THE EFFICIENCY COMBINED DRY WEIGHT RANK (DWR) METHOD WITH COMPARATIVE YIELD AND VISUAL ESTIMATE METHODS TO MEASURE GRASSLAND YIELD

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KHOSRAVI MASHIZI A.; HESHMATI G.A.

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ISSN: 2588-4824

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Paper Information

Journal: Journal of Rangeland Year:2010 | Volume:4 | Issue:2 Page(s): 198-205

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Title

THE EFFICIENCY COMBINED DRY WEIGHT RANK (DWR) METHOD WITH COMPARATIVE YIELD AND VISUAL ESTIMATE METHODS TO MEASURE GRASSLAND YIELD

Author(s)

KHOSRAVI MASHIZI A. | HESHMATI G.A. | Issue Writer Certificate

Keywords

YIELDQ2

DRY WEIGHT RANK METHODQ3

GRASSLANDQ2

CHAHARBAGHQ3

COMPARATIVE YIELD METHODQ3

Abstract

The Necessity of fast and cheap assessment of GRASSLAND YIELD is evident and it is vital for it to be introduced as the best method. The aim of this research is to study the efficiency of GRASSLAND YIELD assessment by the Dry Weight Rank (DWR) method. This study was accomplished in CHAHARBAGH cold season rangeland. By way of this research, DWR was combined with the Binary Visual Estimated method and the Comparative YIELD method and the two method’s efficiency compared to the Clipping and weighing method (witness) was evaluated by the T-Test analysis.The dry weight and time spent were calculated for the three combined methods of DWR and Estimation, DWR and Comparative YIELD, and finally DWR and Clipping and Weighing. The difference shown between these three methods for grass life form were proved statistically insignificant. Never the less, the combined methods of DWR were not useful for some forb and shrub species. Due to the fast rate and low expenses of the DWR method and it's capability to show the changes between different types and times, it can be used for this purpose.

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APA: Copy

KHOSRAVI MASHIZI, A., & HESHMATI, G.A.. (2010). THE EFFICIENCY COMBINED DRY WEIGHT RANK (DWR) METHOD WITH COMPARATIVE YIELD AND VISUAL ESTIMATE METHODS TO MEASURE GRASSLAND YIELD. RANGELAND, 4(2), 198-205. SID. https://sid.ir/paper/136384/en

Vancouver: Copy

KHOSRAVI MASHIZI A., HESHMATI G.A.. THE EFFICIENCY COMBINED DRY WEIGHT RANK (DWR) METHOD WITH COMPARATIVE YIELD AND VISUAL ESTIMATE METHODS TO MEASURE GRASSLAND YIELD. RANGELAND[Internet]. 2010;4(2):198-205. Available from: https://sid.ir/paper/136384/en

IEEE: Copy

A. KHOSRAVI MASHIZI, and G.A. HESHMATI, “THE EFFICIENCY COMBINED DRY WEIGHT RANK (DWR) METHOD WITH COMPARATIVE YIELD AND VISUAL ESTIMATE METHODS TO MEASURE GRASSLAND YIELD,” RANGELAND, vol. 4, no. 2, pp. 198–205, 2010, [Online]. Available: https://sid.ir/paper/136384/en

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