STUDY OF THE IMPACT OF EFFECTIVE PRECIPITATION ON FORAGE PRODUCTION IN SEMI-ARID REGIONS (CASE STUDY: RANGELANDS OF SIAH AFTAB- SEMNAN PROVINCE)

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SHARIFIJELODAR H.; MAHDAVI M.; JOURI M.H.; MOGHIMI J.

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Journal: NATURAL ECOSYSTEMS OF IRAN Year:2011 | Volume:1 | Issue:2 Page(s): 168-174

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Title

STUDY OF THE IMPACT OF EFFECTIVE PRECIPITATION ON FORAGE PRODUCTION IN SEMI-ARID REGIONS (CASE STUDY: RANGELANDS OF SIAH AFTAB- SEMNAN PROVINCE)

Author(s)

SHARIFIJELODAR H. | MAHDAVI M. | JOURI M.H. | MOGHIMI J. | Issue Writer Certificate

Keywords

HERBAGE PRODUCTIONQ2

REGRESSIONQ2

RELATIONSHIPQ3

EFFECTIVE PRECIPITATIONQ2

MULTI –VARIABLES REGRESSIONQ2

Abstract

Estimate of HERBAGE PRODUCTION with the purpose of determining grazing capacity for the optimal managing of rangelands, is an essential and unavoidable activity. Some studies and researches have shown that there is a more appropriate REGRESSION RELATIONSHIP between annual production and EFFECTIVE PRECIPITATION compared with other continental variables. For this purpose, an area from rangelands of Siah Aftab of Garmsar as a model of semi stepp rangelands of Semnan province was determined. Since 1377 to 1388, annual HERBAGE PRODUCTION of the area was measured by using 60 plates measured 2 square meters; double sampling along with 4 transects measured 400 m through a random-systematic sampling method. The variable such as annual rangeland production and also variables including monthly, two- month, seasonal and annual precipitation were determined as dependent variable and independent variables respectively and their RELATIONSHIPs were analyzed by linear multi– variables REGRESSION program through stepwise. The result shows that there is a RELATIONSHIP between annual HERBAGE PRODUCTION and total precipitation in February and March (growth season). According to these findings, it seems that it is possible to Estimate the amount of HERBAGE PRODUCTION based on February and March precipitation.

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APA: Copy

SHARIFIJELODAR, H., MAHDAVI, M., JOURI, M.H., & MOGHIMI, J.. (2011). STUDY OF THE IMPACT OF EFFECTIVE PRECIPITATION ON FORAGE PRODUCTION IN SEMI-ARID REGIONS (CASE STUDY: RANGELANDS OF SIAH AFTAB- SEMNAN PROVINCE). NATURAL ECOSYSTEMS OF IRAN, 1(2), 168-174. SID. https://sid.ir/paper/215255/en

Vancouver: Copy

SHARIFIJELODAR H., MAHDAVI M., JOURI M.H., MOGHIMI J.. STUDY OF THE IMPACT OF EFFECTIVE PRECIPITATION ON FORAGE PRODUCTION IN SEMI-ARID REGIONS (CASE STUDY: RANGELANDS OF SIAH AFTAB- SEMNAN PROVINCE). NATURAL ECOSYSTEMS OF IRAN[Internet]. 2011;1(2):168-174. Available from: https://sid.ir/paper/215255/en

IEEE: Copy

H. SHARIFIJELODAR, M. MAHDAVI, M.H. JOURI, and J. MOGHIMI, “STUDY OF THE IMPACT OF EFFECTIVE PRECIPITATION ON FORAGE PRODUCTION IN SEMI-ARID REGIONS (CASE STUDY: RANGELANDS OF SIAH AFTAB- SEMNAN PROVINCE),” NATURAL ECOSYSTEMS OF IRAN, vol. 1, no. 2, pp. 168–174, 2011, [Online]. Available: https://sid.ir/paper/215255/en

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