Investigating the challenges of biodiversity management of Sefidkuh Khoramabad protected area by using the Delphi method

The main source of economic and agricultural development of all countries is natural resources. The dependency of local communities on natural resources and protected areas, and the excessive exploitation of forests and pastures and wildlife, has led to the destruction and degradation of biodiversity. The basis of managing protected areas in Iran is based on protection, research, training and entertaining, but in reality, protection is only limited to one fifth of these areas, which are safe. There is no management on the surrounding lands (the danger of islandization). Therefore, the purpose of this study is to identify and investigate the challenges of biodiversity management of Sefidkuh Khoramabad Protected Area by using Delphi method. This is a descriptive-analytic study. Thus, after identifying the available biodiversity and field visits and identifying the threats in the region, questionnaires were designed by experts regarding the Likert scale and were given to experts and specialists.The questions were answered by the experts and were analyzed by SPSS Software, the answers were prioritized by regression and descriptive analysis of existing threats and explained its relationship with four research variables (academic degree, familiarity with the region, job and employee of the organization). Then, this priority was organized as a questionnaire, and was given to the expert for final approval and identification of the main threats. Finally, some suggestions and recommendations are given.Keywords: Biodiversity, Challenges, Protected Areas, Sefidkouh, Prioritizatio

D:Int Agrophysics -3ShahbaziShahbazi.vp

A b s t r a c t. The objective of this research was to determine the effects of moisture content and stalk region on some physical and mechanical properties of safflower stalks. The experiments were conducted at four moisture contents of 9.98, 17.85, 26.37 and 38.75% w.b. and at the bottom, middle and top regions of stalk. The values of the stalk physical properties increased with increasing moisture content. Their values also increased towards the bottom region. The bending stress and Young modulus in bending decreased with increase in the moisture content and increased towards the top regions. The average bending stress values and Young modulus in bending varied between 47.71 and 25.9 MPa and between 2.52 and 1.28 GPa, respectively. The shearing stress and the specific shearing energy increased with increasing moisture content. Their values also increased towards the bottom region of the stalk. The maximum shear stress and specific shearing energy were found to be 7.66 MPa and 33.05 mJ mm -2 , respectively, and both occurred at the bottom region with the moisture content of 38.75% w.b. K e y w o r d s: safflower stalk, bending stress, Young modulus, shearing stress, specific shearing energ