Despite the high value of natural resources in environmental and socio ¬economic development they are being gradually destroyed due to population growth, over exploitation, lack of people's knowledge, insufficient educational programs by extension agencies, and low level of environmental conservation practices in developing countries. Hamoon Lake in Sistan is one of the highly damaged natural zones in Eastern Iran. Other benefiting from local people, raising their level of knowledge, and involving them in the problem solving it seems there is no other way of reclaiming Hamoon Lake. Extension factors are among the most effective tools to encourage reed growers to participate in extension activities. This research was carried out to help understand the role of at least 14 extension factors along with SOine six personal ones in motivating reed growers to participate in canebrakes reclamation. Statistical sample in this study was drawn randomly from 1599 reed growers living by the lake. A number of 1 70 reed growers were selected through quota sampling from among the local population. This study is a kind of correlational or associational research which has been accomplished through questionnaire, observation and interview. Data analysis was accomplished using SPSS- Win. The results obtained from calculating correlation coefficients between variables showed positive and statistically significant (at 5% level) relations between participation of reed growers in canebrake reclamation and the number of extension factors such as publications sent to and received by them, their visiting of the control and treatment plots, their nUlnber of cattle units, the number of meetings with local leaders, and the population of the dwelling place. Reed growers' participation in canebrake reclamation was also correlated with the rate of attending training classes, watching video canebrak programs, their previous record of attending voluntary activities including Reed Feast at a 1 % level. Stepwise multiple regression indicated that variables like watching video programs related to canebrake reclamation, attending training classes, visiting control and treatment plots, and meeting local leaders were considered as the most effective factors in predicting reed growers
participation in extension activities.
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