Central Asian Scientific Press (CAS-Press)Central Asian Journal of Environmental Science and Technology Innovation2717-40342620211201Forecasting occur probability intense storm using Gumbel distribution; Case study: Nahavand township21922613957610.22034/CAJESTI.2021.06.01ENSajad KiyaniEnvironmental Expert, Toyserkan Municipality, IranVahed KiyaniDepartment of Natural Resources, University of Tehran, Tehran, IranNeda BehdarvandDepartment of Fisheries and Environment, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, IranJournal Article20211002Natural disasters such as storm are not tangible that allocate about 30% share of 90% of natural disasters. This study aimed to forecast occur probability of intense storms using Gambel distribution in Nahavand township based on 10 years, period from 1996 to 2005.<strong> </strong>Nahavand due to climatic characteristics and topography is an area stormy in Hamedan province and base on Nahavand station include the most occur storms in 2003 and 2004. In this study, Rainfall zoning of Hamedan province was done by geo statistic based on average rainfall 33 stations in Hamedan province and 10 stations from neighboring provinces. For indicating average speed and aspect of wind was used Wind rose. Using Wind rose software designed wind rose of autumn and winter moreover. Gambel distribution was used for study statistically and predicting the incident probability of stormy and strong winds in Nahavand. To select days along with stormy and strong wind, winds with equal speed and more than 17 m/s and accepted by the Weather Meteorology Organization (WMO) are accounted as days by a stormy and strong wind. Also, applied types of distribution using Smada software which best fit was for the Gumbel distribution. Based on the Beaufort index in a return period of 5 years, with a speed of 26 m/s and more there is likely to storm in the station of Nahavand. On the other hand, the maximum of thunderstorms of Hamedan province occurred in Nahavand station and most number of them is in the spring season. If the storm continued causing great damage to agriculture, services, electricity and telephone lines, trees, and gardens, etc. Thus, for the environmental planning and safety of structures must consider the occurrence of this natural danger to decrease these disturbing effects.Central Asian Scientific Press (CAS-Press)Central Asian Journal of Environmental Science and Technology Innovation2717-40342620211201Assessing the non-commercial values of environmental resources by using CVM; Case study: Siberian Crane, Fereydounkenar international wetland of Iran22723713960710.22034/CAJESTI.2021.06.02ENAhmadreza YavariDepartment of Environmental Planning, Management and Education, School of Environment, College of Engineering, University of Tehran, Tehran, IranBehnaz Moradi GhiasabadiDepartment of Environment, Damavand Branch, Islamic Azad Univercity, Damavand, Iran0000-0001-6241-1356Shahrzad KhoramnezhadianDepartment of Environment, Damavand Branch, Islamic Azad Univercity, Damavand, IranJournal Article20210726Natural recourses play a significant role in human's well being but economists' attention is mostly taken only on the marketable value but nowadays the tends, is changing as economic Valuation intends to create outstanding changes in public awareness by the valuation of biological resources like aquatic and land habitats of plant and animal and also to create a stronger motive for protection because as everybody knows free goods do not worth so different methods have been innovated and researchers have been studied in this way. These researches had made considerable progress in the valuation of environmental and ecological services, which was afforded by ecosystems. Contingent Valuation Method (CVM) is one of economic valuation tools, is based on public viewpoints, measures of individual’s willingness to pay (WTP)<sup>2</sup> and individual’s willingness to accept (WTA)<sup>3</sup> and maximum likelihood (ML)<sup>4</sup> application. The result of a study on a measure of WTP shows that about 93% of the people are ready to pay monthly for protection and survival of Siberian Crane and only 7 % of them were not ready to pay only because of their low financial level. Results on the measure of WTA indicate that all 100% of people were not ready to accept money instead of annihilation of the Crane. The average willingness to pay for Siberian Crane protection is accounted 231723$ at the national zone and 57914270$ at the regional zone. Since the fisher test does not respond at the national zone and the difference was significant, extending the number of the samples to the national zone is impossible. It is merely possible to mention that about 1500 families in the country are ready to pay 40,000RLs monthly or 72,000,000 RLs annually only for the survival of Siberian Crain.Central Asian Scientific Press (CAS-Press)Central Asian Journal of Environmental Science and Technology Innovation2717-40342620211201Overview of the impact of coronavirus on the environment, food and sustainable agriculture in Iran23824414184510.22034/CAJESTI.2021.06.03ENBita AbbasiDepartment of Plant Production and Genetic Engineering, Razi University, Kermanshah, Iran0000000240344145Alireza BagheriDepartment of Plant Production and Genetic Engineering, Campus of Agriculture and Natural Resources, Razi University, Kermanshah, IranMahmood KhoramivafaDepartment of Plant Production and Genetic Engineering, Campus of Agriculture and Natural Resources, Razi University, Kermanshah, IranSadegh JalilianDepartment of Agro Ecology, University of Zabol, Zabol, IranJournal Article20211031Coronavirus began in early 2020 while posing a serious threat to agricultural production. A natural sucker for assessing risk between family farms provides answers. Unlike other types of risk, this disease does not directly affect family farms. It affects economic conditions, rising and falling prices for commodities and raw materials, relations between countries and their governments, and comments from experts and economists around the world. In countries already experiencing severe food insecurity, the issue is not only access to food, but also food production. The spread of coronavirus in Iran will also have a major impact on the domestic economy, agriculture, environment, and food. The damage caused by the Covid-19 epidemic to the agriculture and food industries is largely due to decreased demand, restrictions on importing and exporting agricultural and food products, and a reduction in the seasonal workforce due to the ban on driving and the closure of companies that produces agricultural products, packaging, and produce. Finally, if the spread of the coronavirus is not controlled, the damage will increase significantly. This will make the continuation of many businesses involved in agricultural and food production a serious challenge. The economic, health and social impacts of COVID-19 have direct and indirect links to the natural environment and to the way agri-food systems are organized. On the other hand, the growing environmental constraints in Iran reduce the potential of the agricultural sector to play a key role in the economy and ensure food security. Covid-19 therefore forces national programs and budgets to cope with growing ecological constraints. Therefore, the present case study refutes the hypothesis that Covid-19 has no effect on food security in Iran.Central Asian Scientific Press (CAS-Press)Central Asian Journal of Environmental Science and Technology Innovation2717-40342620211201A new approach in irrigation of Sistan plain by applying special social, climatic conditions and available resources24525514234410.22034/CAJESTI.2021.06.04ENJavad VejahatMaster of Hydraulic Structures, University of Tehran, Karaj, IranShadi SarafMaster Student of Hydraulic Structures, Sari Agriculture and Natural Resource University, Sari, Iran0000-0003-2493-5276Journal Article20211030Water and soil are the most important and main available capital available in geographical areas. Case study of large and fertile plains has always been considered as a turning point in terms of productivity and increasing efficiency in this sector. In addition, the social dimension has the most flexibility in the study of factors. This issue can pave the way for the formation of different approaches. In general, irrigation management is possible through three sectors: public (government), private sector and private organizations (water users). Irrigation plan of Sistan plain in 46000 hectares of lands of this region within the lands of Zabol, Hamun, Zehak, Hirmand and Nimruz cities in 17 civil development units and the form of water supply to the lands in the form of detailed studies in the fields of soil science, hydrology and is hydraulically operated. In this research, the conditions of implementation of this project in terms of the type of implementation and operation have been studied in detail. The results showed that in arid and semi-arid regions, special social conditions, the state of resources lead to the fact that the operation of irrigation projects requires special conditions and without considering the direct role of farmers in the form of cooperatives and Water groups should be able to achieve the best efficiency conditions.