فهرست مطالب jamaluddin daryabari

This paper studied the climatological parameters in six synoptic stations in zone of southeast Iran (1987-2020) and during two periods of 2021-2040 and 2041-2060 using General circulation model (GCM). Accuracy of LARS-WG model for simulating climatological parameters was evaluated through MAE، RMSE، R2، NSE. Crop Water Requirement was defined through determining appropriate planting date and Length of growing season with temperature and growing degree days (GDD). Due to increase in max temperature, Climate change decrease the length of growth period in various phases as 1-10 days which it causes delay in cultivation date under climate change condition and shorten the length of planting season as 15-28 days. Correct management of some factors such as crop variety and optimized cropping pattern according to the regional climate and knowing the climate condition of current -future could mitigate the adverse effects of climate change on the growth and yield of agriculture crops

The human relationship with the earth, over time, is always changing. This, in turn, has had a decisive impact on the use of urban lands. Therefore, in order to control urban growth, it is very important that, by identifying the ecological potential of the environment, the process of future development of the city be directed and managed in order to minimize the negative environmental impacts of natural resources of the city. With this view, after the implementation of the evaluation indicators through the system model, it has been tried to provide appropriate solutions for predicting future development of the city with an emphasis on environmental aspects. Therefore, while assessing the ecological capability of urban development in Sari using a system model, the zones in the form of very suitable and relatively suitable land parcels of urban development along with inappropriate land were identified. A very suitable class for urban development system model covered an area of about 433.143 square kilometers, equivalent to 11.22 percent, and a relatively suitable land had a surface of 126.29 square kilometers, equivalent to 34.3 percent of the city of Sari. Finally, it was concluded that 3,103 km2, which is 84.84% of the total 3662.151 sq. km of the area of Sari, cannot be developed for the creation of urban elements and other uses due to the indicators defined in the systemic model (Makhdoom). Undoubtedly, in order to preserve the ecosystems and environment, following this task seems necessary for the authorities to develop urban areas in future.