FACTORS INFLUENCE INVENTORY OF FOREST STAND VOLUME

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SOHRABI H.; ZOBEIRI M.; HOSSEINI S.M.

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Journal: Journal of Forest and Wood Products Year:2011 | Volume:64 | Issue:1 Page(s): 39-53

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Information Journal Paper

Title

FACTORS INFLUENCE INVENTORY OF FOREST STAND VOLUME

Author(s)

SOHRABI H. | ZOBEIRI M. | HOSSEINI S.M. | Issue Writer Certificate

Keywords

TIME STUDYQ2

ANALYSIS OF COVARIANCEQ2

FOREST INVENTORYQ2

WEATHER CONDITIONQ2

FIELD CONDITIONQ2

Abstract

Required data for research or decision making for lots of environmental sciences have been provided by field inventory which consume a great deal of the budget. As time and financial resources for inventory are limited, having more information about the effective factors that influences inventory is necessary. Also, new instruments in FOREST INVENTORY such as GPS or laser meter needs to be studied. In this research, required time for field inventory with respect to weather and FIELD CONDITIONs were assessed using continues correlation TIME STUDY method. Required time for each part of field operation was recorded based on 150 10R plots with 300×400 sampling design. Total pure and gross time for recording plots data was 57 and 86 minutes, respectively. The results of two way ANCOVA showed a significant effect of weather and FIELD CONDITION on required time for measuring plots data and crossing distances between plots. Required time for measuring plot data was increased 33 and 43 percent while weather and FIELD CONDITION getting worse, respectively. On the other hand, undesirable weather and FIELD CONDITION increased time for crossing distances between plots 20% and 47% respectively. A regression model for estimating required time of inventory based on distance (d) and slope (s) between plots were developed. The results of ANCOVA also revealed that the effect of number of trees on required time for measuring data was significant but the effect of slope of plots was not significant.

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APA: Copy

SOHRABI, H., ZOBEIRI, M., & HOSSEINI, S.M.. (2011). FACTORS INFLUENCE INVENTORY OF FOREST STAND VOLUME. JOURNAL OF FOREST AND WOOD PRODUCTS (JFWP) (IRANIAN JOURNAL OF NATURAL RESOURCES), 64(1), 39-53. SID. https://sid.ir/paper/162918/en

Vancouver: Copy

SOHRABI H., ZOBEIRI M., HOSSEINI S.M.. FACTORS INFLUENCE INVENTORY OF FOREST STAND VOLUME. JOURNAL OF FOREST AND WOOD PRODUCTS (JFWP) (IRANIAN JOURNAL OF NATURAL RESOURCES)[Internet]. 2011;64(1):39-53. Available from: https://sid.ir/paper/162918/en

IEEE: Copy

H. SOHRABI, M. ZOBEIRI, and S.M. HOSSEINI, “FACTORS INFLUENCE INVENTORY OF FOREST STAND VOLUME,” JOURNAL OF FOREST AND WOOD PRODUCTS (JFWP) (IRANIAN JOURNAL OF NATURAL RESOURCES), vol. 64, no. 1, pp. 39–53, 2011, [Online]. Available: https://sid.ir/paper/162918/en

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