Firoozi, Omolbanin (2014) Effect of livestock grazing on tragacanth production in Arstragalus gossypinus habitats. Masters thesis, University of Zabol.
|
Text
Effect of livestock grazing on tragacanth production in.pdf Download (266kB) | Preview |
Abstract
Tragacanth Gum productive Astragalus habitats in Golpayegan pastures, placed in North West of Esfahan province, in addition to being used extensively and irrelatively\ by local, due to high traffic overgrazing of livestock and overgrazing companion species and natural factors such as drought, are expose to losing their productive potential. Therefore it is necessary to investigate the impact of grazing of livestock on the amount of Tragacanth Gum production in (Astraglus gossypinus) habitat. The purpose of this study was to determine the effect of grazing severity on production Of Tragacanth Gum in Astraglus Gossypinus habitats. This study was conducted in habitats of Astragalus of Golpayegan city. The Research was done in a completely randomized design by three lenient grazing, moderate grazing and heavy grazing treatment in three repetition. The Heavy grazing areas, Filakhos, Konjedjan and Varzaneh, moderate grazing areas in the Kaleh Zard, Dareh Ghileh and Piseh Kooh , and lenient grazing areas Saleh Peyghambar, Gezizn and Abbas Bag in Astragalus Gossypinus habitat of Golpayegan pastures were studied. Sampling was conducted along 50 meters transects with a distance of 100 meters from each other from Mordad to Shahrivar of 1392. The value of Tragacanth gum and the morphological characteristic of astragals bushes such as height, diameter and canopy size were measured on each transect. 75 samples were harvested from each treatment. Furthermore, the rate of soil permeability was measured with double ring on each transect. An undisturbed soil sample for measuring soil bulk density and porosity was harvested at each transects. The Surface properties such as soil's amount of compaction and the amount of animal waste in each transect as well as qualitative effects of grazing on plant species were recorded. Data were analyzed by one-way ANOVA. To differentiate the averages of meaning, the Duncan's test at 95% significance level was used. To study the relationship between the morphological characteristics of Astragalus bushes and the physical properties of Tragacanth gum habitat's soil and the amount of Tragacanth gum production the Pearson correlation coefficient was used. Grazing severity had an effect on the amount of Tragacanth gum habitat (p<0/05). The amount of Tragacanth Gum production in Astragalus habitats under heavy grazing had a meaningful difference with habitats under moderate grazing (p<0/05). The amount of gum Tragacanth production in Astragalus habitats under heavy grazing were 54/75 percent less than the amount produced in Astragalus habitat Tragacanth gum under moderate grazing intensity. Also, the amount of Tragacanth gum production in the heavy grazing intensity with habitat Astragalus had meaningful difference with under light grazing intensities (p<0/05) Tragacanth gum production in Astragalus habitat under heavy grazing intensity of 60/18 percent less than the amount of Tragacanth gum production in lenient grazing intensity. Finally, the amount of Tragacanth gum production in moderate-intensity grazing Astragalus habitat under lenient grazing intensity has not meaningful difference (p>0/05). The Correlation between the amount of Tragacanth gum production and diameter and the height of the Astragalus Bush were (r =0/33; p<0/05) and (r=0/21; p<0/05) respectively. In addition, the amount of Tragacanth gum of each Bush had a meaningful correlation with plant cover (r =0/45;p <0/05;) there was a meaningful correlation between soil infiltration rate and the amount of Tragacanth gum (p <0/05). Also there was no correlation between the bulk densities of soil porosity amount of Tragacanth gum (p <0/05). Heavy grazing intensity has a negative effect on the amount of Tragacanth gum production of Astragalus gossypinus in astragalus habitat. However there was no difference between the habitat Astragalus under moderate and lenient grazing intensity in the amount of gum Tragacanth. Thus, by adjusting the number of animals grazing at moderate intensity in habitat Astragalus, while creating a balance between the number of animals and habitat capacity, the amount of gum Tragacanth does not decrease.
| Item Type: | Thesis (Masters) |
|---|---|
| Uncontrolled Keywords: | grazing, pasture Golpayegan, tragacanth gum, Astragalus gossypinus |
| Subjects: | S Agriculture > S Agriculture (General) |
| Depositing User: | admin admin1 admin2 |
| Date Deposited: | 23 May 2016 07:07 |
| Last Modified: | 23 May 2016 07:07 |
| URI: | http://eprints.uoz.ac.ir/id/eprint/632 |
Actions (login required)
 |
View Item |
