A. Rezvanfar, H. Vaisy,
Volume 6, Issue 4 (winter 2003)
Abstract
To improve livestock production and to modernize dairy husbandry in Iran, it is essential to disseminate the most recent information on dairy husbandry technologies and management practices through various means among farmers. An understanding of farmers’ communication behaviour is essential in formulating effective communication strategies for livestock development. For the purposes of this study, East Azarbaijan Province was selected. The study will examine how farmers obtain information on dairy husbandry technologies and management practices and how they communicate with agents of technology transfer (extensionists). The major channels and sources used in obtaining information and inter-system communication by farmers are discussed. To study the farmers’ communication behaviour, a sample of 154 farmers from a total of eight villages (four villages from high level plain areas and four villages from low level plain areas) were selected using “Stratified two-stage random sampling” method. Data were gathered by filling out questionnaires that had been tested before. The criteria like frequencies in terms of number and percentage, mean and product moment correlation were calculated. In addition, multiple regression analysis was used for the analysis of the data.
According to the findings of this study, most farmers in the two groups (98%) had low information input score. The independent variables such as information output, farmer inter-system communication, farmer-researcher communication, farmer-extensionist communication, education, family education status and availability of input facilities had positive and highly significant relationships (P<0.01) with information input.
M Lotfalian, B Majnonian, M Rezvanfar, A Parsakho,
Volume 12, Issue 46 (fall 2009)
Abstract
In this research, the logging and wood extraction damages caused by wood and paper companies was investigated. The average volume per hectare of compartments 17 and 28 of Waston watershed and Compartment 7 of Alandan watershed was more than 150 cubic meters. So, these compartments were selected as the suitable research sites. The systematic randomized sampling method with 1000 m2 circular plots was used to assess the damages to residual stands and 100 m2 circular plots was used to assess the damages to regeneration. Sampling in skid trail was done with one hundred percent inventory method with a width of 12 meter. Results of this study indicated that 3.2 percent of regeneration was damaged in felling and bucking operations and 4.8 percent of regeneration was also damaged after winching and skidding operations. Most of these damages occurred for thicket stage. The felling and bucking operations damaged 13.6 percent of the residual stand. The amount of damage to the stand after skidding including the whole logging damages equals 15.5 percent. Unnecessary damages to stand and regeneration could have been avoided by selecting the best harvesting method, skidding practices, adequate incentives/disincentives and appropriate supervision.
