AN INVESTIGATION ON COMPARISON OF EIGHT DISTANCE METHODS OF DENSITY MEASUREMENT IN SHRUB LANDS OF ZYGOPHYLLUM EURYPTERUM IN BARDSIR-SIRJAN REGION

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SAADATFAR A.; BARANI H.; MESDAGHI M.

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Journal: Journal of Agricultural Sciences and Natural Resources Year:2007 | Volume:14 | Issue:SUPPLEMENT (SPECIAL ISSUE NATURAL RESURCES) Page(s): 183-192

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Title

AN INVESTIGATION ON COMPARISON OF EIGHT DISTANCE METHODS OF DENSITY MEASUREMENT IN SHRUB LANDS OF ZYGOPHYLLUM EURYPTERUM IN BARDSIR-SIRJAN REGION

Author(s)

SAADATFAR A. | BARANI H. | MESDAGHI M. | Issue Writer Certificate

Keywords

ZYGOPHLLUMQ3

DENSITYQ3

DISTANCE METHODSQ3

EFFICIENCYQ2

ANALYTIC HIERARCHY PROCESSQ2

Abstract

In order to compare the EFFICIENCY of DISTANCE METHODS in based on accuracy, precision and time, four 2-hectar area (100 m*200m) of shrub lands were determined at Bardsir-Sirjan, Kennan province. In each area, all individual shrubs were counted as control. Five 100m-transects were located which spaced40 meters and on each transect sampling points (20) were determined. The points were spaced 5 meters. The first point was selected randomly and others were regularly spaced. Shrub DENSITY was determined with eight methods along these transect. These methods were Closest individual, Nearest neighbor, Random pairs, Center-quarter point, Third nearest, Variable-area transect, Angel order method, wandering quarter method and census (full counting) of individuals which considered as control method. Distribution pattern of the plant in the study area was determined using pilou index, ANNOVA and Multiple Duncan test were used to compare these eight methods. For determination of the most efficient distance method to estimate DENSITY of production, the ANALYTIC HIERARCHY PROCESS was used. The results indicated that the most precise distance method whether DENSITY or estimation of production in shrub lands is third nearest and the most fast or low cost method was Angel order. The most accurate method was nearest neighbor. Third nearest was the most efficient method to determine DENSITY of the shrub.

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APA: Copy

SAADATFAR, A., BARANI, H., & MESDAGHI, M.. (2007). AN INVESTIGATION ON COMPARISON OF EIGHT DISTANCE METHODS OF DENSITY MEASUREMENT IN SHRUB LANDS OF ZYGOPHYLLUM EURYPTERUM IN BARDSIR-SIRJAN REGION. JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES, 14(SUPPLEMENT (SPECIAL ISSUE NATURAL RESURCES)), 183-192. SID. https://sid.ir/paper/8985/en

Vancouver: Copy

SAADATFAR A., BARANI H., MESDAGHI M.. AN INVESTIGATION ON COMPARISON OF EIGHT DISTANCE METHODS OF DENSITY MEASUREMENT IN SHRUB LANDS OF ZYGOPHYLLUM EURYPTERUM IN BARDSIR-SIRJAN REGION. JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES[Internet]. 2007;14(SUPPLEMENT (SPECIAL ISSUE NATURAL RESURCES)):183-192. Available from: https://sid.ir/paper/8985/en

IEEE: Copy

A. SAADATFAR, H. BARANI, and M. MESDAGHI, “AN INVESTIGATION ON COMPARISON OF EIGHT DISTANCE METHODS OF DENSITY MEASUREMENT IN SHRUB LANDS OF ZYGOPHYLLUM EURYPTERUM IN BARDSIR-SIRJAN REGION,” JOURNAL OF AGRICULTURAL SCIENCES AND NATURAL RESOURCES, vol. 14, no. SUPPLEMENT (SPECIAL ISSUE NATURAL RESURCES), pp. 183–192, 2007, [Online]. Available: https://sid.ir/paper/8985/en

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