsior (B), Prunus divaricata (C), Carpinus betulus (D) and Acer laetum (E). Analysis of ecological species groups showed that different groups had significant differences (p<0.05) in Simpson' s Diversity Index (SDI). Duncan’s test revealed that the highest SPECIES DIVERSITY was allocated to E, B and D ECOLOGICAL GROUPs, respectively. This is while no significant differences were detected among the ECOLOGICAL GROUPs in terms of the other biodiversity indices. Pearson regression analysis displayed that rise in pH in the 3rd depth of the soil had negative effect on the SDI and Margalef's species RICHNESS index. The amount of OC and K in the first soil depth had positive effect on the SDI. The other soil characteristics did not affect the diversity indices. It was deduced that among the affective factors, OC and K amounts of the first soil depth separated the five ECOLOGICAL GROUPs in the investigated site.

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APA: Copy

JAFARI, JAVAD, TABARI, MASOUD, HOSSEINI, SEYED MOHSEN, & KOOCH, YAHYA. (2015). EFFECT OF SOIL PROPERTIES ON PLANT DIVERSITY OF ECOLOGICAL GROUPS IN THE RESERVED FOREST OF NORTHERN KHORASAN. JOURNAL OF PLANT RESEARCH (IRANIAN JOURNAL OF BIOLOGY), 28(1), 79-90. SID. https://sid.ir/paper/248878/en

Vancouver: Copy

JAFARI JAVAD, TABARI MASOUD, HOSSEINI SEYED MOHSEN, KOOCH YAHYA. EFFECT OF SOIL PROPERTIES ON PLANT DIVERSITY OF ECOLOGICAL GROUPS IN THE RESERVED FOREST OF NORTHERN KHORASAN. JOURNAL OF PLANT RESEARCH (IRANIAN JOURNAL OF BIOLOGY)[Internet]. 2015;28(1):79-90. Available from: https://sid.ir/paper/248878/en

IEEE: Copy

JAVAD JAFARI, MASOUD TABARI, SEYED MOHSEN HOSSEINI, and YAHYA KOOCH, “EFFECT OF SOIL PROPERTIES ON PLANT DIVERSITY OF ECOLOGICAL GROUPS IN THE RESERVED FOREST OF NORTHERN KHORASAN,” JOURNAL OF PLANT RESEARCH (IRANIAN JOURNAL OF BIOLOGY), vol. 28, no. 1, pp. 79–90, 2015, [Online]. Available: https://sid.ir/paper/248878/en

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