Samira Hajipour; Hosein Barani; Hasan Yeganeh; Ahmad Abedi Sarvestani
Volume 26, Issue 3 , September 2019, , Pages 531-542
Abstract
Livestock grazing is one of the most important factors effective on soil and vegetation structure and function. This study aimed to investigate the factors affecting the grazing frequency and intensity in the rangeland in autumn 2015. The statistical population was the heads ...
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Livestock grazing is one of the most important factors effective on soil and vegetation structure and function. This study aimed to investigate the factors affecting the grazing frequency and intensity in the rangeland in autumn 2015. The statistical population was the heads of tribal families in Kuhdasht city (1038 families), among which 310 heads of households were selected by the Cochran formula in stratified random sampling method. Data were collected by questionnaires and direct interview containing seven open questions and 17 closed questions. The validity and reliability of questionnaires were approved by a panel of experts and calculating the Cronbach alpha coefficient (above 0.85), respectively. Kendal correlation coefficient showed that there was a significant relationship between the grazing frequency with the annual mean income and cost of beneficiaries, annual calving of 10 livestock and distance between summer and winter rangelands. There was also a significant relationship between grazing intensity and the annual calving of 10 livestock. The results of Mann-Whitney test showed that there was a significant difference between the index of grazing frequency and intensity in winter rangeland. The results of the Kruskal-Wallis test also showed that there was no significant difference between index of grazing frequency and intensity with utilization type of rangeland.
Mohammad Fayaz; Seyed Hamid Habibian; Hasan Yeganeh; Anvar Sanaie; Mohammadjavad Mahdavi
Volume 26, Issue 1 , June 2019, , Pages 174-186
Abstract
The knowledge of livestock grazing behavior is one of the effective factors in rangeland management. This research was carried out in order to recognize the sheep grazing behavior in the rangelands of Cheshmeh Anjir, Fars province, during the years 2007-2010.The indicators assessed ...
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The knowledge of livestock grazing behavior is one of the effective factors in rangeland management. This research was carried out in order to recognize the sheep grazing behavior in the rangelands of Cheshmeh Anjir, Fars province, during the years 2007-2010.The indicators assessed in this research included the daily distance traveled by livestock, average livestock movement, speed, and the time spent grazing. To determine these parameters, a GPS device was used and attached on the back of a 4- year old ewe using a special belt. Thus, after the start of grazing in the rangeland, the GPS was activated and then its data were extracted using mode track in ILWIS software at the end of the day. Data analysis was done in a completely randomized block design method using SAS software. The results of the study years showed that the average livestock movement speed and the daily distance traveled by livestock were significant at 1% and 5% levels, respectively; however, the time spent grazing did not show significant differences. Also, the results of study months showed that the average livestock movement speed was significant at 5% level and the daily distance traveled by livestock and the time spent grazing were not significant. According to the results, August 2008 with the mean value of 4 m/s and June 2009 with the mean value of 29 m/s had the lowest and highest average livestock movement speed, respectively; however, June 2009 with the mean value of 4.2 m/s and August 2008 with the mean value of 15.4 m/s had the lowest and highest distance traveled by livestock, respectively. The knowledge of mentioned factors will help rangeland management to determine the appropriate time for livestock moving and will increase livestock performance.
Hasan Yeeganeh; Mohammadreza Shariati; Adel Sepehri
Volume 25, Issue 3 , November 2018, , Pages 527-543
Abstract
Valuating the non-market environmental functions and services including tourism is important for many reasons including understanding the ecological benefits, providing the country's environmental issues to the planners, modifying the national computing system such as gross national product and preventing ...
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Valuating the non-market environmental functions and services including tourism is important for many reasons including understanding the ecological benefits, providing the country's environmental issues to the planners, modifying the national computing system such as gross national product and preventing the destruction and excessive exploitation of natural resources. The aim of this research is the estimation of the recreational value of Abar watershed using a contingent valuation method. To investigate the factors affecting willingness to pay of individuals, the logit model was estimated using maximum likelihood estimation. Required data were collected through questionnaires and interviews. The results showed that overnight stay, family cost, and satisfaction of welfare services were significant (P<0.05), affecting the WTP. The mean of WTP for recreational value of this rangeland was calculated to be 8096 Rials per visitor. According to the results, the Abar Watershed has considerable recreational values. Thus, these values provide enough justification for policymakers to maintain the quality of natural resources and avoid degrading rangeland resources.