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Under-over ground Biomass characteristic of perennial Species (Eremostachys laciniata) in northwest Iran (Till area of shabestar)Abstract: Studies on assessment biomass variation in selected populations of Eremostachys laciniata were in northwest Iran (Till area of shabestar). Research aimed to investigate how root and shoot biomass production varies across a range of bulk densities and soil strengths. The research also sought to determine whether there is a threshold bulk density and/or soil strength that limit biomass production of roots and or shoots for perennial grasses. Root and shoot in these species were sampled in one stage from Mar to Aug. roots of plants stable soils on slope and provide resistance against the forces that improve slope instability. We studied: Eremostachys laciniata to determine its characteristics. Data were collected with random sampling in this aria with 1m2 in 64 quadrate plots. Mean, Max and Min over ground biomass of this plant is 0.66, 7.33, 3.27 g-2, respectively.
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