INVESTIGATION OF THE ROLE OF TEMPORAL DISTRIBUTION OF PRECIPITATION ON FORAGE PRODUCTION VALUE OF THE RANGELAND

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AZARAKHSHI MARYAM; MAHDAVI MOHAMMAD; AHMADI HASAN; ARZANI HOSSEIN; FARZADMEHR JALIL

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Journal: Journal of Range and Watershed Managment Year:2016 | Volume:68 | Issue:4 Page(s): 885-899

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Title

INVESTIGATION OF THE ROLE OF TEMPORAL DISTRIBUTION OF PRECIPITATION ON FORAGE PRODUCTION VALUE OF THE RANGELAND

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Keywords

FORAGE PRODUCTIONQ2

GROWTH SEASONQ2

ILAMQ2

MARKAZIQ1

QOMQ2

TEMPORAL DISTRIBUTION OF PRECIPITATIONQ2

Abstract

Plants cover composition, condition, trend, production, and grazing capacity of the rangeland change annually. These changes are affected by two factors: the alternative climate and decision management. In this research, the role of temporal rainfall distribution on rangeland production in ragelands of ILAM, QOM and MARKAZI provinces was assessed. By attention on plant cover maps 10 types of plant cover in ILAM, 8 types in QOM and 10 types in MARKAZI were selected. In these sites, relative factor to plant cover and soil contains: canopy cover, density, production, germination and, soil cover were measured along four 400 m transects into 60 plots.the production of the graze able species was measured by clipping and weighting method. The regression techniques and correlation coefficient were used to the relation between production and precipitation. to determination the role of the temporal distribution of rainfall of the rangeland production, the relationship between rainfall and production was calculated in seven time steps contains: annually, March to July, February to July, March to June, March to May, March to April and March. The results show that only 4% of the total FORAGE PRODUCTION is explained by annual precipitation but in 96%, cases there were related with start of GROWTH SEASON and GROWTH SEASON. This result shows the importance of GROWTH SEASON precipitation on the forage yield in rangelands.

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APA: Copy

AZARAKHSHI, MARYAM, MAHDAVI, MOHAMMAD, AHMADI, HASAN, ARZANI, HOSSEIN, & FARZADMEHR, JALIL. (2016). INVESTIGATION OF THE ROLE OF TEMPORAL DISTRIBUTION OF PRECIPITATION ON FORAGE PRODUCTION VALUE OF THE RANGELAND. JOURNAL OF RANGE AND WATERSHED MANAGEMENT (IRANIAN JOURNAL OF NATURAL RESOURCES), 68(4), 885-899. SID. https://sid.ir/paper/162273/en

Vancouver: Copy

AZARAKHSHI MARYAM, MAHDAVI MOHAMMAD, AHMADI HASAN, ARZANI HOSSEIN, FARZADMEHR JALIL. INVESTIGATION OF THE ROLE OF TEMPORAL DISTRIBUTION OF PRECIPITATION ON FORAGE PRODUCTION VALUE OF THE RANGELAND. JOURNAL OF RANGE AND WATERSHED MANAGEMENT (IRANIAN JOURNAL OF NATURAL RESOURCES)[Internet]. 2016;68(4):885-899. Available from: https://sid.ir/paper/162273/en

IEEE: Copy

MARYAM AZARAKHSHI, MOHAMMAD MAHDAVI, HASAN AHMADI, HOSSEIN ARZANI, and JALIL FARZADMEHR, “INVESTIGATION OF THE ROLE OF TEMPORAL DISTRIBUTION OF PRECIPITATION ON FORAGE PRODUCTION VALUE OF THE RANGELAND,” JOURNAL OF RANGE AND WATERSHED MANAGEMENT (IRANIAN JOURNAL OF NATURAL RESOURCES), vol. 68, no. 4, pp. 885–899, 2016, [Online]. Available: https://sid.ir/paper/162273/en

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