METHODS OF COMPARISON AND CONSIDER THE UNEVEN AGED FOREST STANDS STRUCTURE (ON THE BASIS OF TREE NUMBER DISTRIBUTION IN DIAMETER CLASSES)

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AMINI MOHAMMAD

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Journal: Year:2001 | Volume:14 | Issue:1 (50 IN NATURAL RESOURCES) Page(s): 4-13

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Title

METHODS OF COMPARISON AND CONSIDER THE UNEVEN AGED FOREST STANDS STRUCTURE (ON THE BASIS OF TREE NUMBER DISTRIBUTION IN DIAMETER CLASSES)

Author(s)

AMINI MOHAMMAD | Issue Writer Certificate

Keywords

STRUCTUREQ4

STANDQ4

UNEVEN AGEDQ2

DENSITYQ4

FOREST TYPOLOGYQ4

LIOCOURT FACTORQ4

SILVICULTUREQ4

Abstract

Frequency distribution (tree number, basal area ...) is the representative of many important information about forest situation and environmental factors. These factors, are reflected by forest STRUCTURE, has several usage in forest management, SILVICULTURE and determining how to raise forest STANDs. The STRUCTURE as a variable is described by frequency data of tree number, basal area, etc. This study has performed in second regeneration area(2nd unit-share) of Neka-Zalem Rud forest project; containing 40 parcels. Upon the project all parcels should managed under the same method but until inventory time hadn't been harvested. Sampling network laid by systematic-random method with 150 x 200 meter sizes and sampling plots on network crosses in a circle form with 17.84 meter in radial. Each parse I has been considerate as an information unit. Plot datas inserted in computer (Spss and Qpro under Win). Statistical and distribution criterion were estimated and computed by graphical and mathematical methods. Results indicates that in order to illustrate comprehensive forest situation: firstly, distribution criterion of certain variables such as tree number, basal area at BH for each STAND should be estimated; secondly descriptive variables should be calculated and finally forest types are recognized according to distribution graphs and descriptive variables. Each class will be the base of future planning’s. Thus using each of the first or second step separately will cause deviations in results and judgments.

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APA: Copy

AMINI, MOHAMMAD. (2001). METHODS OF COMPARISON AND CONSIDER THE UNEVEN AGED FOREST STANDS STRUCTURE (ON THE BASIS OF TREE NUMBER DISTRIBUTION IN DIAMETER CLASSES). PAJOUHESH-VA-SAZANDEGI, 14(1 (50 IN NATURAL RESOURCES)), 4-13. SID. https://sid.ir/paper/18697/en

Vancouver: Copy

AMINI MOHAMMAD. METHODS OF COMPARISON AND CONSIDER THE UNEVEN AGED FOREST STANDS STRUCTURE (ON THE BASIS OF TREE NUMBER DISTRIBUTION IN DIAMETER CLASSES). PAJOUHESH-VA-SAZANDEGI[Internet]. 2001;14(1 (50 IN NATURAL RESOURCES)):4-13. Available from: https://sid.ir/paper/18697/en

IEEE: Copy

MOHAMMAD AMINI, “METHODS OF COMPARISON AND CONSIDER THE UNEVEN AGED FOREST STANDS STRUCTURE (ON THE BASIS OF TREE NUMBER DISTRIBUTION IN DIAMETER CLASSES),” PAJOUHESH-VA-SAZANDEGI, vol. 14, no. 1 (50 IN NATURAL RESOURCES), pp. 4–13, 2001, [Online]. Available: https://sid.ir/paper/18697/en

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