جستجوی مقالات مرتبط با کلیدواژه « LOGIT Model » در نشریات گروه « اکولوژی »

Desert ecosystems have a considerable potential to attract domestic and foreign tourists, and it is essential to pay attention to their market and non-market values in sustainable economic development. The purpose of this study is to estimate the conservation value of Khoor-o-biabank city and investigate the factors affecting people's willingness of people to pay for the protection of this area using the logit model and the maximum likelihood estimation method. For this purpose, 388 questionnaires from the visitors of the studied area were collected and analyzed using the conditional valuation method using the two-dimensional double choice extraction method. The analysis of the collected data showed that 71.8 percent of people are willing to pay for the protection of the area, which indicates its high importance from the point of view of visitors. Also, the results show that the maximum willingness to pay each person for the protection value of the area is 108,540 Rials. Based on this, the annual protection value was determined as 4,228 million Rials. Gender, occupation, frequency of visits to the region, importance to the environment, income and membership in environmental protection organizations have had a positive and significant effect on the willingness to accept the proposed amounts. The results of the present research can help the managers of the tourism field in the planning of the province in improving the tourism conditions and also prioritizing these points.

An economic valuation can be considered as an effective strategy to improve environmental policies to achieve ecologically sustainable development. This study is applied in terms of purpose and is descriptive-analytical in terms of data collection. The statistical population in this research is tourists and travelers who have traveled in the rangelands of the region. The data of this study were collected in 2019. The willingness to pay has been calculated with the use of Contingent Valuation Method and the Logit model. According to results, the average willingness is 5019.68 Rials to pay for tourism in Alamout-e Sharghi rangelands and it is estimated at 752955000 Rials the annual value of tourism in these rangelands. Also, the variable of income had a positive effect and the variables of the proposed cost, the number of visits and the number of family members had a negative effect on the willingness to pay for people's recreational use of natural attractions in these rangelands. Tourists who believe in the local management of rangelands have been more willing to accept the proposed costs than others. Besides, the environmental is of great value to all tourists. The percentage of correct prediction in the estimated model is 0.79%. The logit model has been able to predict a high percentage of dependent variable values according to explanatory variables. This study found that there are many barriers to the development ecotourismin Alamut rangelands including: lack of widespread publicity at the right time, lack of public participation in tourism, lack of suitable accommodation and hotels for tourists, lack of parking in village tourist places, lack of medical centers and proper communication services in the village. In this case, some suggestions were also made, including: Increasing the credits of the tourism sector and attracting private sector investors, Development of accommodation and catering facilities, Increasing the share of construction credits, Development of the transportation and road network, Expansion of winter recreation and sports and identification of villages with high tourist-agro-ecotourism potential.

Soil is one of the natural resources that has an important role in the agricultural production and food safety, but the land degradation caused by soil erosion is a serious environmental problem that threatens human welfare and agricultural sustainablity. In this study factors that affecting the adoption of non-mechanical method of soil conservation were investigated in crop lands of the Nazlo in Urmia County. Data were collected in 2016 by completing questionnaires from 150 farmers. The cluster sampling method and Cochran formula were used to select farmers. Logit model were used to analysis the data. The results showed that variables including participate in educational and promotional classes, Total income from rainfed farming, Slope of agricultural land, education, Attitude to soil conservation, Employment history in agriculture, Level of familiarity with conservation agriculture, the rate of soil erosion in agricultural land, enough labor to do protective actions, Believing in increasing long-term profits by carrying out soil conservation measures have a positive and significant effect on the adoption of soil conservation Practices. Also, variable include non-agricultural employment has a negative and significant effect on the adoption of soil conservation Practices. According to the results, it is essential to provide training on soil conservation techniques that increase the technical knowledge and awareness of farmers about the consequences of erosion and the benefits of soil conservation Practices.

This study survived the factors affecting on water demand in agricultural and domestic consumption, amount of water demand and income and price elasticities in household sector in the north of Sistan and Baluchestan. For this purpose, we used the Stone-Greay utility function in the household sector and considered quantitative and qualitative factors influencing the optimal water resources management in agriculture using the Logit model. The results of water demand function estimation in household sector showed that the demand for per capita in general condition was equivalent to 61.5 cubic meters per year and the extera consumption per capita in this case was 26.8 cubic meters. Also, income and price elasticities of household water demand in this case were equal to 282.0 and 373.0 respectively, indicating that the demand for water was less tangible than price; Income stretch is less than one, indicating the necessity of water. The results of estimation of the optimum water consumption model showed that the most effect was on the work experience and history variables and then the variables of using fertilizers and chemical pesticides, type of communication channels, irrigation methods, education and education level had the most effect on optimal use of agricultural water resources.

Increase in greenhouse production in Yazd province has resulted increase in consuming of fertilizer and pesticide use therfor, so it is necessary to reduce using of chemical materials in greenhouse production and increase of organic products. The aim of this study was to investigate the factors influencing process of transition to organic agriculture in greenhouse cucumber producers in Yazd province. This study was a descriptive-survey research. Data collection tools were questionnaires and face to face interviews with 144 producers of greenhouse cucumber in the province. Data analysis was done using descriptive analysis, T-test and logit econometric model. Among 144 greenhouse cucumber producers, 59 people have a positive trend to become organic farmers and 85 people showed no interest. Results showed that the low knowledge of producers in the field of organic farming, lack of sufficient support of organic farming by government, high-risk of organic farming, the lack of specific market and are the major obstacles on the way of the production of organic products. Logit model results showed that there is a significant positive relationship between the level of production experience, age, education, sanitary positive attitude towards environment and desire to have organic farming. There is a significant negative correlation between using of chemical fertilizers and pesticides and desire to have organic farming. Due to lack of knowledge in the field of technical, management and sales of organic products, government support and control of the production in this area is essential.

Crop yield insurance is common either individual or regional. In our country the individual insurance is executed. It seems that in order to increase the effectiveness of risk management tools in the agriculture، the area crop yield insurance should be introduced as a new tool. In this context، the study investigated the effective factors of sugar beet producers’ participation in proposal of area yield insurance in Khoy County. The logit model has been used and the required data gathered from 202 beet breeders in Khoy County as census. Results showed that 82 percent of farmers want to participate in the yield insurance and 18 percent do not want to participate in this plan. Results of logit model estimation indicated that damage-income ratio، propagation classes and farmers age variables have positive and significant effect on participation in area yield insurance. Also insurance level and farmers experience have negative and significant effect on participation. Holding training classes، rational premium and increasing coverage level will lead to participation of the farmers in new plans of area yield insurance.

One of the modern types of insurance is the weather index insurance that has developed based on climatic parameters such as rainfall and temperature. The weather insurance significantly decline traditional insurance problems such as moral hazard and adverse selection. This study, whiles introducing the weather index-based insurance, has examined the factors that influence the willingness to participation of farmers on the weather index-based insurance plan using the logit model in Ahar County. The required data was collected form 289 farmers in this county in 1391 year. Results of estimated logit model showed that the satisfactory from performance of agricultural products insurance, familiarity with the weather index-based insurance, high school education and the type of agricultural enterprise have direct and significant effects on probability of adoption of the weather index insurance. Whereas, the proposed amount of premium and the number of occurred damage in recent 3 years have reverse and significant effects on it. In this context, the familiarity of wheat cultivators by the weather index insurance has the most effect on the probability of adoption of weather index insurance. Based on the estimated parameters of logit model, the average premium that calculated for the willingness to pay of the Ahar wheat cultivators was 91470 Rials per hectare and in comparison with the current insurance premium of wheat yield insurance, which is about 145000 Rials, This amount is reasonable.

Augmentation of applying the unnatural and mainly chemical inputs by humankind causes increasing rate of disease and arisen environmental problems. In these circumstances, the importance of safe food production is getting clearer. With respect to that, understanding the determinants of consumer's willingness to pay for these safer products is becoming increasingly important in the field of production and consumption planning. In this regard, the purpose of this study is to investigate factors affecting the consumer's willingness to pay the premium for the safer food products. A contingent valuation survey of 180 respondents was conducted during spring and summer of 2009 in Agricultural administration of East Azerbaijan. An Ordered Logit regression model was applied to determine factors effecting consumer's willingness to pay for safer food products. The survey results have shown that about 97 percent of the respondents would be willing to pay a premium. Also, 84 percent of consumers would be willing to pay about a premium between 5 to 25 percent, while about 13 percent of them would be willing to pay more than 35 percent premium for safer food products. Results have revealed that factors like individual's income, family dimensions, environmental concerns and wholesome diet, besides, consumer's awareness of safer food product's characteristics significantly increase their willingness to pay a premium for safer food. Furthermore, females would be willing to pay a higher premium, and those who have people with special circumstances in their family significantly would be willing to pay a higher premium price for these products.