assessment of industrial crops biodiversity in kermanshah province during 2013-2022

Agroecosystem health is a function of biodiversity; however, less attention has been paid to the importance of this issue in agricultural systems. therefore, this study evaluated the biodiversity of industrial crops in kermanshah province. the required data, including industrial crops and their cultivation areas, were collected from the statistics and information bank of the agricultural organization for the years 2013-2022. then biodiversity indices including species richness, shannon-wiener, evenness, and sorenson's similarity were calculated. among the counties, kermanshah, sarpol-e zahab, and sahneh had the highest species richness in most years, while gilan-e gharb county showed the lowest species richness. the highest shannon-wiener index value for the entire province was 1.11 at 2013, and the lowest was 0.78 at 2015. the counties of sarpol-e zahab, gilan-e gharb, kermanshah, and ravansar had the highest shannon-wiener biodiversity index values in most crop years, while songhor county had the lowest value of this index, such that at 2013, the value of this index was 0.104 and decreased annually by approximately 0.8 units to about 0.020 at 2022. among the province's counties, the highest sorenson's similarity index was observed between kermanshah and islamabad (1.0), and the lowest was between sahneh and songhor counties (0.8). the highest evenness index was found in islamabad-e gharb, ravansar, gilan-e gharb, and sahneh with values of 0.05, 0.16, 0.17, and 0.094, respectively, while the lowest was in songhor with a value of 0.003.