The survey correlation of between rainfal with production – canopy and condition in rangland of Margoon.
2008
Nikbakht, Mansur | Habibiyan, Hamid | Mozaffari, Saadat
There are different methods to determain The production of forage at rangelands.Some of these methods are taken more time and needs high costs, and also have adverse effects on rangelands. It is correlation between amount of rainfal,to condition, canopy and production of rangelands. Present study was don to find this relation at Margoon station. This station is divided in to 5 sections, wich is based on majurity of plants specios. At each station oppointed of prenual transect and marked 30 pegs in each one. These points were plotting was don for 9 years. Produtivity, condition, trend and canopy of rangelands by clipping and weighting, four factors grading, trend scal and using 100 parts plots methods were determained, respectively. Rainfal, snow and others climate factors were obtained mountly from synoptic ststion. The result showed : over 90% were be correlated between rainfal with production (yield) canopy and condition of rangelands. Between raining to canopy,yield and condition have correlation R=0.758, R=0.996 and R=0.913 and at the level 5%, 1% and 5% correlation is signification in 9 years, respectively. Between yield with condition and canopy correlation is signification at the 1% and 5% in 9 years, respectively . Between canopy and condition correlation is not significant.
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